RXL applications library

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1 RXL applications library CLC and RAD description of functions for CC-02 (CLC and RAD applications: see document CM110676). Related documents CM CM1Y9776 CLC and RAD applications from CC-02 RXB / RXL integration individual addressing. CM110784en_ Siemens Building Technologies

2 Table of contents 1 Introduction Revision history Copyright Quality assurance Document use / request to the reader Target audience, prerequisites Bus supply for RXL controllers RXL controller communications Integration of the RXL controllers into DESIGO Use of the RXL controllers with Synco Definitions / Tools Signals and parameters (presentation) Supported tools Parameterization using ACS Parameterization using the HandyTool Operating HandyTool functions Minor parameterization using room unit QAX Major parameterization using room unit QAX Select the device address using room unit QAX Upload/download parameters using room unit QAX Test the periphery using room unit QAX Select communications mode Address zones for Synco RXL application example with RMB795 for geographical and time switch zones Implement application example Heating and cooling demand zones Applications / Parameters Select application Parameter settings Room operating modes Description Overview Determine the room operating mode with DESIGO Local control of room operating mode via a window contact Central control of room operating mode via input from the Use schedule Central and local control of room operating mode based on occupancy Central control of room operating mode via room operating mode schedule Local control of room operating mode with a room unit DESIGO examples Determine the room operating mode with Synco Local control of room operating mode via window contact input Central room operating mode control via Enable Comfort Central control of room operating mode via room operating mode input Local control of room operating mode via presence detector Local control of room operating mode with a room unit Synco examples Determine the room operating mode without a bus (stand-alone) Local control of room operating mode via a window contact input Local control of room operating mode via presence detector Local control of room operating mode with room unit /94 Building Technologies Contents

3 5.5.4 Example for stand-alone Setpoint calculation Description Setpoint settings with the tool Setpoint setting runtime Central setpoint shift Local setpoint shift Temperature measurement Room temperature measurement Local temperature sensor at PPS2 interface Local temperature sensor at analog input Averaging analog input & PPS2 interface Sensor correction Outdoor temperature via bus (CLC02, RAD01) Control sequences Radiator (RAD01) Actuator type selection Values representing valve actuator positions Valve exercising feature Downdraft compensation Chilled ceiling (CLC01) Select actuator types for chilled ceiling Values representing valve actuator positions Valve exercising feature Dewpoint monitoring Chilled ceiling and radiator 4-pipe (CLC02) Configuration and parameterization Master/slave Peripheral functions General / central functions Digital inputs Temporary Comfort mode Presence detector switch-on and switch-off delay Heating and cooling demand Special functions Morning boost (Morning Warmup) Precooling (Precool) Emergency heat Free cooling (Freecool) Alarm With DESIGO With Synco Reset setpoint shift Software version Device state Room unit Bus information Reset and startup response LED flashing pattern Startup delay Bus load HandyTool parameters by number...79 Building Technologies Contents /94

4 12.6 HandyTool parameters, alphabetical HandyTool enumerations FAQ Integration of RXL in DESIGO/Synco Case 1: Integration in Synco Case 2: Integration in DESIGO Case 3: Display in DESIGO, with shared Synco schedule Case 4: Display in DESIGO/Synco, with shared Synco schedule Case 5: Display in DESIGO, separate schedules Case 6: Separate display, separate schedules Case 7: Separate display, shared Synco schedule Working with different tools /94 Building Technologies Contents

5 1 Introduction 1.1 Revision history CM110784en_ Interchanged HandyTool settings 2 and replaced RXB by RXL CM110784en_ Temperature averaging Downdraft compensation CM110784en_ Offset for motorized actuators ( 3rd party) 12.7 Table "HandyTool enumerations" CM110784en_ First edition 1.2 Copyright This document may be duplicated and distributed only with the express permission of Siemens, and may be passed only to authorized persons or companies with the required technical knowledge. 1.3 Quality assurance These documents have been prepared with great care. The contents of all documents are checked at regular intervals. Any corrections necessary are included in subsequent versions. Documents are automatically amended as a consequence of modifications and corrections to the products described. Please ensure that you are aware of the latest revision date of the documentation. If you find any lack of clarity while using this document, or if you have any criticisms or suggestions, please contact the product manager in your nearest branch office, or write directly to the support team at Headquarters in Zug (see below). Support address: Siemens Switzerland Ltd. Building Technologies Group International Headquarters Field Support 5500 Gubelstrasse Zug, Switzerland Tel Fax fieldsupport-zug.ch.sbt@siemens.com Building Technologies Introduction /94

6 1.4 Document use / request to the reader Before using our products, it is important that you read the documents supplied with or ordered at the same time as the products (equipment, applications, tools etc.) carefully and in full. More information on the products and applications (e.g. system descriptions etc.) is available on the Internet/intranet at We assume that the users of these products and documents have the appropriate authorization and training, and that they are in possession of the technical knowledge necessary to use the products in accordance with their intended application. If, despite this, there is a lack of clarity or other problems associated with the use of the documentation, please do not hesitate to contact the Product Manager at your nearest branch office, or write directly to the support team at our Swiss headquarters. fieldsupport-zug.ch.sbt@siemens.com. Please note that without prejudice to your statutory rights, Siemens accepts no liability for any losses resulting from non-observance or improper observance of the points referred to above. 1.5 Target audience, prerequisites This document assumes that users of the RXL controllers are familiar with the Synco ACS tool and able to use it. For details concerning the bus see document CE1N Bus supply for RXL controllers RXL controllers work without bus supply if the following conditions are adhered to: Parameterize only using the Handy Tool (not with ACS). No integration in a building automation and control system (e.g. DESIGO, Synco). No changeover operation (sensor signal via bus). No master/slave combinations. Else, the bus, used by RXL room controllers for communications, requires a bus supply. Each controller consumes 5 ma. Thus, select the supply according to the number of controllers. We recommend the following products: Manufacturer Type Designation Siemens Building Technologies ACX95.320/ALG Power supply 320 ma Siemens Automation and Drives 5WG AB01 Power supply 160 ma 5WG AB11 Power supply 320 ma 5WG AB21 Power supply 640 ma 6/94 Building Technologies Introduction

7 1.7 RXL controller communications RXL controllers support proprietary TP1 communication. 1.8 Integration of the RXL controllers into DESIGO The RXL controllers are integrated into DESIGO using a proprietary Individual addressing procedure. See CM1Y9776, RXB / RXL Integration Individual Addressing. 1.9 Use of the RXL controllers with Synco The RXL controllers can be used in conjunction with Synco. The interface is designed to communicate with Synco 700 controllers. Building Technologies Introduction /94

8 2 Definitions / Tools 2.1 Signals and parameters (presentation) Inputs, outputs and parameters of an application can be influenced in various ways. This description of functions applies the following symbols: Room unit The room unit influences parameters shown with this symbol. ACS Service Parameters identified with this symbol are parameterized with the ACS service tool. HandyTool Parameters identified with this symbol are parameterized with the HandyTool. The left margin contains the symbol for the HandyTool next to a table containing the parameter number, short name and default value. The number has syntax *xxx, with xxx being a three-digit number. HandyTool Parameters Short name Basic setting *069 Comfort heating setpoint 25.0 C Note A list of the parameters by number and in alphabetical order is located in chapters 12.5 and 12.6, and in the description of the functions. A table of parameters with enumerations fort he HandyTool is shown in Section Supported tools STOP Important! The RXL controllers can be commissioned with the Synco ACS Service too or the HandyTool. Be careful when using different tools. The following rule applies: Last one's right! When you use an OCI700 as the interface, connect it to the controller's or room unit's service socket. The OCI700 must be powered via USB by the computer as long as it is connected to the service socket. Otherwise, the LCD display for the room device goes dark and the controller goes to addressing mode. 8/94 Building Technologies Definitions / Tools

9 2.3 Parameterization using ACS ACS Service This manual does not describe how physical addresses are defined. This information can be found in the ACS description. In the ACS Service program, select Plant, Open to open the plant. To start parameterization, select Applications, Parameter settings: Building Technologies Definitions / Tools /94

10 2.4 Parameterization using the HandyTool HandyTool The HandyTool function is included in the QAX34.3 room unit allowing you to parameterize RXL room controllers. The following settings are possible in the room controllers: Parameters. Physical address. Zones. QAX34.3 room unit Minor parameterization Major parameterization. In addition to its room unit functionality, this device also allows for parameterizing room controllers. If the room controller was preprogrammed (via ACS or HandyTool). Physical address. Zones (with Synco). Setpoints. Master/slave settings. All parameters. Parameters The parameter numbers and their functions are described in the sections below Operating HandyTool functions Function of the buttons + = Count / move up. = Count / move down. > = Escape (leave unconfirmed). < = Enter (confirm) Z70 Display Parameter position. e.g. P006 Value to be adjusted. e.g (a temperature). or 250 (e.g. a particular type of actuator). New start following important parameter changes The controller is restarted if certain configuration parameters are changed (e.g. *063 Actuator type). 10/94 Building Technologies Definitions / Tools

11 2.4.2 Minor parameterization using room unit QAX34.3 Start parameterization mode: Press buttons <, > and simultaneously for about 2 s until the display turns dark. Release the buttons. Press button twice briefly. The display now shows 0 (mode 0). Use + and / or to choose between the following modes: 0 = Normal mode (normal room unit functions). 2 = Display mode: The parameters are displayed with prefix "d" (e.g. d015). Press +/ to find the number and confirm with < (Enter). This displays the corresponding value. Press < (Enter) or > (Escape) to return to the list. 3 = Parameterization mode Allows you to set selected parameters (see below). They are displayed with prefix "P", e.g. P002. Press +/ to find the number and confirm with < (Enter). This displays the corresponding value. Press +/ to change the value and confirm with < (Enter). Press > (Escape) to return to the selection without changing anything. Press Escape again to return to the mode selection. Press Escape again to return to Normal mode (room unit). Note The numbers of the parameters are listed in sections 12.5 and 12.6, and in the descriptions of the functions. A table of parameters with enumerations fort he HandyTool is shown in Section Adjustable parameters (parameterization mode) P001 Physical address P002 Physical address P003 Physical address P008 Geographical zone (apartment). P009 Geographical zone (room). P010 Geographical zone (subzone). P011 Time-switch zone (apartment). P012 Time-switch zone (room). P013 Time-switch zone (subzone). P016 Heat distr zone heating surface. P017 Refrig distr zone cooling surface. P018 Outside temperature zone. P021 Master/Slave. P023 Master/Slave zone (group). P031 Economy cooling setpoint. P032 Precomfort cooling setpoint. P033 Comfort cooling setpoint. P034 Comfort heating setpoint. P035 Precomfort heating setpoint. P036 Economy heating setpoint. (range). (line). (device address). P240 Device status. Building Technologies Definitions / Tools /94

12 2.4.3 Major parameterization using room unit QAX34.3 STOP Caution This parameterization mode allows for changing also critical values. As a worst case scenario, components (controllers/actuators or other plant parts) may be destroyed. Start parameterization mode: Press buttons <, > and simultaneously for about 2 s until the display turns dark. Release the buttons. Press button twice briefly. Press buttons + and simultaneously for approx. 2 s The display goes dark. Press button + twice briefly. The display now shows 0 (mode 0). Use + and / or to choose between the following modes: 0 = Normal mode (normal room unit functions). 1 = Test mode (see 2.6). 2 = Display mode (see 2.4.2). 3 = Parameterization mode (see 2.4.2). 4 = Upload (see 2.5). 5 = Download (see 2.5). 6 = Service mode: All parameters can be set. They are displayed with prefix "S", e.g. S053. Press +/ to find the number and confirm with < (Enter). This displays the corresponding value. Press +/ to change the value and confirm with < (Enter). Press > (Escape) to return to the selection without changing anything. Press Escape again to return to the mode selection. Press Escape again to return to Normal mode (room unit). Note A list of the parameters by number and in alphabetical order is located in chapters 12.5 and 12.6, and in the description of the functions. A table of parameters with enumerations fort he HandyTool is shown in Section Select the device address using room unit QAX34.3 The device address is contained in parameters *001, *002 und *003. *001 can assume the values *002 can assume the values *003 can assume the values Example: Each address must be unique within a plant. 12/94 Building Technologies Definitions / Tools

13 2.5 Upload/download parameters using room unit QAX34.3 This function requires a QAX34.3 with index D or higher! The HandyTool can save 5 different controller parameter sets. These are uploaded from a fully parameterized controller using the Upload function. Download allows for transferring such a data set to one or several controllers (prerequisite: same controller type). The address and the zones must be adjusted (see 2.4.2). STOP Caution Download allows for changing also critical values. As a worst case scenario, components (controllers/actuators or other plant parts) may be destroyed. Start parameterization mode: Press buttons <, > and simultaneously for about 2 s until the display turns dark. Release the buttons. Press button twice briefly. Press buttons + and simultaneously for approx. 2 s The display goes dark. Press button + twice briefly. The display now shows 0 (mode 0). Use + and / or to choose between the following modes: 0 = Normal mode (normal room unit functions). 1 = Test mode (see 2.6). 2 = Display mode (see 2.4.2). 3 = Parameterization mode (see 2.4.2). 4 = Upload. 5 = Download. 6 = Service mode. If 4 or 5 is displayed, this mode can be selected via < (Enter). The storage number (c1) is displayed and can be changed via + /. Select the desired storage (1.. 5) via < (Enter). Upload If storage is empty, upload begins and the display flashes. OK is displayed after successful upload. If the storage is full, "del" for "Delete?" is displayed. Pressing <(Enter) at this time overwrites the existing set. If you press > (Escape), the storage number which you can change via + / is displayed. Download If the parameter set does not match the connected controller, error message "Err" is displayed. Press > (Escape) to return to the storage number and select a different number. If the parameter set matches the connected controller, start download (display flashes). If connected successfully, "P1" is displayed (see 2.4.2). Building Technologies Definitions / Tools /94

14 2.6 Test the periphery using room unit QAX34.3 This function requires a QAX34.3 with index D or higher! The HandyTool allows you to test the connected field devices (sensors, actuators). This works only for the controller connected to the HandyTool; master/slave operation is not possible. Prerequisite An application must be selected and fully parameterized in the controller (address and zones can contain default values). Start parameterization mode: Press buttons <, > and simultaneously for about 2 s until the display turns dark. Release the buttons. Press button twice briefly. Press buttons + and simultaneously for approx. 2 s The display goes dark. Press button + twice briefly. The display now shows 0 (mode 0). Use + and / or to choose between the following modes: 0 = Normal mode (normal room unit functions). 1 = Test mode 2 = Display mode (see 2.4.2). 3 = Parameterization mode (see 2.4.2). 4 = Upload (see 2.5). 5 = Download (see 2.5). 6 = Service mode. The following positions can be selected depending on the type of parameterization. They are displayed with prefix "T". The list shows all theoretically possible positions. However, only positions that are available for selection based on the type of parameterization are displayed. Theoretically possible positions for periphery testing: T 01 Sensor input B1 9) Value of B1 in C. T 11 T 12 Digital input D1 Digital input D2 9) 9) True state of the contact at D1 (0 = open; 1 = closed). True state of the contact at D2 (0 = open; 1 = closed). T 21 Heating valve 1) 2) 7) By considering the configuration (proportional; 100 = 100% pos. signal). T 22 Cooling valve 1) 2) 7) By considering the configuration (proportional; 100 = 100% pos. signal). T 25 Heating surface 1) 7) By considering the configuration (proportional; 100 = 100% pos. signal). 1) 2) 7) 9) Considering the configuration means: For thermal actuators, the output is clocked 1:1 during the first 400 s, then as per the % entry. Motorized actuators open at 100% 1.5 times the runtime, and close at 0% 1.5 times the runtime. T21 and T22 have the same effect in changeover applications. Operates only the I/Os of the controller in test mode, no bus actuators. Values are correct when read, but will not automatically be updated. 14/94 Building Technologies Definitions / Tools

15 Monitor and operate The positions can be selected with < (Enter). The inputs are displayed Outputs can be set via < (Enter) and + /. Exit test mode To exit test mode, press >- (Escape) 2-3 times (depending on the situation). If no further button is pressed for 5 minutes, the controller automatically reassumes Normal mode and all physical outputs are switched back. Building Technologies Definitions / Tools /94

16 3 Select communications mode As said in Section 1, RXL room controllers can be integrated in DESIGO or used in conjunction with Synco. Note The factory setting of all controllers and the basic setting of the tools is 0 (for DESIGO). This minimizes the bus load. Exception: ACS Service changes the setting immediately to 1 (for Synco). ACS Service The ACS service tool is used in Synco networks. It automatically selects the correct communications. HandyTool Setting Mode *006 Communication mode 0 for DESIGO 1 for Synco 3.1 Address zones for Synco This section applies only to Synco. Zone addresses must be allocated in cases where RXL controllers are used together with Synco. These must be defined together with the Synco devices at the planning stage. The zones to be defined are: Geographical zone (Apartment. Room. Subzone) Apartment = ---, Room = ---, Subzone = ---, Zone in which an RXL controller is located. Other roomspecific devices may also be located in this zone. The designations "Apartment, Room and Subzone do not need to be taken literally. For example, Apartment can be used to refer to a group of rooms, floor, or section of a building. Room, however, really does refer to a room.. Subzone is unlikely to be used much for HVAC devices it is more relevant to other disciplines such as lighting (keep the setting 1). Time switch zone (Apartment. Room. Subzone) Apartment = ---, Room = ---, Subzone = ---, This zone has the same structure as the geographical zone. It indicates the source of the schedule for the RXL controllers. The same zone must also contain a device to provide the schedule (e.g. a Synco RMx7xx or RMB795). In a Synco network, Room and Subzone must always be set to 1. 16/94 Building Technologies Select communications mode

17 Refrig distr zone cooling surface Zone = ---, Chilled water-specific information of a chilled ceiling is exchanged within this zone (e.g. cooling demand). This zone also includes a Synco device to process the information (e.g. RMU7xx or RMB7xx). Heat distr zone heating surface Zone = ---, Hot water-specific information of a radiator is exchanged within this zone (e.g. heating demand). This zone also includes a Synco device to process the information (e.g. RMU7xx or RMB7xx). Outside temperature zone The outside temperature is exchanged in this zone (all Synco 700 devices). Zone = ---, Master/slave zone (Apartment. Room. Subzone) Apartment = ---, Room = ---, Subzone = ---, In cases where RXL controllers are to be operated in master/slave mode, a master/slave zone must also be defined. For the master, it is usual to enter the geographical zone of the master. The same master/slave zone is used for the slave as for the master. See also "Master/slave", page 64. Building Technologies Select communications mode /94

18 ACS Professional The zones are defined under Communication. Reduce bus load Individual zones can also be disabled via command if they are not being used. This has the advantage of reducing the load on the bus. HandyTool See the parameter in the last column of the following table. Short name Basic setting Parameter Geogr zone (ap) 1 (out of service) *008 Geogr zone (room) 1 *009 Geogr zone (subz) 1 *010 T'swi zone (apartm) 1 *011 TS zone (room) 1 *012 TS zone (subzone) 1 *013 Heat distr zone 1 (out of service) *016 Refrig distr zone 1 (out of service) *017 Outside temp zone 1 *018 Notes Value 0 means broadcast and is thus not allowed. If the geogr zone or a TS zone has value = -1 for one of the three values, the entire zone is out of service. 18/94 Building Technologies Select communications mode

19 3.2 RXL application example with RMB795 for geographical and time switch zones The room group philosophy is applied to the following example. This example uses FNC applications. CLC and RAD applications, however, apply the same principle. Building floor plan The building has three stories used by different companies for their headquarters. The following companies rent offices on the third floor: Company Sport AG with conference room and two offices. Company Logistics GmbH with 6 offices and 1 meeting room. User requirements / operating modes Each of the two companies wants to operate their room groups at different operating modes, i.e. with the following separate items: Schedules. Setpoints. Fire and smoke extraction functions. Floor plan, third floor The following example shows the rooms on the third floor for the two companies Logistics Ltd and Sport Ltd: D: 101 G: D: 102 G: D: 103 G: D: 104 G: D: 105 G: Conference room D: 114 G: Conference room Reception Office RMB795 Logistics Ltd 304 Office D: 106 G: D: 113 G: D: 112 G: Office 308 Sport Ltd D: 111 G: Office 307 D: 110 G: Office 306 D: 109 G: D: 107 G: Office D: 108 G: Z03en Key D = Device address, G = Geographical zone (Apartment. Room. Subzone). Building Technologies Select communications mode /94

20 Two room groups for Sport AG Let us know look at the floor plan for company Sport AG. The company required separation of the rooms into two room groups or two geographical zones (apartm) as follows: Conference room (room group 1). All other offices (room group 2). The RXL room controllers were entered in the floor plan, and the addresses assigned accordingly: x x x x x x x x Conference Room group 1 SA EA Enable Setpoint prio Relay 1 2 Q Q Conference room D: 114 G: RMB795 D: 113 G: Sport Ltd 308 Office Office D: 112 G: D: 111 G: D: 110 G: Z04en x x x x x x x x Office Raumgruppe Room group 2 2 SA EA Enable Setpoint prio Relay 1 2 Q Q Key D = Device address, G = Geographical zone (Apartment. Room. Subzone). Room group definition On the KNX bus, several rooms are summarized in a room group via geographical zone addressing. This address comprises three parts: Geographical zone: Apartment. Room. Subzone (e.g ) Important! A geographical zone must be assigned: To each RXL room controller. To each room group of the RMB795 control station. Here, all devices to be part of the same room group must have the same apartment number. 20/94 Building Technologies Select communications mode

21 Settings on the control unit The RMB795 control unit only allows for setting the room group, i.e. the geographical zone (apartment). The room and subzone are fixed (room = 1, subzone = 1). To set the room group at the control unit, the following applies: Room group = Geographical zone (apartment. 1. 1). Room controller settings The following settings are available in the RXL room controllers: Geographical zone (apartment). Geographical zone (room). Geographical zone (subzone). For HVAC applications with RXL room controllers, use only the geographical zone (apartment) and the geographical zone (room). Extending the address by the geographical zone (room) results in room control by means of RXL room controllers. This in turn allows for individual operating interventions (from an operator unit and the control unit via the bus) such as room setpoint correction in any room or on any device. Meaning of subzone For additional division of the geographical zone (room), the RXL room controller offers the geographical zone (subzone). This subzone can be meaningful in lighting installations, e.g. if a geographical zone (room) must be subdivided into two subzones "lighting along window" and "lighting along hallway". For HVAC applications, keep the subzone at = 1. Meaning of supplementary labelsthe supplementary labels "apartment", "room" and "subzone" are predefined by Konnex. However, apartment does necessarily denote an actual apartment. Device address Each bus member requires an individual device address, entered in the floor plan above with D:11x. The device address in our example was assigned based on the bus topology. Building Technologies Select communications mode /94

22 3.3 Implement application example Procedure for planning The Synco TM planning and commissioning protocol C3127 enables you to clearly draw plant and necessary communication settings. Proceed as follows: 1. Enter general information such as plan name, device name, device types, applications, etc.. 2. Copy the device addresses for the bus members along with the basic settings for communication from the building floor plan. 3. Enter the geographical zone addresses as per the defined groups. Example for Sport Ltd. The following example shows the completed protocol for the plant of Sport AG: Information 1 Basic settings 2 Room / Room group 3 Possible settings RMU RMH RMK OZW RMB RXB QAW Plant Sport Ltd Sport Ltd Sport Ltd Sport Ltd Sport Ltd Sport Ltd Sport Ltd Room number Device name X X X - X X - Reception Conference Reception Office Office Office Office Device type RMU RMH, OZW RMB RXB QAW RMK RMB RMZ RXB.. RMB795 [2] RXB.. RXB.. RXB.. RXB.. Plant type X X X - X X - B FC03 FC03 FC03 FC03 FC03 KNX-ID (Example ID: 00FD000016D5) X X X X X X X Area [ ]. Line [ 1; ]. Device address [1..253;255] X X X X X X X Decentral bus power supply [ Off, On ] X X X - X - - Aus Clock time operation [ Autonomous, Slave, Master ] X X X X X - - Autonom Room group Conference Room group Office Remote setting chlock slave [ No, Yes ] X X X X X - - Nein Apartment = 1 Apartment = 2 Remote reset of fault [ No, Yes ] X X X - X - - Nein Geographical zone (Apartment.Room.Subzone) (A.R.S) [ ].[ ]. [1] X 2 2X X - 10X X.X.1 X (with own room sensor) X 1 2X X - - X X X ---- X X X Time switch operation [ Autonomous, Slave, Master ] X 1 2X X Time switch slave (apartment) [ ] X 1 2X X - - X Temperature control [ Master, Slave ] X - Master Master Master Master Master * Control strategy [ Caskade, Constant, Alternating ] X ** Combination of room control [ Master, Slave external setpoint, Slave internal setpoint ] - 2X X Room group (name) X - - Conference Office QAW operation zone (apartment) [ ---, ] X - - Implementation upon commissioning Upon commissioning, enter the settings for the same-name data points in the devices according to the created list. 22/94 Building Technologies Select communications mode

23 3.4 Heating and cooling demand zones The above described building is equipped with Synco controllers on the generation side. Bus (TP1) RMH760 RMH760 RMB795 RXL... RXL... RXL... Controller 1 Controller 2 Controller 3 Controller 4 Controller 5 Controller Z05en 2 T T T T 1 Heat source DHW heating Heating circuit fan coil Fan coil room A Fan coil room B Fan coil room C Heat requistion Heat demand Heat requistion Heat demand Heat demand Heat demand Heat demand Heat distr zone 1 Heat distr zone source side: 1 Setting values Heat distr zone 2 Heat distr zone 2 Heat distr zone 2 Heat distr zone 2 Controller 1 Controller 2 Controller 3 Controller 4 Controller 5 Controller 6 Illustration notes In a typical application, the individual RXL room controllers signal their heat demand direct to the primary controller by bypassing the RMB control unit (to the RMH760 in the above illustration). (1) and (2) stand for the distribution zone numbers. Notes This application can also be applied similarly to refrigeration distribution zones as well as CLC and RAD applications. If not 2-pipe fan coil is selected, heating and refrigeration demand is sent simultaneously to generation. Building Technologies Select communications mode /94

24 4 Applications / Parameters 4.1 Select application Most of the RXL controllers store multiple applications (e.g. RXL24.1/CC-02 with CLC01, CLC02 and RAD01). The tool allows you to select the required application. HandyTool Setting Application *005 Plant type 1 CLC01 (CC-02) 2 CLC02 (CC-02) 3 RAD01 (CC-02) 4.2 Parameter settings The following sections describe how to set parameters. 24/94 Building Technologies Applications / Parameters

25 5 Room operating modes 5.1 Description The operating modes in DESIGO RXL are Comfort, Precomfort, Economy and Protection. In addition, the controller has a frost Protection limit, at which an alarm can be triggered. Each room operating mode has separately adjustable heating and cooling sequence setpoints. Y [%] Heating Cooling TR 10385D01 Comfort Precomfort Economy Protection Frost risk Y TR Output signal (valve or damper actuator). Room temperature. Comfort Precomfort Economy Protection Risk of frost limit Comfort is the room operating mode in an occupied room. The room temperature is within the Comfort range. The room controller operates in the heating or cooling sequence with the resultant Comfort setpoints. In Precomfort room operating mode (in an unoccupied room), control uses setpoints that are slightly under the Comfort setpoint for heating and slightly above for cooling. Comment: Since Standby is used in standardization specifically for boiler standby, we now use the term Precomfort for the room operating mode. (Exception: The switching state in the schedule room occupancy is still referred to as Standby). If a room is unoccupied for an extended period of time (e.g. night setpoint via schedules, see pages 28, 37), energy supply to the room can be reduced significantly. In the Economy room operating mode, control uses setpoints that are slightly under the Precomfort setpoint for heating and slightly above for cooling. If the building is unoccupied over an extended period of time (e.g. vacation), the temperature setpoints can be reduced or raised so that the building and all equipment are protected against heat or cold at any time. If the room temperature drops below the risk of frost limit value, an alarm is triggered that can be further proceeds in the building automation and control system. The room controller continues to operate at the relevant setpoint (e.g. Protection, Economy, etc.). The alarm value in the controller is set to 5 C. Building Technologies Room operating modes /94

26 5.2 Overview Section 0 Section 5.4 Section 5.5 DESIGO Synco Stand-alone Central (ACS) Central Local Controller Window contact DI Prio 1. Central Local (Synco controller) Window contact DI Controller Prio Local Controller Window contact DI Prio Building use Bus 2. Enable Comfort Bus 2. Occupancy Bus 3. Bus 3. Presence detector DI DI 3. DI 3. Room unit PPS2 3. PPS2 3. PPS Z54en Protection Room operating mode Presence detector Presence detector Room unit Room unit 26/94 Building Technologies Room operating modes

27 5.3 Determine the room operating mode with DESIGO The Effective room operating mode of the room controller depends on the central schedules for Use and Occupancy and/or on local influences such as window contacts, presence detectors, or room units. The illustration below shows how these influences are processed by the room controller along with their priority: Central Local Controller 10784Z55en Window contact DI Prio 1. Building use Bus 2. Occupancy Bus 3. Presence detector DI Room unit PPS2 3. STOP Note! The effects of Priority 1 and Priority 2 are similar in nature to states, which apply continuously The influence of priority 3 is treated as event. The key point in time is the moment at which the state changes (edge). If another source of third priority later changes the state, the last known change is valid. Building Technologies Room operating modes /94

28 5.3.1 Local control of room operating mode via a window contact Central Local DI Controller Prio If a window is opened, the room controller always switches to room operating mode Protection, i.e. the heating or cooling output is reduced to a minimum. If a window is opened outside the building-in-use period, it is possible to, e.g., trigger an additional alarm in the building automation and control system. DI PPS2 3. The window contact is connected directly to a digital input of the room controller (see page 68). Effective room operating mode The table below shows the Effective room operating mode as a function of the window contact input. Window contact status Window closed Window open Effective room operating mode No effect. Lower-priority inputs determine the operating mode. Protection. Note Master/slave applications: Window contacts connected to the slave controllers are NOT taken into account Central control of room operating mode via input from the Use schedule Central Local DI Controller Prio 1. This schedule determines the overall period of time for which the entire building is in use. Typically, it is used for night setback throughout the building or for long periods when the building is not in use. DI When the building is not used, interventions of third priority are disabled. This prevents demand signals from being sent to the primary plant when e.g. a security guard enters a room. PPS /94 Building Technologies Room operating modes

29 Effective room operating mode The table below shows the three possible occupancy states and the resulting Effective room operating mode. Switching state Description Effective room operating mode Building in use Building not in use Protection Full availability of all plants. Building enabled for use. Priority 3 influences are enabled (schedule occupancy, presence detector, room unit, and Temporary Comfort mode). Reduced availability of the plants. Priority 3 influences are disabled (schedule occupancy, presence detector, room unit, and Temporary Comfort mode). Application: For temporary vacancy. The building must reach the Comfort temperature within hours. Setpoints are at levels required to protect the building. Priority 3 influences are disabled (schedule occupancy, presence detector, room unit, and Temporary Comfort mode). Application: Extended building vacancy. According to schedule occupancy, presence detector, or room unit Economy Protection Central and local control of room operating mode based on occupancy Central Local DI Controller Prio The Effective occupancy is determined by the occupancy schedule and the presence detector. It controls the room operating mode of a room controller while the building is in use. 3. DI PPS2 3. Occupancy schedule The central time schedule transmits the anticipated occupancy of a room or group of rooms. It controls the room operating mode of a room controller while the building is in use. Outside the building-in-use period, the time schedule is disabled. The time schedule can be used, e.g. by a building tenant to specify occupancy times of his or her rooms. Building Technologies Room operating modes /94

30 The occupancy schedule has three possible states: State Occupied Standby Unoccupied Description Occupancy expected. Room controller switches to Comfort. Occupancy is probable; the room must be ready for use shortly (Comfort temperature). Room controller switches to Precomfort. No occupancy expected. Room controller switches to Economy. Presence detector A presence detector detects the presence of people in a room. It controls the room operating mode of a room controller while the building is in use. Outside the building-in-use period, it is disabled. The presence detector has two states: State Occupied Unoccupied Description Room is occupied. Room controller switches to Comfort. Room is not occupied. Room controller switches to Economy or Precomfort. Note Master/slave applications: Presence detectors connected to the slave controllers are NOT taken into account. Effective occupancy The table below shows Effective occupancy as a function of the occupancy time schedule and the presence detector. Rule: Occupied takes precedence over unoccupied. If either the schedule or the presence detector transmits occupied, the room is occupied. Presence detector Occupancy schedule Effective occupancy No presence detector No schedule. Occupied. Occupied. Occupied. Standby. Standby. Unoccupied. Unoccupied. Unoccupied No schedule. Unoccupied. (no people Occupied. Occupied. present). Standby. Standby. Unoccupied. Unoccupied. Occupied No schedule. Occupied. (people present). Occupied. Occupied. Standby. Occupied. Unoccupied. Occupied. 30/94 Building Technologies Room operating modes

31 Effective room operating mode The Effective room operating mode can be changed by the Effective occupancy only during the building-in-use period (defined by the Use schedule). The change in the Effective room operating mode is event-driven at exactly the time when the Effective occupancy changes. The room unit or Temporary Comfort mode (both priority 3) can cause the Effective room operating mode to change again last command wins. Effective occupancy Occupied. Standby. Unoccupied. Effective room operating mode Comfort. Precomfort. Economy. Key: Occupied means: "changes to occupied ". Presence detector The presence detector is connected directly to a digital input on the room controller (see page 68) Central control of room operating mode via room operating mode schedule DESIGO does not support this type of schedule. If nevertheless used, the room controller may produce errors Local control of room operating mode with a room unit Room unit Central Local DI Controller Prio The /Auto button on the room unit can be used like a presence button. The room user can raise or reduce the room temperature. 3. DI PPS2 3. The room unit is connected to the PPS2 interface on the room controller. It displays the Effective room operating mode in a simplified form, and can also be used to change it. State Auto Description Effective room operating mode is Comfort. Reduced operation in the room, dependent on priority 1, 2 and 3 influences. The Effective room operating mode is Precomfort, Economy, or Protection (3 rd priority:: Last one wins). Building Technologies Room operating modes /94

32 Effective room operating mode The Effective room operating mode on the room unit can be changed only during the building-in-use period (Use schedule). The change in the Effective room operating mode is event-driven, the event being the moment when the button on the room unit is pressed. The Effective occupancy or Temporary Comfort mode (both priority 3) can cause the Effective room operating mode to change again last command wins. The table below shows the effect of the mode of the room controller. /Auto button on the Effective room operating Existing Effective room op. mode Room unit display Manual operation of /Auto button New Effective room operating mode Comfort Auto Precomfort if Effective occupancy = occupied or standby. Economy if Effective occupancy = unoccupied. Precomfort Auto Comfort Economy Auto Comfort for Temporary Comfort period 1) Protection Auto Protection, unchanged. Key: Auto means: "changes to Auto ". 1) Comfort mode is active for the predefined Temporary Comfort period (see page 68). The room controller then returns to Economy DESIGO examples The following examples show two typical applications of schedules and local control of the room operating mode. Example 1 Rooms without room unit or presence detector The room operating mode of rooms 1 3 in a building is determined by the two schedules Use and Occupancy. Window contacts are installed in all rooms. The following conditions are specified: The building is in use from to (Use schedule). Outside this period the opening of a window trips an alarm (2). Rooms are used by the same tenant and are controlled by the common schedule occupancy: Night setback is between to 8.00 (not occupied), lunch between and (standby). In Room 3, the window is opened briefly once in the morning and once at night (1). 32/94 Building Technologies Room operating modes

33 Schedule Use Building in use 06:00 22: D02 Building not in use Building Protection Schedule occupancy Room Occupied. 08:00 12:00 13:00 17:00 Standby Window contact Room 3 Unoccupied. Effective room operating mode Room 3 Window open Window closed 1) 1) Comfort Precomfort Economy Protection 2) Example 2 Rooms with a room unit ( /Auto button) or presence detector The room operating mode in rooms 1 and 2 of a building is determined centrally by the Use and Occupancy schedules. The RoomOccupancy schedule defines the period during which both rooms must be available (standby). Comfort room operating mode is then initiated locally via the room unit (room 1) or presence detector (room 2). The following conditions are specified: The building is in use from to (Use schedule). Rooms 1 and 2 must be available from to (room occupancy schedule: standby). The occupants of Room 1 continue working in the evening beyond the programmed occupancy period. At the end of the programmed period of occupancy, the room operating mode changes to Economy even if the room unit is set to Auto (1). Comfort mode can now be reactivated with the Auto switch on the room unit (2). Comfort remains active for the set Temporary Comfort mode period (see page 68). At the end of the building-in-use period, however, the Temporary Comfort mode period is overridden and the room controller returns to Economy mode (3). Room 2 is occupied in the evening beyond the building-in-use period (4). However, at the end of the building-in-use period, the room operating mode still changes to Economy. An alarm can be triggered if required. Building Technologies Room operating modes /94

34 Schedule Use Schedule occupancy Room 1 and 2 Building in use Building not in use Building Protection Occupied Standby Unoccupied 10385D03 06:00 22:00 08:00 18:00 / Auto button on room unit Room 1 Effective room operating mode Room 1 Auto Comfort 1) 2) 3) Precomfort Economy 1) 2) 3) Protection Presence detector Room 2 Effective room operating mode Room 2 Occupied Unoccupied Comfort Precomfort 4) 4) Economy Protection 34/94 Building Technologies Room operating modes

35 5.4 Determine the room operating mode with Synco The Effective room operating mode of the room controller depends on the central room operating mode schedule and/or on local influences such as window contact, presence detector, or room unit. The illustration below shows how these influences are processed by the room controller along with their priority: Central (ACS) Central (Synco controller) Local Window contact DI Controller Prio Z57en Enable Comfort Bus Room operating mode Bus Protection Presence detector DI 3. Room unit PPS2 3. STOP Note! If the room operating mode in the ACS (operating booklet) is AUTO, the priorities 1 to 3 apply. If the room operating mode in the ACS (operating booklet) is Comfort, Precomfort, Economy or Protection, these modes have absolute priority ("Prio 0"). The effects of Priority 1 and Priority 2 are similar in nature to states, which apply continuously The influence of priority 3 is treated as event. The key point in time is the moment at which the state changes (edge). If another source of third priority later changes the state, the last known change is valid. Building Technologies Room operating modes /94

36 5.4.1 Local control of room operating mode via window contact input Window contact Central (ACS) Central (Synco controller) Local Controller Prio 0. If a window is opened, the room controller always switches to room operating mode Protection, i.e. the heating or cooling output is reduced to a minimum. DI DI 3. PPS2 3. Effective room operating mode The table below shows the Effective room operating mode as a function of the window contact input. Window contact state Window closed Window open Effective room operating mode No effect. Lower-priority inputs determine the operating mode. Protection. The window contact is connected directly to a digital input of the room controller (see page 68). Note Master/slave applications: Window contacts connected to the slave controllers are NOT taken into account Central room operating mode control via Enable Comfort Central (ACS) Central (Synco controller) Local DI Controller Prio A central operator station can use the enable Comfort input to specify whether the room operating mode can be switched to a higher mode than Economy, i.e. if priority 3 influences (room operating mode input, presence detector, room unit) are enabled However, the room controller can be used to force enabling of priority 3 influences via local Comfort mode by ignoring enable Comfort. DI 3. PPS2 3. The presence detector is connected directly to a digital input of the room controller (see page 68). Note Master/slave applications: Presence detectors connected to the slave controllers are NOT taken into account. 36/94 Building Technologies Room operating modes

37 The possible states are: State Enabled Disabled Description Priority 3 influences (room operating mode input, presence detector, room unit) are enabled. Priority 3 influences are disabled. The effective room operating mode is Economy. Comfort and Precomfort are enabled locally in the controller with the following parameter in the Room unit menu on page 74. Parameter: Local Comfort mode Description HandyTool Change from Economy to Precomfort or Comfort mode. *105 Enabled (basic setting) 1 Precomfort or Comfort can be disabled via the Enable Comfort input. Disabled (ignore Enable Comfort input). Precomfort or Comfort CANNOT be disabled via the Enable Comfort input Central control of room operating mode via room operating mode input Local Central (ACS) Central (Synco controller) DI Controller Prio RXL controllers can be controlled by Synco controllers via Room operating mode. 3. DI 3. PPS2 3. Switch state Room operating mode Comfort Precomfort Economy Protection Description Effective room operating mode of room controller Comfort Precomfort Economy Protection Priorities The room operating modes Comfort, Precomfort and Economy have priority 3 fro the room controller, i.e. they can be changed by a presence detector or room unit. The Protection room operating mode has priority 1, i.e. presence detector and room units are disabled. Building Technologies Room operating modes /94

38 5.4.4 Local control of room operating mode via presence detector Presence detector Central (ACS) Central (Synco controller) Local Controller Prio 0. A presence detector detects the presence of people in a room. DI DI 3. PPS2 3. The presence detector is connected directly to a digital input of the room controller (see page 68). Note Master/slave applications: Presence detectors connected to the slave controllers are NOT taken into account. Effective room operating mode The table below shows the two possible occupancy states and the resulting Effective room operating modes. Switching state Occupied (people enter room) Unoccupied (people leave room) Effective room operating mode Comfort Precomfort if room operating mode = Comfort or Precomfort Economy if room operating mode = Economy Key: Occupied means: "changes to occupied " Local control of room operating mode with a room unit Room unit Central (ACS) Central (Synco controller) Local Controller Prio 0. The /Auto button on the room unit can be used like a presence button. The room user can enable or disable HVAC control. DI DI 3. PPS /94 Building Technologies Room operating modes

39 The room unit is connected to the PPS2 interface on the room controller. It displays the Effective room operating mode in a simplified form, and can also be used to change it. State Auto Description Effective room operating mode is Comfort. Reduced operation in the room, dependent on priority 1, 2 and 3 influences. The Effective room operating mode is Precomfort, Economy, or Protection. Effective room operating mode The change in the Effective room operating mode is event-driven at the moment when the button on the room unit is pressed. The Effective occupancy can cause the Effective room operating mode to change again last command wins. The table below shows the effect of the mode of the room controller. /Auto button on the Effective room operating Existing Effective room op. mode Room unit display Manual operation of /Auto button New Effective room operating mode Comfort Auto Precomfort if room operating mode from schedule = Comfort or Precomfort. Economy if room operating mode from schedule = Economy. Precomfort Auto Comfort. Economy Auto Comfort for Temporary Comfort period 1). Protection Auto Protection, unchanged. Key: Auto means: "changes to Auto ". 1) Comfort mode is active for the predefined Temporary Comfort period (see page 68). The room controller then returns to Economy Synco examples The following examples show two typical applications of the schedule program and local control of the room operating mode. Example 1 Rooms without room unit or presence detector The room operating mode in Rooms 1..3 of a building is determined by the room operating mode schedule. Window contacts are installed in all rooms. Building Technologies Room operating modes /94

40 The following conditions are specified: Overall, the building is in use from to The rooms are used and controlled by the room operating mode schedule as follows: Night setback from to 08.00, Protection from to Lunch from to (Precomfort). In Room 3, the window is opened briefly once in the morning and once at night (1). Room operating mode schedule Comfort Precomfort 06:00 08:00 12:00 13:00 17:00 20: D04 Economy Protection Window contact Room 3 Window open Window closed 1) 1) Effective room operating mode Room 3 Comfort Precomfort Economy Protection Example 2 Rooms with room unit ( /Auto button) or presence detector The room operating mode in rooms 1 and 2 of a building is determined centrally by the room operating mode schedule. Comfort room operating mode is then initiated locally via the room unit (room 1) or presence detector (room 2). The following conditions are specified: The building is in use from to (Protection from to 06.00). Rooms 1 and 2 must be available from to (Precomfort). The occupant(s) of room 1 are working overtime. At 18.00, the room operating mode changes to Economy, even if the room unit is set to Auto (1). Comfort mode can now be reactivated with the Auto switch on the room unit (2). Comfort remains active for the set Temporary Comfort mode period (see page 68). In Protection mode, however, the Temporary Comfort period is also overridden and the room operating mode changes to Protection (3). Room 2 is occupied in the evening beyond the building-in-use period (4). However, at the end of the building-in-use period, the room operating mode still changes to Protection. An alarm can be triggered if required. 40/94 Building Technologies Room operating modes

41 Room operating mode schedule Comfort Precomfort Economy Protection 10385D05 06:00 08:00 18:00 20:00 Room with room unit / Auto Taste am Raumgerät Room 1 Auto 1) 2) 3) Effective room operating mode Room 1 Comfort Precomfort Economy 1) 2) 3) Protection Room with presence detector Presence detector Room 2 Occupied Unoccupied 4) Effective room operating mode Room 2 Comfort Precomfort Economy Protection 4) 41/94 Building Technologies Room operating modes

42 5.5 Determine the room operating mode without a bus (stand-alone) If no bus is connected, the Effective room operating mode of the room controller depends on the local influences such as window contact, presence detector or room unit. The illustration below shows how these influences are processed by the room controller along with their priority: Local Window contact DI Controller Prio 1. Presence detector DI 3. Room unit PPS Z58 STOP Important! The influence of priorities 1 and 2 is equivalent to permanent states. The influence of priority 3 is treated as event. The key point in time is the moment at which the state changes (edge). If another source of third priority later changes the state, the last known change is valid. Note If there is no bus connection, the controller assumes the following defaults: Use = Building in use. Occupancy = Occupied. 42/94 Building Technologies Room operating modes

43 5.5.1 Local control of room operating mode via a window contact input Window contact Local Controller DI Prio 1. If a window is opened, the room controller always switches to room operating mode Protection, i.e. the heating or cooling output is reduced to a minimum. DI 3. PPS2 3. The window contact is connected directly to a digital input of the room controller (see page 68). Effective room operating mode The table below shows the Effective room operating mode as a function of the window contact input. Window contact state No window contact Window closed Window open Effective room operating mode Comfort (default) No effect. Lower-priority inputs determine the operating mode. Protection Local control of room operating mode via presence detector Presence detector Local DI Controller Prio 1. A presence detector detects the presence of people in the room and controls the room operating mode of a room controller. DI 3. PPS2 3. The presence detector is connected directly to a digital input of the room controller (see page 68). Building Technologies Room operating modes /94

44 Effective room operating mode The change in the Effective room operating mode is event-driven at exactly the time when the Effective occupancy changes. The room unit (which is also priority 3) can cause the Effective room operating mode to change again last command wins. Presence detector No presence detector Unoccupied (people leave room). Occupied (people enter room). New Effective room operating mode Comfort (default) Economy. Comfort Key: Occupied means: "changes to occupied " Local control of room operating mode with room unit Room unit Local DI Controller Prio The /Auto button on the room unit can be used like a 1. presence button. The room user can enable or disable HVAC control. DI 3. PPS2 3. The room unit is connected to the PPS2 interface on the room controller. It displays the Effective room operating mode in a simplified form, and can also be used to change it. State Auto Description Effective room operating mode is Comfort. Reduced operation in the room, dependent on priority 1 or 3 influence: Effective room operating mode is Precomfort, Economy or Protection. Effective room operating mode The change in the Effective room operating mode is event-driven at the moment when the button on the room unit is pressed. The presence detector (which is also priority 3) can cause the Effective room operating mode to change again last command wins. 44/94 Building Technologies Room operating modes

45 The table below shows the effect of the mode of the room controller. /Auto button on the Effective room operating Existing Effective room op. mode Room unit display Manual operation of /Auto button New Effective room operating mode Comfort Auto Precomfort if Effective occupancy = Occupied. Economy if Effective occupancy = Unoccupied. Precomfort Auto Comfort. Economy Auto Comfort for Temporary Comfort period 1). Protection Auto Protection, unchanged. Key: Auto means: "changes to Auto ". 1) Comfort mode is active for the predefined Temporary Comfort period (see page 68). The room controller then returns to Economy Example for stand-alone The example below shows how local influences interact to affect the room operating mode. Window contacts are installed in all rooms. If the window is opened (1), the room operating mode changes to Protection and the room unit is switched again to. Room 1 has a room unit. As no presence detector is connected, the basic room operating mode is Precomfort and the timer (Temporary Comfort mode time, see page 68) is thus not available. The room unit allows for switching between Precomfort and Comfort (2). Room 2 has a room unit and a presence detector. If unoccupied, the basic room operating mode is Economy; if occupied, the room operating mode changes to Comfort (3) and the room unit is set to Auto. The room unit allows for switching between Comfort and Precomfort (2). Room 3: To force the basic room operating mode Economy, a presence detector in state unoccupied is simulated at an open digital input (occupied = contact closed, see page 68). The timer is available from Economy. The room has a room unit on which the timer is activated (Temporary Comfort mode period: see page 68). This is where the room operating mode is set to Comfort (2); when the window is opened (3), after timer expiration (4), or after pressing again the /Auto button (5), the room operating mode returns to Economy. Building Technologies Room operating modes /94

46 Window contact Room 1 Window open Window closed 1) 1) 10385D70 / Auto button on room unit Room 1 Auto 2) 2) 2) 2) Comfort Effective room operating mode Room 1 Precomfort Economy Protection Window contact Room 2 Window open Window closed 1) 1) 10385D71 Presence detector Room 2 Occupied Unoccupied 3) / Auto button on room unit Room 2 Auto 2) 2) Effective room operating mode Room 2 Comfort Precomfort Economy Protection Window contact Room 3 Window open Window closed 1) 1) 10385D72 / Auto button on room unit Room 3 Auto 2) 2) 2) Effective room operating mode Room 3 Comfort Precomfort 3) 4) 5) Economy Protection. 46/94 Building Technologies Room operating modes

47 6 Setpoint calculation 6.1 Description Each room controller knows 9 different room temperature setpoints: One heating and cooling setpoint each for the room operating modes Comfort, Precomfort, Economy, and Protection as well as Frost risk limit value. The setpoints are: Defined in the tool during engineering. Adjusted during runtime by the communication objects (DESIGO, Synco). This does not apply to Protection setpoints and Risk of frost limit values (page 25). The setpoints are shifted: Centrally via KNX bus from the building automation and control system (only Comfort, Precomfort and Economy). Locally via PPS2 by a room unit or a setpoint adjustment unit (only Comfort and Precomfort). The controller controls the values internally to ensure that sensible periods are adhered to between the various room operating modes. The result are 8 present setpoints. The Effective room operating mode selects one value each for heating and cooling from the 8 setpoints. These are the effective setpoints used by the controller. Define Shift Tool 6.2 Runtime 6.3 Centrally 6.4 Locally 6.5 BUS Comfort heating setpoint Comfort cooling setpoint BUS PPS2 BUS 10785Z40en Precomfort heating setpoint Precomfort cooling setpoint Central setpoint shift heating Central setpoint shift cooling Local setpoint shift Economy heating setpoint Economy cooling setpoint Protection heating setpoint Protection cooling setpoint Frost setpoint 8 present setpoints H C BUS PPS2 DI Effective room operating mode Effective heating setpoint SpH Effective cooling setpoint SpC Building Technologies Setpoint calculation /94

48 6.2 Setpoint settings with the tool A tool is used to set the temperature setpoints for the room operating modes in each room controller. ACS Service The setpoints can be modified under Room temp setpoints: HandyTool See the parameters in the last column of the following table. Setpoints Name Basic setting Range 1) Resolution Parameter Protection cooling setpoint 40 C C 0.5 K *030 Economy cooling setpoint 35 C C 0.5 K *031 Precomfort cooling setpoint 28 C C 0.5 K *032 Comfort cooling setpoint 24 C C 0.5 K *033 Comfort heating setpoint 21 C C 0.5 K *034 Precomfort heating setpoint 19 C C 0.5 K *035 Economy heating setpoint 15 C C 0.5 K *036 Protection heating setpoint 12 C C 0.5 K *037 1) ACS checks the values / ranges for intersection. HandyTool: If setpoints are irrelevant for the application (e.g. heating setpoints for chilled ceiling), they are hidden, and they are set equal to the Protection setpoints internally. 48/94 Building Technologies Setpoint calculation

49 6.3 Setpoint setting runtime If a DESIGO RXL controller is integrated into a DESIGO system or operated in conjunction with a Synco plant, the central operator station can adjust the setpoints. STOP Note! EEPROM service life The setpoints are stored in the EEPROM so that they are retained when the controller is reset. If a value different from a previous value is received on the communication objects setpoints for heating and setpoints for cooling, a write process is triggered in the EEPROM. The service life of the EEPROM depends on the number of Write cycles. STOP Important! Setpoints changed by a tool (e.g. HandyTool) are overwritten by PX-KNX during room controller startup! 6.4 Central setpoint shift Management station Summer/winter compensation Internal correction by controller The Comfort, Economy and Precomfort setpoints can be adjusted separately for heating and cooling centrally from the BACS. Central setpoint shifts are used particularly e.g. for summer/winter compensation. Summer/winter compensation causes a gradual increase in room temperature as a function of the outside temperature. This prevents too great a difference between the indoor and outdoor temperature in summer and increases overall comfort in winter. Normally, only Comfort and Precomfort values are shifted. The room controller corrects the setpoints resulting from central shift by applying the following rules Comfort setpoints: The value for the spacing must not be below the original value A. Precomfort setpoints: The value for the spacing to Comfort setpoints must not be below the original values B. Example Setpoints Protection cooling Economy cooling Precomfort cooling Comfort cooling Comfort heating Precomfort heating Winter compensation Original Summer compensation values Sp [ C] B A Economy heating Protection heating 10385D107 T OA Building Technologies Setpoint calculation /94

50 6.5 Local setpoint shift If setpoints are shifted locally and corrected by the controller, local shift is applied. Two methods are available for local setpoint shift: Using a series QAX... room unit (local PPS bus) providing a rotary button or rocker switch to adjust the room temperature setpoint or via EIB/KNX bus. If multiple sources command local setpoint shift, "last one wins" applies. Function Comfort: The Comfort setpoints for heating and cooling are shifted in parallel A. The original spacing heating cooling is maintained. Internal correction by controller The room controller corrects the setpoints as follows following a local shift: Precomfort:: The values are shifted in parallel to the Comfort values B. The cooling setpoint cannot be lowered following central shift C. The heating setpoint cannot be increased following central shift C. Economy: The cooling setpoint cannot be lowered following central shift C. The heating setpoint cannot be increased following central shift C. The value is shifted together with the Precomfort value D. Protection: Protection values are absolute E. A minimum spacing between Comfort heating and Comfort cooling of 0.5 K is maintained F. Setpoints Sp [ C] E Protection cooling D Economy cooling Precomfort cooling C B F 0.5 K Comfort cooling A Comfort heating Precomfort heating Economy heating Protection heating F 0.5 K D C 10385D Local setpoint shift Offset [K] Note Upon a change from Comfort and Precomfort to Economy or Protection, the setpoint shift can be reset (see page 73). 50/94 Building Technologies Setpoint calculation

51 7 Temperature measurement 7.1 Room temperature measurement Sources The value valid for temperature control can originate in various sources: A room unit via PPS An analog sensor via analog input B Mean value of several sensors Invalid temperature If none of these sources supplies a valid room temperature, the following will happen: the controller uses the mean value from the effective heating and cooling setpoints for control until a valid measured value is again received the controller issues an alarm "Room temp. sensor error" if slaves are connected, they receive an invalid temperatur ( C) if a room unit is connected to a slave, the slave uses the temperature value of its room unit when two heartbeat periods have elapsed Local temperature sensor at PPS2 interface QAX3... PPS2 (CP+, CP-) If a QAX room unit (with PPS2 interface) is connected to the controller, the room temperature is measured by the temperature sensor integrated in the room unit. RXB Z Local temperature sensor at analog input QAA24 B1 Alternatively, an LG-Ni1000 sensor, type QAA24, can be connected to analog input B1 of the room controller. RXB Z13 The sensors connected to terminal B1 can have different functions: Parameter setting Room Only measured value acquisition No sensor Description Room air sensor (can also be used for averaging together with room unit PPS; see below). Not supported No sensor connected. ACS Service Select General functions, Temperature sensor r B1 (see page 67). Building Technologies Temperature measurement /94

52 HandyTool See the parameters in the last column of the following table. Short name Basic setting Parameter Temperature sensor B1 No sensor *092 Room 1 Only meas val acquisition (not supported) 3 No sensor Averaging analog input & PPS2 interface In large spaces it can be useful to measure the room temperature in two locations and to determine an average value. If both a QAX3 room unit and a QAA24 LG-Ni1000 sensor are connected to a controller, the measured room temperature is automatically based on the average value from both sensors. Automatic detection prevents miscalculation. A QAX34 / QAX84 will display this average value Z14 QAA24 B1 PPS2 (CP+, CP-) QAX3... RXB2... The average value is calculated from the two sensor readings. Note To determine the average value, the sensor must be configured as a room temperature sensor Sensor correction The value of the local sensors (PPS2 and B1) can be corrected in the tools (see page 74). 7.2 Outdoor temperature via bus (CLC02, RAD01) For the CLC02 and RAD01 applications, the outside air temperature must be available as a bus information. In the case of an integration into DESIGO, it is provided by the integration station. In conjunction with Synco, the outside air temperature is sent in a special zone. 52/94 Building Technologies Temperature measurement

53 8 Control sequences 8.1 Radiator (RAD01) The application radiator has a continuous heating sequence. The room controllers operate with a PI algorithm optimized for thermal or motorized valve actuators. (For simplicity, the diagram below only shows the P-control action.) This application can also be used for other heating types, e.g. floor heating. However, the control parameters are not optimized for this. The control sequence comes into operation at the effective setpoints for heating and cooling (see page 47). Y [%] 100 H 0 YH SpH TR [ C] Y TR SpH H YH Output signal Room temperature Effective heating setpoint Heating sequence Heating valve Actuator type selection STOP Note! Directly connected valve actuators All actuators have threads suitable for fitting to both normally-closed (push to open) and normally-open (pull-to-open) valves. However, the RX applications do not support inverse control, which means that only actuators with a pulling action can be used with "pull-to-open" valves and only actuators with a pushing action can be used with "pushto-open" valves. This is why, in RX applications, valves with mounted actuators are always closed when de-energized. Different valve types are available for selection for the radiator: Thermal actuators are controlled by an AC 24 V PDM signal. Motorized actuators are controlled by an AC 24 V 3- point signal. Electromechanical actuators (motors with spring return) have a special PDM algorithm that ensures that 50 position changes per day are not exceeded. This causes a slower control behavior. Thermal and electromechanical actuators, therefore, require one output while motorized actuators require two. The table below shows the possible combinations: Actuator type Thermal Controller RXL24.1 Outputs required Y1 Motorized RXL24.1 Y1 Y2 M Electromechanic (ON / OFF) RXL24.1 Y1 M Building Technologies Control sequences /94

54 Thermal valve actuators If thermal actuators are selected, Y1 / Y2 are always controlled in parallel to ensure that several actuators can be connected at the same time. It is not possible to ensure exact parallel running of more than one thermal valve actuator. If several radiators are controlled by the same room controller, preference should be given to motorized actuators. If thermal actuators must nevertheless be controlled in parallel, third-party thermal must be parameterized regardless of manufacture. This applies also if an external power amplifier is used to drive the actuators. Thermal actuators operate at a raised temperature. To ensure a fast response, the actuators are continuously preheated to a slightly higher temperature (5% 1 s ON / 19 s OFF). They therefore continue to receive pulses from the controller even when closed. Thermal third party devices Electromechanic thirdparty devices Möhlenhoff actuators have been tested successfully in our HVAC laboratory. Electromechanic third-party devices often have different runtimes for opening and closure. For optimal control, the longer of the two runtimes must thus be parameterized. Synchronize When switching on the controller, after parameterization, after switching from test mode to normal mode and for valve protection (unblocking, see page 57), the actuators are synchronized: Thermal heating and cooling valve actuators are controlled for 5 minutes with open (50% 1 s ON/ 1 s OFF), then for 5 minutes with close" (5% 1 s ON/ 19 s OFF). Motorized actuators are opened first (110% runtime) and then closed (110% runtime). The sequence starts after synchronization. 54/94 Building Technologies Control sequences

55 Parameterization ACS Service The actuator type used must be defined at the engineering stage: Select the actuator type from the Sequences menu: HandyTool Parameter Short name Basic setting *063 Actuat h surf valve STA72E Settings STE71 1 SSA81 10 El mech 3 rd party devices 252 STA71 3 SSB81 11 Thermal 3 rd party devices 253 STP71 4 SQS81 12 Motoric 3 rd party devices 254 STA72E 5 SSP81 14 STP72E 6 With motorized actuators (conventional and bus actuators), third-party devices can also be connected. The actuator running time can be adapted and an offset set accordingly. The offset considers the time between the electric pulse and the actual mechanic movement of the actuator. This is especially important for fast running actuators. For electromechanic actuators, the actuator running time can be adapted. For fast actuators, select valve type "Motoric 3rd party devices ". Building Technologies Control sequences /94

56 ACS Service Select the actuator runtime from the Sequences menu: HandyTool See the parameters in the last column of the following table. Parameter Basic setting Range Resolution HandyTool Running time heat surf valve 150 s s 1 s *064 Offset heating surface valve 0 s s 1 s *066 56/94 Building Technologies Control sequences

57 8.1.2 Values representing valve actuator positions In DESIGO integration as well as in conjunction with Synco, the valve actuator positions can be read by the integration station. Reduce bus load The bus load should be reduced by disabling the bus outputs. ACS Service Select Sequences. HandyTool See the parameters in the last column of the following table. Short name Range Basic setting HandyTool Heat surf bus valve 0 = Disabled / Off, Disabled (0) *086 1 = Enabled / On Valve exercising feature To prevent valves from seizing after long periods of inactivity (e.g. heating valve in summer), the valves are operated from time to time. The valve actuators are operated in such a way as to waste as little heating or cooling energy as possible. The valve exercising function is triggered if the valve has been closed for ca. 91 hours without interruption. Building Technologies Control sequences /94

58 8.1.4 Downdraft compensation This function is only active in Comfort mode. In situations where (owing to large internal heat gains) there is no heating demand from the room despite a low outdoor temperature (supplied via bus), large window surfaces can impair indoor comfort (through radiated cold, downward flow of cold air, condensation). Function A radiator located under the window can be used to slow the downward flow of cold air and compensate for cold radiation. To achieve this, the radiator is switched on whenever the outdoor temperature drops below a predefined value (the outside temperature 0% valve position). The maximum heating output (set under Max. valve position) is reached at the coldest outdoor temperature (which can be set under Max. outdoor temperature valve position). Max. valve position 100% Heating output 10385D17en_01 25% Motoric Thermic 0% T OA Outdoor temp. max. valve position Outdoor temp. 0% valve position Note The controller adds the values representing the valve position for downdraft compensation and the valve position for the heating sequence. If the room temperature rises as a result of the downdraft compensation feature, the heating sequence reduces the opening of the associated valve, so correcting the room temperature. When the sequence reaches zero, the room temperature is increased by the residual heat from the downdraft compensation feature. Controller output LTHW radiators with motorized valve actuators LTHW radiators with thermal valve actuators Note The heat output calculated by the controller is achieved as follows: The valve is opened to the heat output value [%]. The minimum heat output is 25% (LED08: 10%): 400 seconds "OPEN" (1s On, 1 s Off) 1200 s "CLOSE" (1s On, 19 s Off) Heat output 50%: 400 seconds "OPEN" (1s On, 1 s Off) 400 s "CLOSE" (1s On, 19 s Off) Heat output 80%: 1600 seconds "OPEN" (1s On, 1 s Off) 400 s "CLOSE" (1s On, 19 s Off) The long cycle time ensures that the valves are fully opened and closed. In a network containing several room controllers, the opening of the Siemens thermic actuators is staggered to prevent the heating load from fluctuating. If a thermal radiator valve actuator and a thermal heating/cooling valve actuator work in parallel, the controller controls them alternately. 58/94 Building Technologies Control sequences

59 ACS Service Select Sequences, Other setpoints: HandyTool See the parameters in the last column of the following table. Parameter for downdraft compensation Basic setting Range Resolution Outside temp 0% valve pos 0 C C 0.5 K *078 Outside temp max valve pos 10 C C 0.5 K *079 Maximum valve pos 100% % 1% *080 Parameter HandyTool Enable the function The following conditions must be fulfilled: The room controller must be in Comfort room operating mode. Building Technologies Control sequences /94

60 8.2 Chilled ceiling (CLC01) The chilled ceiling application has a continuous cooling sequence. The room controllers operate with a PI algorithm optimized for thermal or motorized valve actuators. (For simplicity, the diagram below only shows the P-control action.) The control sequence comes into operation at the effective setpoints for cooling (see page 47). Y [%] 100 C 0 YC SpC TR [ C] Y TR SpC C YC Output signal Room temperature Effective cooling setpoint Cooling sequence Cooling valve Select actuator types for chilled ceiling See section 8.1.1, page 53 on selecting actuator types for radiators. The following information differs from the radiator applications: Actuator type HandyTool Parameter Short name Basic setting *051 Actuat c surf valve STA72E Settings STE71 1 SSA81 10 El mech 3 rd party devices 252 STA71 3 SSB81 11 Thermal 3 rd party devices 253 STP71 4 SQS81 12 Motoric 3 rd party devices 254 STA72E 5 SSC81 13 STP72E 6 SSP81 14 Thermal valve actuators Notes If thermal actuators are selected, Y3 / Y4 are always controlled in parallel to ensure that several actuators can be connected at the same time. Exact parallel operation of several thermal valve actuators is not guaranteed. If several radiators are controlled by the same controller, motorized actuators are the preferred device. If nevertheless thermal actuators are controlled in parallel, "3rd Party Thermic" must be parameterized regardless of make. Thermal actuators work at higher temperatures. To ensure a fast reaction, the actuators are slightly preheated continuously (5% 1 sec ON / 19 sec OFF). Then thus also receive pulses from the controller when closed. 60/94 Building Technologies Control sequences

61 Motorized and electromechanic valves HandyTool Parameter Basic setting Range Resolution HandyTool Running time cool surf valve 150 s s 1 s *052 Offset cooling surface valve 0 s s 1 s * Values representing valve actuator positions In DESIGO integration as well as in conjunction with Synco, the valve actuator positions can be read by the integration station. Reduce bus load The bus load should be reduced by disabling the bus outputs. ACS Service Select menu item Sequences: HandyTool Short name Range Basic setting HandyTool Cool surf bus valve 0 = Disabled / Off, disabled (0) *088 1 = Enabled / On Building Technologies Control sequences /94

62 8.2.3 Valve exercising feature To prevent valves from seizing after long periods of inactivity (e.g. cooling valve in winter), the valves are operated from time to time. The valve actuators are operated in such a way as to waste as little heating or cooling energy as possible. The valve exercising function is triggered if the valve has been closed for ca. 91 hours without interruption Dewpoint monitoring Dewpoint monitoring is essential to prevent condensation on the chilled ceiling and the associated damage to the building. RXL controllers provide passive dewpoint monitoring. If condensation occurs, the cooling valve is fully closed until no further condensation is detected. The cooling output is thus temporarily disabled. However, the room controller remains in its effective room operating mode. The example below shows central dewpoint monitoring combined with passive dewpoint monitoring provided by the RXL controller. The flow temperature is increased in accordance with a centrally calculated dewpoint temperature. If the dewpoint temperature in the room exceeds the flow temperature, condensation forms and the cooling valve closes. Temperature Cooling disabled Flow temperature Safety zone Central dew point temperature Dew point temperature in room t A dewpoint sensor with a potential-free contact is connected directly to a digital input of the room controller (see page 68). 62/94 Building Technologies Control sequences

63 Notes The result is sent on the bus (see 10.10). When parameterizing, note whether the contacts are NO or NC (see page 68). Note the following for master/slave configurations: Dewpoint sensor on master: The sensor is evaluated locally cooling valve closes. This information is transmitted to the slaves. Dewpoint sensor on slave: The sensor is evaluated locally cooling valve closes. This information is NOT transmitted to the master and further slaves.. The controller immediately queries the dewpoint alarm input following a reset (if configured accordingly and provided a dewpoint is integrated). 8.3 Chilled ceiling and radiator 4-pipe (CLC02) The applications for chilled ceiling and radiator (4-pipe) each have a continuous heating and cooling sequence. The room controllers operate with a PI algorithm optimized for thermal or motorized valve actuators. (For simplicity, the diagram below only shows the P-control action.) The control sequences come into operation at the effective setpoints for heating and cooling (see page 47). Y [%] H YH SpH YC SpC C TR [ C] Y TR SpH SpC H C YH YC Output signal Room temperature Effective heating setpoint Effective cooling setpoint Heating sequence Cooling sequence Heating valve Cooling valve The radiator sequence can also be used for other heating types, e.g. floor heating. However, the control parameters are not optimized for this Configuration and parameterization Configure the chilled ceiling as described in section 8.1. Configure the radiator as described in section Notes For CLC02, no electromechanic actuators are permitted due to load. (FNC: 10, 12, 18) Also, thermal valves cannot run parallel operation of Y1 / Y2 and Y3 / Y4. Building Technologies Control sequences /94

64 9 Master/slave Example for master/slave: Several controllers are installed in a large, open-floor office. One controller (master) measures the room temperature and controls the other controllers (slaves) via the bus. This ensures that future subdivision of the room into smaller rooms without the need to change the wiring is possible. Bus T A B B Master Slave Slave Room 321 Room 322 Room Z17 Controller A is configured as the master and controls the room temperature. Controllers B are configured as slaves and operate in parallel with controller A. STOP Important! A slave controller may be controlled by one master controller only. A master, however, can control any number of slaves subject to the limits of the KNX system (topology, bus load etc.). Parallel operation of thermal valves among other factors primarily depends on the supplied voltage. We recommend to parameterize "3rd Party Thermic" for thermal valves regardless of make. Master-slave bindings are possible only between controllers with the same version (ASN) featuring the same applications and settings. Parameter Master Slave Description Normal control. The slave controller is controlled by a master controller via the bus. The master and slave controllers operate in parallel. The room temperature is measured only by the master. Master-Slave with zones Example For master-slave operation the controllers must be parameterized accordingly and the master / slave zones must be set correctly. M S S Rooum Geogr. zone Master / Slave Master Slave Slave M/S zone Note Geogr. zone und M/S zone need not bet he same. However, every day work is easier because you see directly to which master a slave belongs. 64/94 Building Technologies Master/slave

65 ACS Service Select Master/Slave: Notes The M/S function presupposes that all 3 M/S zones match. If the master/slave function is not required, the M/S zone should be disabled (to limit the load on the bus). HandyTool Parameter Short name Basic setting *021 Master/Slave Master *022 M/S zone (apartm) 1 *023 M/S zone (room) 1 (out of service) *024 M/S zone (subzone) 1 Parameter Setting HandyTool *021 Master/Slave Master 1 Slave 0 Building Technologies Master/slave /94

66 Auto Auto Auto Auto 9.1 Peripheral functions Room units in master/slave configurations The room controllers or room units can be configured as master or slave. A number of rules must be adhered to in this process. If more than one room unit is used in a master/slave configuration, only room units may be used with a button for setpoint shift. In the case of room units with a mechanical setpoint shift, only one room unit may be connected (combining room units with mechanical setpoint shift and room units with buttons for setpoint shift is not allowed). Permissible combinations Bus Room unit with button setpoint shift (several room units allowed). Master RXL... RXL... Slave 10785Z23_01 QAX34.1 QAX34.1 Room unit with mechanical setpoint shift (only one room unit allowed). Bus Master RXL... Slave RXL Z24_ QAX31.1, QAX33.1 STOP Caution If the room unit is connected to the building automation and control system via room controller and is controlled via the bus with Setpoint shift heating/cooling (pages 49, 50), a room unit with mechanical setpoint shift CANNOT be used. Prohibited combinations Bus Use of more than one room unit with a mechanical setpoint shift. RXL... RXL... Master Slave 10785Z25_ QAX33.1 QAX33.1 Combination of room units with mechanical setpoint shift and room units with buttons for setpoint shift. Bus Master RXL... Slave RXL Z26_ QAX33.1 QAX /94 Building Technologies Master/slave

67 10 General / central functions ACS Service The following functions are enabled or configured under General functions or Central functions *) *) Room number and Device name do not influence the application; they are used only for plant documentation purposes. We recommend to use this feature. HandyTool General and central functions are set using parameters (see the individual sections for detailed information). Building Technologies General / central functions /94

68 10.1 Digital inputs The following potential-free contacts can be connected to digital inputs D1 and D2: Presence detector or window contact (see section 5). Dewpoint sensor (see section 8.2.4). Digital input Function Contact action HandyTool Input 1 Input 2 Not used by the Free: Bus = 1 = Contact closed application Free: Bus = 1 = Contact open Occupancy Occupied = Contact closed Occupied = Contact open Window Window open = Contact open Window open = Contact closed Dewpoint Dewpoint = Contact closed Dewpoint = Contact open *) Free inputs / outputs can not be mapped on the bus. *113 *114 0 = Default *) 1 *) Note Do not connect the same type of sensor / functions to both digital inputs. The controller would ignore the second input Temporary Comfort mode If the room controller is set to Economy and the associated room unit is switched to Auto (Comfort), the room controller maintains Comfort for the period defined by the temporary comfort mode time and then returns to Economy. This function is only available if the room unit concerned has an Auto button (see also pages 31 and 38). Basic Parameter setting Range Resolution HandyTool Temporary Comfort mode 60 min min 1 min * Presence detector switch-on and switch-off delay A switch-on or switch-off delay can be applied to the presence detector function. The room controller only switches to Comfort (or to Precomfort or Economy) after the delay time is expired. Parameter Basic setting Range Resolution HandyTool On-delay occupancy sensor 5 min min 1 min *119 Off-delay occupancy sensor 5 min min 1 min *120 68/94 Building Technologies General / central functions

69 10.4 Heating and cooling demand To provide the required heating or cooling energy, the heating and/or cooling demand from each room is transmitted to the building automation and control system. For a more in-depth understanding of heating and cooling demand, see the application example in section 3.4. ACS Service The parameter is not available. HandyTool See the parameter in the last column of the following table. Parameter Description HandyTool Heat demand signal Heating demand transmitted to the BAC system. *131 Cooling demand signal Cooling demand transmitted to the BAC system. *132 Parameter Range Basic setting *131, *132 0 = Disabled/ Off 0 = Disabled 1 = Enabled / On 10.5 Special functions Description Function see section Parameter Boost heating *134 Precooling: Use chilled ceiling to precool the room *135 Emergency heating Free cooling During Economy, precool the room using chilled ceiling (low tariff energy). During Comfort normal mode *135 Disable special functions Triggering the special functions by the building automation and control system can be disabled in each room controller via tool. HandyTool See parameters in the last column of the above table. Building Technologies General / central functions /94

70 10.6 Morning boost (Morning Warmup) This function is used to raise the temperature in a room as quickly as possible to the Precomfort heating setpoint at the end of the night setback period. Objective: Preheat the room in the event of heating. Y [%] D23 0 SpH Stby SpC Stby TR Enable function Start function The following conditions must be fulfilled: The room controller must be in Economy room operating mode. The function must be enabled via the building automation and control system. Terminate function The function is disabled via the building automation and control system Precooling (Precool) This function is used to cool rooms to the Comfort cooling setpoint prior to actual occupancy. Y [%] D25 0 SpH Cmf SpC Cmf TR Enable function Start function The following condition must be fulfilled: The room controller must be in Economy or Precomfort room operating mode. The function must be enabled via the building automation and control system. Terminate function The function is disabled via the building automation and control system. 70/94 Building Technologies General / central functions

71 10.8 Emergency heat This function is used for emergency heating when the room temperature drops below the Risk of frost limit value. The function depends on the Effective room operating mode. The function affects control of all installed heating aggregates. When using a radiator and a heated ceiling the valve opens fully. When the room temperature rises above the Protection setpoint, the controller reverts to the original application mode (see page 69). Emergency Heat 10385D26 Normal operation SpFr SpH Prt TR Enable function Start function The following condition must be fulfilled: The building temperature must be below the Risk of frost limit. The function must be enabled via the building automation and control system. Terminate function The function is disabled via the building automation and control system. When the room temperature rises above the Protection setpoint Free cooling (Freecool) This function is used to cool rooms to the Comfort cooling setpoint prior to actual occupancy. The chilled ceiling is used actively. This is meaningful, however, only if cheap low-tariff energy is available. During occupancy (room operating modes Comfort / Precomfort) normal mode applies. Y [%] D28 0 SpH Cmf SpC Cmf TR Building Technologies General / central functions /94

72 Enable function Start function Terminate function The function is always enabled. The function must be enabled via the building automation and control system. The function is disabled via the building automation and control system Alarm Alarming works differently in DESIGO and in Synco. RXL controller support different alarms: Room temp. sensor error Room air condensation PPS2 fault Sensor interruption or short. No valid room temperature. Risk of condensation if temperature drops below dewpoint temperature. If the connection to the room unit is faulty at the room controller (via PPS2 interface), the information is transmitted with this alarm message With DESIGO When integrated in DESIGO, the above alarms are summarized and provided as common alarm With Synco The device is active on the bus and sends its alarm as soon as it receives highest alarm priority. This ensures that the control station does not miss alarms. Display on Synco device: Error code English 4910 RXL room temp. sensor error 4925 RXL room air condensation 4950 RXL general fault 4970 RXL PPS fault For more information on the alarm concept, refer to "Communication via bus, Synco700 & RXL", CE1P /94 Building Technologies General / central functions

73 10.11 Reset setpoint shift When the system changes from Comfort or Precomfort to Economy or Protection, the setpoint shift can be reset (see page 50). This function can be enabled and disabled via Central functions. STOP Important! The setpoint shift can only be reset with the QAX34.1 and QAX84.1 room units, which have an LCD display. Enabling this function in room units with a mechanical setpoint shift (potentiometer) causes data transmission errors. HandyTool Parameter Short name Range Basic setting *137 Reset setpoint shift 0 = Disabled 1 = Enabled Disabled Software version The present software version can be read via the HandyTool. HandyTool Parameter HandyTool Application set *236 42A = RXL24.1/CC-02 42B = RXL24.1/CC-02 Application version *237 *) Operating system version *238 *) KNX interface version *239 *) *) This information serves to identify the controller's software version. You can use it in case of a service request Device state If the application is ready (loaded and tested), parameter 240 is set to 1. HandyTool Parameter HandyTool Device state *240 Note In Service mode the device state is always = 0 because the application is not running. Building Technologies General / central functions /94

74 11 Room unit ACS Service Select Room unit: HandyTool See the parameters in the last column of the following table. Parameter Designation Basic setting HandyTool Measured value correction 0.0 K *101 Setpoint offset range ± 3 K *103 Local Comfort mode Enabled *105 Room unit (fixed for HandyTool "With LCD") Without LCD -- Temperature unit (only room units with LCD) Degrees Celsius *108 Standard display (only room units with LCD) Room temperature *109 Setpoint display (only room units with LCD) Relative *110 Sensor correction The measured value of the integrated temperature sensor can be corrected to compensate e.g. wall installation issues. Parameter Basic setting Range Resolution HandyTool Measured value correction 0 K K 0,1 K *101 Note This correction is also valid for a sensor that is connected to the analog input B1. Setpoint shift range The maximum setpoint shift range is as follows (see also page 50). Parameter Basic setting Range Resolution HandyTool Setpoint offset range ± 3 K ± K 1 K *103 74/94 Building Technologies Room unit

75 Local Comfort mode (With Synco only) A central station together with communication object Enable comfort (see page 36) can prevent the room operating mode from being more than Economy (to save energy). Enable Comfort, however, can be ignored in the room controller via the following parameter: Parameter Description HandyTool Local Comfort mode Change from Economy to Precomfort or Comfort mode. *105 Enabled (basic setting) Precomfort or Comfort can be disabled via the Enable Comfort input. Disabled (ignore Enable Comfort input). Precomfort or Comfort CANNOT be disabled via the Enable Comfort input. 1 0 Room unit You can choose whether or not the room unit has an LCD display. If yes, the following parameters can also be set. Beim HandyTool ist fix "Mit LCD" eingestellt. Parameter Description Basic setting Room unit Without LCD / with LCD Without LCD Select temperature unit The room temperature can be displayed either in Celsius ( C) or Fahrenheit ( F). Note that this applies only to room units with an LCD display. Parameter Value HandyTool Temperature unit (Only room units with LCD). *108 Celsius ( C) (basic setting). 1 Fahrenheit ( F) 0 Temperature display in normal mode In room units with an LCD, the temperature value to be displayed can be selected. (Normal mode = setpoint without shift or reset shift). Parameter LCD display HandyTool Standard display (Only room units with LCD). *109 No display Displays only the room operating mode and, if enabled, the heating or cooling symbol. 96 Setpoint Room temperature Present temperature setpoint. RAD01 = Heating setpoint. CLC01 = Cooling setpoint. CLC02 = Mean value between heating and cooling setpoint, e.g C as mean of SpH = 21 C and SpC = 24 C. Present room temperature used as the input for the controller (basic setting) /94 Building Technologies Room unit

76 Temperature display for setpoint shift In room units with an LCD it is possible to define what is to be displayed in the event of a setpoint shift. Parameter LCD display HandyTool Setpoint display Basic setting: Relative. *110 (Only room units with LCD). Relative Shift value e.g. +3.0K (basic setting). 0 Absolute Present temperature setpoint, e.g C. RAD01 = Heating setpoint. CLC01 = Cooling setpoint. CLC02 = Mean value between heating and cooling setpoint. 4 If "Absolute setpoint shift" is selected, the LCD displays a scale that illustrates the shift as it happens: 10385Z20 Note To reset the setpoint shift, refer to page /94 Building Technologies Room unit

77 12 Bus information 12.1 Reset and startup response A reset is initiated under the following circumstances: Failure of the processor (e.g. watchdog). After a power failure. After a bus power failure. Upon completion of a self test (using communication object Status request). After parameterization in ACS. After exiting Parameterization mode in the HandyTool After test with HandyTool. The application is restarted after every reset. Depending on the controller address, this may take s. Then, the bus connection is opened and all connected valve actuators are synchronized. This takes the following time depending on application and actuator type: Typically 170 s for closing (runtime + 10%) for motorized actuators. 300 s ON and 300 s OFF (3rd party: s) for thermal actuators. The application is placed in a safe state. Any outputs that are not synchronized are not operated (triac outputs = 0, and relay = open). Normal operation is resumed after synchronization. Notes When the controller exits test mode, only a soft reset is carried out: Valve actuators are synchronized. The control algorithm but not the entire application is restarted. Each time the control sequence reaches 0% or 100%, a limit position synchronization takes place. For motorized actuators close or open during (runtime + 10%). 300 s ON and 300 s OFF (3rd party: 400 s) for thermal actuators LED flashing pattern An LED is located at the controller's bottom right indicating the operating state by various flashing patterns: Green, flashing Normal operation. Red, flashing Programming mode for address assignment (ACS). Orange / green, Startup phase (see above 12.1). flashing No application selected (see 4.1). Loading. Download from ACS. Room unit QAX34.3 in HandyTool mode. Other patterns After switching on the operating voltage, the controller flashes for 3 to 5 seconds in different patterns. If other patterns appear during normal operation, this indicates an error. Building Technologies Bus information /94

78 12.3 Startup delay After a reset, it takes up to 5 minutes for all connected room controllers to restart. This is designed to avoid overloading the mains power supply at startup. At the same time, it reduces the load on the bus, as not all controllers transmit data at the same time. The delay is determined by the device address of the controller Bus load In a large system, bus load can be a problem especially with central commands which cause the controllers to send state information simultaneously. This can even result in the loss of data telegrams. if the recommended limits are respected (max. 45 RXL controllers per line and per integration station), no problem should occur. 78/94 Building Technologies Bus information

79 12.5 HandyTool parameters by number Visible CC-02 Parameter no. Description Name d = Display (display only) (mode 2) P = Parameter (mode 3) ("Minor parameterization") S = Service(mode 6) ("Major parameterization") RAD01 CLC01 CLC Physical address (area address) d P S X X X Physical address (line address) d P S X X X Physical address (device address) d P S X X X Plant type d S X X X Communication mode d S X X X Geographical zone (apartment) d P S X X X Geographical zone (room) d P S X X X Geographical zone (subzone) d P S X X X Time switch zone (apartment) d P S X X X Time switch zone (room) d P S X X X Time switch zone (subzone) d P S X X X Heat distr zone heating surface d P S X Refrig distr zone cooling surface d P S Outside temperature zone d P S X Master/slave d P S X X X Master/slave zone (apartment) d S X X X Master/slave zone (room) d P S X X X Master/slave zone (subzone) d S X X X Protection cooling setpoint d S X X Economy cooling setpoint d P S X X Precomfort cooling setpoint d P S X X Comfort cooling setpoint d P S X X Comfort heating setpoint d P S X X Precomfort heating setpoint d P S X X Economy heating setpoint d P S X X Protection heating setpoint d S X X Actuator type cool surf valve d S X X Running time cool surface valve d S X X Offset cooling surface valve d S X X Actuator type heat surf valve d S X X Running time heat surface valve d S X X Offset heating surface valve d S X X Outside temp 0% valve pos d S X X Outside temp max valve pos d S X X Maximum valve pos d S X X X *) X *) X X *) X X X Building Technologies Bus information /94

80 Visible CC-02 Parameter no. Description Name d = Display (display only) (mode 2) P = Parameter (mode 3) ("Minor parameterization") S = Service(mode 6) ("Major parameterization") RAD01 CLC01 CLC Heating surface output bus valve act. d S X X Cooling surface output bus valve actuator d S X X Temperature sensor B1 d S X X X Measured value correction d S X X X Setpoint offset range d S X X X Local Comfort mode d S X X X Temperature unit d S X X X Standard display d S X X X Setpoint display d S X X X Digital input 1 d S X X X Digital input 2 d S X X X Temporary Comfort mode d S X X X On-delay occupancy sensor d S X X X Off-delay occupancy sensor d S X X X 123 Room number 7) d S X X X 124 Device name 7) d S X X X Heat demand signal d S X X X Cooling demand signal d S X X X Boost heating d S X X X Precool / Freecool d S X X X Reset setpoint offset d S X X X 236 Application set d S X X X 237 Application version d S X X X 238 Operating system version d S X X X 239 KNX interface version d S X X X Device state d P S X X X *) HandyTool: Visible but not used by the application 7) Handytool: cannot be mapped 80/94 Building Technologies Bus information

81 12.6 HandyTool parameters, alphabetical Visible CC-02 Parameter no. Description Name d = Display (display only) (mode 2) P = Parameter (mode 3) ("Minor parameterization") S = Service(mode 6) ("Major parameterization") RAD01 CLC01 CLC Actuator type cool surf valve d S X X Actuator type heat surf valve d S X X 236 Application set d S X X X 237 Application version d S X X X Boost heating d S X X X Comfort cooling setpoint d P S X X Comfort heating setpoint d P S X X Communication mode d S X X X Cooling demand signal d S X X X Cooling surface output bus valve actuator d S X X 124 Device name 7) d S X X X Device state d P S X X X Digital input 1 d S X X X Digital input 2 d S X X X Economy cooling setpoint d P S X X Economy heating setpoint d P S X X Free cooling (Freecool) Precooling, (Precool) d S X X X Geographical zone (apartment) d P S X X X Geographical zone (room) d P S X X X Geographical zone (subzone) d P S X X X Heat demand signal d S X X X Heat distr zone heating surface d P S X X*) X Heating surface output bus valve actuator d S X X 239 KNX interface version d S X X X Local Comfort mode d S X X X Master/slave d P S X X X Master/slave zone (apartment) d S X X X Master/slave zone (room) d P S X X X Master/slave zone (subzone) d S X X X Max valve position d S X X Measured value correction d S X X X Off-delay occupancy detector d S X X X Offset cooling surface valve d S X X Offset heating surface valve d S X X Building Technologies Bus information /94

82 Visible CC-02 Parameter no. Description Name d = Display (display only) (mode 2) P = Parameter (mode 3) ("Minor parameterization") S = Service(mode 6) ("Major parameterization") RAD01 CLC01 CLC On-delay occupancy detector d S X X X 238 Operating system version d S X X X Outside temp 0% valve pos d S X X Outside temp max valve pos d S X X Outside temperature zone. d P S X X*) X Physical address (area address) d P S X X X Physical address (device address) d P S X X X Physical address (line address) d P S X X X 005 Plant type d S X X X Precomfort cooling setpoint d S X X Precomfort heating setpoint d P S X X Preecooling (Precool), Free cooling (Freecool) d S X X X Protection cooling setpoint d S X X Protection heating setpoint d S X X Refrig distr zone cooling surface d P S X*) X X Reset setpoint offset d S X X X 123 Room number 7) d S X X X Running time cool surface valve d S X X Running time heat surface valve d S X X Setpoint display d S X X X Setpoint offset range d S X X X Standard display d S X X X Temperature sensor B1 d S X X X Temperature unit d S X X X Temporary Comfort mode d S X X X Time switch zone (apartment) d P S X X X Time switch zone (room) d P S X X X Time switch zone (subzone) d P S X X X *) HandyTool: Visible but not used by the application 7) HandyTool: cannot be mapped 82/94 Building Technologies Bus information

83 12.7 HandyTool enumerations No. Parameter CLC / RAD FNC 1-3 Physical address X X 5 Plant type X X FC-10 FC-11 FC-12 CC-02 6 Communications mode. X X 0 = S-Mode 1 = FNC02 1 = FNC10 1 = FNC03 1 = CLC Geographical zone X X 1 = S+LTE-M 2 = FNC04 2 = FNC12 2 = FNC05 2 = CLC Time switch zone X X 3 = FNC08 3 = FNC18 3 = RAD01 14 Heat distribution zone air heater. X 4 = FNC20 15 Refrig distribution zone air cooler. X 16 Heat distr zone heating surface X X 17 Refrig distr zone cooling surface X 18 Outside temperature zone X X 21 Master/slave. X X 0 = Slave Master/slave zone X X 1 = Master Setpoints X X C: Prot / Eco / Pre-C / Comf H: Comf / Pre-C / Eco / Prot 38 Minimum supply air temperature X 39 Maximum supply air temperature X 40 Risk of frost limit X 50 Control sequence X 0 = c/o / 1 = Cooling / 2 = Heating 51 Actuator type cool surf valve X VA VA = Valve actuators: 52 Running time cool surface valve X 54 Offset cooling surface valve X 1 = on/off 1 = STE71 10 = SSA = Mot BUS 56 Electric heater X 254 = continuous 3 = STA71 11 = SSB = El-mech 3rd 57 Power consumption el heater X 4 = STP71 12 = SQS = Therm. 3rd 60 Actuator type H/C coil valve X VA 5 = STA72E 13 = SSC = Mot. 3rd 61 Running time damper heating X 6 = STP72E 14 = SSP Running time damper cooling X 63 Actuator type heat surf valve X X VA 64 Running time heat surface valve X X 66 Offset heating surface valve X X 70 Changeover time damper X 71 Offset heating valve X 72 Offset cooling valve X 73 Outside temp min damper pos X 74 Running time outside air damper X 75 Minimum damper position X 78 Outside temp 0% valve pos X X 79 Outside temp max valve pos X X 80 Max valve position X 85 Heating (coil) outp bus valve X 86 Heating surface output bus valve actuator X 0 = OFF 87 Cooling (coil) outp bus valve X 1 = ON 88 Cooling surface outp bus valve, X 89 Heating outp bus el heating X 92 Temperature sensor. X X 0 = Ret. air / 1 = Room / 3 = Meas. val. / 255 = No sensor 93 Fan control X 0 = manual / 1 = automatic 94 Fan speeds X 0 = automatic / 1 = 1-stage / 2 = 2-stage / 3 = 3-stage 95 Minimum on time X 96 Periodic fan kick Comfort X 97 Periodic fan kick Eco X 98 Fan overrun time X 101 Measured value correction X X 103 Setpoint offset range X X 105 Local Comfort mode X X 0 = disabled / 1 = enabled 108 Temperature unit X X 0 = F / 1 = C 109 Standard display X X 2 = Room temp. / 48 = Setpoint / 96 = No display 110 Setpoint display X X 0 = relative / 4 = absolute 113 Digital input 1 X X 0 = BUS 1 / Contact closed 8 = Dewpt. / Contact closed 114 Digital input 2 X X 1 = BUS 1 / Contact open 9 = Dewpt. / Contact open 117 Temporary Comfort mode X X 2 = Occup / Contact closed 16 = Overt. / Contact open 119 On-delay occupancy detector X X 3 = Occup / Contact open 17 = Overt. / Contact closed 120 Off-delay occupancy detector X X 4 = Wind. open / Contact open 32 = Frost / Contact closed 127 Send heartbeat X X 5 = Wind. open / Contact closed 33 = Frost / Contact open 128 Receive timeout X X 131 Heat demand signal X X 132 Cooling demand signal X X 0 = OFF 134 Boost heating X X 1 = ON 135 Preecooling / Free cooling X X 136 Rapid ventilation (earlier: air purge) X 137 Reset setpoint offset X X 138 Night purge X 236 Application set X X 237 Application version X X 238 Operating system version X X 239 KNX interface version X X 240 Device state X X Building Technologies Bus information /94

84 13 FAQ Question: Answer: What happens if the parameter download process is interrupted? (power failure, bus failure etc.) The parameter set loaded into the controller is incomplete. The controller does not start properly. Valves may not open. Reload the parameters. Question: Answer: Why does the controller fail to start after a parameter download? (applies to HandyTool and ACS.) Parameter download was probably interrupted or exposed to interference. Reload the controller with the entire parameter set (via HandyTool or ACS). Question: Answer: Why does the controller not start after adjusting certain parameters? (applies to HandyTool.) Parameter download probably interrupted or fault. A complete parameter set must be loaded in the controller (via HandyTool or ACS). Question: Answer: Why does the HandyTool not display parameter 1 upon quick quit and restart of the Display mode? Communication to the HandyTool is relatively slow. You need to wait a brief moment before reopening the Display mode. Question: Answer: Why does the HandyTool display "uuuu"? Other parameters have been changed so that the selected parameter became irrelevant. Just continue your work;. the problem will disappear when the parameterization is started again. Question: Answer: ACS: Why is reading back parameters so slow? Check to make sure that neither the operating booklet nor the plant image is active. Both applications cause a lot of bus traffic and thus slow down reading back parameters. 84/94 Building Technologies FAQ

85 Question: Answer: ACS: Parameter download does not work, why? Make sure that the parameter tree is expanded prior to download. Wrong Right Note Download sometimes also works with a collapsed parameter tree. Question: Answer: Why can I not parameterize the controller via HandyTool in service mode (n6)? Download (HandyTool or ACS) was not exited correctly (interrupted). Solution: Carry out a full download (via HandyTool or ACS). Question: Answer: Why does a controller with thermal valves not respond immediately when it is enabled in the plant graphics in the ACS view and in the DESIGO graphics? After startup, the thermal valves are preheated first. This is not shown in the plant graphic. Question: Answer Why doesn t the Master/Slave connection work? Master/slave zones must match for master and slave Question: Answer: With master/slave configurations, why do the QAX34 room units not always show the same temperature values? The master-controller and slave-controller data is synchronized regularly. If a value changes just after synchronization, it may be a few minutes until it is resynchronized. Question: Answer for Why does the slave window contact/occupancy contact have no effect? The slave window contact can only be integrated via the CFC. The corresponding compound is available on Swan Web: [WndStaDtr], [OcStaDtr]. Building Technologies FAQ /94

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