System CPX-E. Bus module CPX-E-PB. Description. Protocol PROFIBUS DP. Function Parameterisation [ ]

Transcription

1 System CPX-E Bus module CPX-E-PB Description Protocol PROFIBUS DP Function Parameterisation [8725]

2 Bus module CPX-E-PB Original instructions CPX-E-PB-E N PI PROFIBUS PROFINET is a registered trademark of its respective trademark holder in certain countries. Symbols used: Note Material damage or loss of function Recommendations, tips, references to other documentation 2 Festo CPX-E-PB-EN 27-7

3 Bus module CPX-E-PB Table of Contents About this document Further applicable documents Target group Product version Product labelling Specified standards Function General remarks Product design Display components Control elements Connecting components Device description file Control commands Identification & Maintenance (I&M) Address assignment Addressing Basic rules for addressing Addressing example Diagnostics options LED indicators Status bits I/O diagnostic interface Diagnosis via PROFIBUS DP Diagnostic steps Overview of diagnostic bytes Standard diagnostic information Identifier-related diagnosis Channel-related diagnosis Parameterisation Access to system CPX-E via DPV Data records Examples for access to data records through DPV Operation with the general DP master Implemented functions and service access points Bus parameters and reaction times Transmission times on PROFIBUS DP Bus start Send parameterisation data Set_Prm Check configuration data Chk_Cfg Read diagnostic data Slave_Diag Transfer input and output data Data_Exchange A Technical Data B Terminology Index Festo CPX-E-PB-EN 27-7 English 3

4 About this document About this document This document describes the function and parameterisation of the product stated in the title. Safe use of the product is described in a separate document. Further applicable documents.. Further applicable documents Document Description of system CPX-E (CPX-E-SYS) Instructions for using system CPX-E (CPX-E-SYS) Instructions for using bus module CPX-E-PB (CPX-E-PB) Documentation for the components in a system CPX-E and the connected peripherals Documentation for the higher-order controller and the additional participants in the network Tab.. Contents Detailed description of system CPX-E Instructions and important notes on mounting, electrical installation and maintenance tasks in a system CPX-E Instructions and important notes on the use and safe usage of the product Information on using the components Information on commissioning and parameterisation of the components For all available product documentation Target group This document is intended for qualified personnel. Experience in PROFIBUS DP networks is required in order to understand this documentation..3 Product version This document refers to the following product versions: Product Version number CPX-E-PB Bus module CPX-E-PB, revision 3 onward Tab..2 The product version can be identified from the product label or with the help of appropriate software from Festo. Appropriate software for identifying the product version can be found in the Festo Support Portal Information on using the software can be found in the integrated Help function. There may be an updated version of this document for these or later product versions. Check whether a corresponding version of this document is available 4 Festo CPX-E-PB-EN 27-7 English

5 About this document.4 Product labelling The product labelling is located on the left-hand side of the module. Scanning the printed Data Matrix Code with an appropriate device calls up the Festo Support Portal, with information appropriate for the product. Alternatively, the Product Key (-digit alphanumeric code on the product labelling) can be entered in the search field of the Support Portal. Designation 2 Part number/serial number 3 Revision status 4 Data Matrix Code 5 Product Key 6 Approvals/warning symbols 7 Port assignment Fig...5 Specified standards Version status EN 6529:23- IEC 624-:24- EN 6-6-2:29-4 IEC 658:24-7 EN 6-6-4:2-9 NE 2:22-5 Tab..3 Festo CPX-E-PB-EN 27-7 English 5

6 2 Function 2 Function 2. General remarks The product is intended for the operation of system CPX-E in a PROFIBUS DP network according to IEC 658. Data transmission takes place using an RS485 interface. Using an optical adapter, data transmission through a fibre-optic cable is also possible. In a PROFIBUS DP network, the product acts as a DP slave and can be combined with up to 3 additional participants. The process image is assigned by the user using the identifier byte during the planning and design phase of the DP slave. For the parameterisation of system CPX-E, the parameterisation data can be sent by the DP master to the bus module using PROFIBUS DP. Using the DPV command, all data and parameters provided by system CPX-E can be accessed. Through the USB interface, all relevant information of system CPX-E can be read and changed depending on the function. 2.. Product design LED displays 2 DIL switch 3 Diagnostic interface [DIAG] (mini-usb) 4 Terminal strip for the operating voltage supply U EL/SEN [XD] 5 Terminal block lock 6 Linking 7 Network connection [XF] Fig Display components Network-specific LED indicator: Bus error [BF] (red) 2 System-specific LED indicators: Operating voltage supply U EL/SEN [PS] (green) Load voltage supply U OUT [PL] (green) System fault [SF] (red) Force mode [M] (yellow) Fig Festo CPX-E-PB-EN 27-7 English

7 2 Function 2..3 Control elements DIL switch Tab. 2. Function The station number of the bus module is set in binary code using the 2 DIL switches Permissible station numbers: 25 5 Factory setting: 3 6 Example: Tab Device-specific diagnostics ON = Active (factory setting) OFF = Inactive Example of setting the station number DIL : OFF 2 = Example: DIL 2: ON 2 = = = 22 DIL 3: ON 2 2 = 4 DIL 4: OFF 2 3 = 8 Set station number = 22 DIL 5: ON 2 4 = 6 DIL 6: OFF 2 5 = 32 DIL 7: OFF 2 6 = 64 Tab Connecting components Connection [XF] Signal Designation Shield Functional earth 2 n.c. 3 RxD/TxD-P Received/transmitted data P 4 CNTR-P Repeater control signal ) 5 DGND Data reference potential (M5V) 6 VP Supply voltage positive (P5V) 7 n.c. 8 RxD/TxD-N Received/transmitted data N 9 n.c. 2) Shield Functional earth ) The repeater control signal CNTR-P is configured as a TTL signal. 2) Housing Tab. 2.3 Port [XD] ) Signal +24 V DC operating voltage supply U EL/SEN 2 V DC operating voltage supply U EL/SEN 3 ) The ports XD. and XD. and also XD.2 and XD.3 are interconnected in the terminal strip. Tab. 2.4 Diagnostic interface [DIAG] Via the diagnostic interface [DIAG] (mini-usb), the bus module can be connected to a PC on which parameterisation and diagnostics software is installed. Festo CPX-E-PB-EN 27-7 English 7

8 2 Function 2..5 Device description file The bus module is planned and designed in the control software of the higher-order controller using a device description file (GSD file). This file contains all the information required for parameterising the system CPX-E using controller software (such as Siemens STEP 7). The device description file is available at the Festo Support Portal Control commands The control commands FREEZE, SYNC and CLEAR_DATA are supported by system CPX-E according to PROFIBUS specification IEC 658. Calling this command depends on the network interface used. The control commands FREEZE and/or SYNC are reset automatically for: Activation/deactivation of system CPX-E Stop of the network interface Only the control command FREEZE is reset automatically in case of: Network connection to system CPX-E interrupted (if response monitoring is activated) FREEZE All inputs of system CPX-E are frozen and system CPX-E sends a constant image of all inputs to the master. For each additional FREEZE command, the input image is updated and reset to the master. The control command UNFREEZE returns the system to normal operation. SYNC All outputs of system CPX-E are frozen and, from now on, system CPX-E no longer react to output image changes in the master. For each additional SYNC command, the output image is assumed in an updated form. The control command UNSYNC returns the system to normal operation. CLEAR_DATA All outputs of system CPX-E is reset Identification & Maintenance (I&M) The Identification & Maintenance (I&M) function acts as an electronic product label for the bus module and provides standardised, non-proprietary access to device-related information about the network. Functions I&M I&M4 are supported by bus module CPX-E-PB. 8 Festo CPX-E-PB-EN 27-7 English

9 2 Function 2.2 Address assignment The system CPX-E is composed of a different number of inputs and outputs, depending on the number and type of modules CPX-E used and the parameterisation of the bus module. The inputs and outputs are assigned automatically within the system CPX-E. The address assignment (number of allocated inputs and outputs) on the system CPX-E must be determined prior to commissioning. A maximum of I/O modules + bus module is permitted in one system CPX-E. The address space of a system CPX-E is limited. The bus module provides the system CPX-E with a maximum address space of 64 bytes for inputs and 64 bytes for outputs. Activated diagnostic functions like status bits or the I/O diagnostic interface reduce the number of inputs and/or outputs in the available address space. 2.3 Addressing 2.3. Basic rules for addressing The address assignment of the inputs does not depend on the address assignment of the outputs. The counting mode is module-oriented from left to right. The bus module counts as a module with inputs and outputs when the status bits and the I/O diagnostic interface are deactivated. Activated status bits occupy 8 inputs. An activated I/O diagnostic interface occupies 6 inputs and 6 outputs Addressing example Bus module CPX-E-PB Status bits activated I/O diagnostic interface deactivated 2 Digital input module CPX-E-6DI 3 Digital output module CPX-E-8DO 4 Digital output module CPX-E-8DO 5 Analogue input module CPX-E-4AI-U-I 6 Analogue output module CPX-E-4AO-U-I Module no.: Fig The address assignment for the system CPX-E presented is shown in Tab Module no. Module Input address Output address Bus module CPX-E-PB (with status bits) E E7 Digital input module CPX-E-6DI I8 I23 2 Digital output module CPX-E-8DO A 7 3 Digital output module CPX-E-8DO A8 5 4 Analogue input module CPX-E-4AI-U-I I24 I87 5 Analogue output module CPX-E-4AO-U-I O6 O79 Tab. 2.5 Festo CPX-E-PB-EN 27-7 English 9

10 2 Function 2.4 Diagnostics options The module supports various diagnostics options, depending on the configuration and parameterisation of the system CPX-E. Diagnostics option Description Detailed information LED display components System-specific Network-specific Status bits I/O diagnostic interface Festo software PROFIBUS DP PROFIBUS DPV Tab. 2.6 The system status and errors are displayed directly on the module via LED indicators. The network status and errors are displayed directly on the module via LED indicators. Common diagnostic messages are transmitted cyclically to the interface as internal inputs. Access is via the control software, independently of the interface and master. Network-independent diagnostic interface with read access to the internal data of the system CPX-E at the I/O level. Malfunctions or errors are displayed directly on a PC, meaning that diagnostics is also possible from a higher automation level. Diagnostics through the network within the scope of the PROFIBUS functionality. Detailed module-related and channel-related error detection by means of control software. Expanded access to the system data of system CPX-E through the network using controller software. Instructions for using system CPX-E Description of system CPX-E 2.4. Instructions for use of CPX-E-PB Description of system CPX-E Description of system CPX-E Online help for software 2.5 Festo CPX-E-PB-EN 27-7 English

11 2 Function 2.4. LED indicators This document describes the network-specific LED indicators. The system-specific LED indicators are described in the documentation for system CPX-E. Further applicable documents. Bus error [BF] LED (red) Significance Remedy Station number not correct (e.g. address Check address setting of the DIL switches in flashes assigned twice) the bus module. Bus interface faulty Check bus interface of the master. Bus connection interrupted or short-circuited Check bus connection. Faulty configuration Check configuration of the master. Bus connection poor or transmission rate not detected Reduce transmission rate. No error off Tab Status bits System CPX-E provides 8 status bits for displaying global common diagnostic messages. The status bits are configured like inputs and supply coded diagnostic information in the form of or signals. If all status bits are supplying a signal, there is no error. If, in contrast, a status bit supplies a signal, there is an error. In order to make use of the status bits function, the bus module of the system CPX-E must be configured accordingly. The status bits are displayed in the process image insofar as set by the selection of the catalogue entry CPX-E-PB DP-Slave [Status] in the hardware configurator. If different errors occur simultaneously on different module types, errors cannot be assigned. To clearly determine errors, the I/O diagnostic interface can be used I/O diagnostic interface. You can find detailed information about status bits in the Description of system CPX-E. Further applicable documents I/O diagnostic interface The system CPX-E provides an I/O diagnostic interface in the form of 6 input bits and 6 output bits for reading detailed diagnostic information. The I/O diagnostic interface can be used, for example, to precisely determine the module and channel on which an error has occurred. In order to make use of the I/O diagnostic interface, the bus module of the system CPX-E must be configured accordingly. The I/O diagnostic interface is displayed in the process image insofar as set by the selection of the catalogue entry CPX-E-PB DP-Slave [DP-V] in the hardware configurator. You can find detailed information about the I/O diagnostic interface in the Description of system CPX-E. Further applicable documents. Festo CPX-E-PB-EN 27-7 English

12 2 Function 2.5 Diagnosis via PROFIBUS DP System CPX-E supports the following diagnostics options via PROFIBUS DP in the following stages according to IEC 658: Station status (standard diagnostic information) Devide-related diagnostics (general, device-related status signals of the system) Identifier-related diagnostics (diagnostics assigned to the modules) Channel-related diagnostics (diagnostics assigned to the channels) Module number Channel number and input/output Type of diagnostics (error type and channel type) 2.5. Diagnostic steps The necessary steps for performing diagnostics on the system CPX-E are explained below. Step : Evaluation of the standard diagnostic information station status (diagnostic byte ) Bit Station status Evaluation of Bit and Bit 2: No operating voltage present on system CPX-E, network plug not inserted, etc. Configuration data obtained from the master does not agree with the configuration data from the CPX-E system. Evaluation of Bit 3: Diagnostic message present Step 2 Step 2: Evaluation of the diagnostic bytes Byte 7 22: Device-specific diagnostics Tab. 2.9 Byte 23 29: Identifier-related diagnostics Tab. 2. and Identifier-related diagnosis Byte 3 62: Channel-related diagnostics Tab. 2. and Channel-related diagnosis Fig. 2.4 The diagnostic information is sent to the master system only when the diagnostic mode is activated. In some cases, the diagnostics mode must be shut down to commission the system Overview of diagnostic bytes Standard diagnostic information (6 bytes) Byte Table of contents Explanation Station status Tab Station status 2 Tab Station status 3 Tab Diag.Master_add Address of the master parameterised by system CPX-E. 5 Ident_number High Byte Manufacturer identifier High Byte (F h ) 6 Ident_number Low Byte Manufacturer identifier Low Byte (A3 h ) Tab Festo CPX-E-PB-EN 27-7 English

13 2 Function Device-specific diagnostics (6 bytes) Byte Table of contents Explanation 7 Header h 8 Type 82 h 9 Slot h Slot h Module (Bit and ) Module 3 (Bit 6 and 7) 2 Modules 4 7 Byte 3 Modules 8 ) 4 22 Reserved ) Bits 6 and 7 are reserved. Tab bits per module: = no error (user data valid) = module error (user data invalid) = incorrect module (user data invalid) = module failed/not present (user data invalid) Identification-related diagnosis (7 bytes) Byte Table of contents Explanation 23 Header 47 h 24 Modules 7 bit per module to display pending diagnostics 25 Modules 8 bit per module to display pending diagnostics ) Reserved ) Bits are reserved. Tab. 2. Channel-related diagnosis (variable length) )2) Byte Table of contents Explanation 3 Module x (Byte ) Module number 3 (Byte 2) Channel number and input/output 32 (Byte 3) Type of diagnostics (error type/channel type) 33 Module y (Byte ) Module number 34 (Byte 2) Channel number and input/output 35 (Byte 3) Type of diagnostics (error type/channel type) 6 Module z (Byte ) Module number 62 (Byte 2) Channel number and input/output 62 (Byte 3) Type of diagnostics (error type/channel type) ) The entry is made gap-free in ascending order according to module numbers and independently of the temporal sequence of the diagnostic messages. If necessary, entries with larger module numbers are moved. 2) diagnostic messages maximum can be processed. Tab. 2. Festo CPX-E-PB-EN 27-7 English 3

14 2 Function Standard diagnostic information The following diagnostic information can be requested from the DP master using function Slave_Diag of system CPX-E Tab Station status ) Bit Meaning Explanation Diag.Station_Non_E xistent = system CPX-E can no longer/not yet be addressed. Possible causes: Operating voltage not applied Data transmission line interruped or disturbed Diag.Station_Not_Ready = system CPX-E not yet ready for data exchange. 2 Diag.Cfg_Fault = Configuration data obtained from the master does not agree with the configuration data from system CPX-E. 3 Diag.Ext_Diag = Diagnostic message exists. Possible causes: Cable fracture on input/output module Short circuit/overload of electrical outputs, etc. 4 Diag.Not_Suppor ted = System CPX-E does not support the requested function 5 Diag.Invalid_Slave_Response Always (permanently set by system CPX-E) 6 Diag.Prm_Fault = Last parameterisation telegram incorrect 7 Diag.Master_Lock Always (permanently set by system CPX-E) ) Bits that refer to system CPX-E are bolded. Tab. 2.2 Station status 2 ) Bit Meaning Explanation Diag.Prm_Req = Master must reconfigure system CPX-E Diag.Stat_Diag = Master must request diagnostic data until this bit is set to 2 Always (permanently set by system CPX-E) 3 Diag.WD_On = Response monitoring (watchdog) activated 4 Diag.Freeze_Mode = Freeze activated 5 Diag.Sync_Mode = Sync activated 6 Reserved 7 Diag.Deactivated Always (permanently set by system CPX-E) ) Bits that refer to system CPX-E are bolded. Tab. 2.3 Station status 3 Bit Meaning Explanation 6 Reserved 7 Diag.Ext_Diag_Overflow = system CPX-E has more diagnostic messages than can be buffered or master contains more diagnostic messages than it can buffer. Tab Festo CPX-E-PB-EN 27-7 English

15 2 Function Identifier-related diagnosis One bit is reserved for every module (identifier byte) assigned during configuration. A set bit means that a diagnostic message exists in this I/O area. Header byte Settings Byte Bit Length of the module-related diagnostic block in the byte, including the 23 header byte Bit 7 and Bit 6 are permanently set Tab. 2.5 Module-related diagnostics Settings Byte Bit Pending diagnostics at Module 24 Module Module 2 Module 3 Module 4 Module 5 Module 6 Module 7 Module 8 25 ) Module 9 Module ) Bits are reserved. Tab Channel-related diagnosis 3 bytes of diagnostic data are available for each channel: Byte : Module number Byte 2: Channel number and input/output Byte 3: Type of diagnostics (error type and channel type) For the entries in the diagnostic bytes 3 62 (channel-related diagnostics), the following applies: The entry is made gap-free in ascending order according to module numbers The entries must always be in the same sequence as the module numbers, irrespective of the time sequence of the diagnostic messages (if necessary, the entries with large module numbers will be shifted). In the case of module-orientated and channel-orientated faults on a module, only the module-orientated diagnostic message will be entered. If there are several channel-orientated faults on a module, only the diagnostic message of the channel with the lowest channel number will be entered. diagnostic messages maximum can be processed. Module number Settings Byte Bit Module number 63 Bit 6 and Bit 7 are permanently set Tab. 2.7 Festo CPX-E-PB-EN 27-7 English 5

16 2 Function Channel number and input/output Settings Byte Bit Channel number 63 Input/output Reserved Input Outlet Input/output Tab. 2.8 Type of diagnosis Settings Byte Bit Error type Tab. 2.2 Channel type Reserved bits 2 bits 4 bits bytes word 2 words Reserved Tab. 2.9 Value Error type (standard) ) Value Error type (Festo) ) Reserved 6 Incorrect valve setting Short circuit 7 Valve: switching cycle meter, limit value exceeded 2 Undervoltage 8 9 Reserved 3 Overvoltage 2 Parametrizing fault (configurable) 4 Overload 2 Parametrizing fault (data format) 5 Over-temperature 22 Parametrizing fault (linear scaling) 6 Cable break 23 Parameterisation error (digital filter) 7 Upper limit exceeded 24 Parameterisation error (lower limit value) 8 Lower limit undershot 25 Parameterisation error (upper limit value) 9 5 Reserved 26 Actuator supply faulty Reserved 3 Slave has no network connection 3 Channel failed ) For bus module CPX-E-PB, the relevant error types are bolded. Tab Festo CPX-E-PB-EN 27-7 English

17 3 Parameterisation 3 Parameterisation The behaviour of the system CPX-E can be parameterised with the aid of suitable software from Festo or using a higher-order controller. Here, a distinction is made between the following variants: System parameters Module parameters (module-specific and channel-specific) Parameterisation of the diagnostic memory A detailed description of the individual parameters can be found in Description of system CPX-E and in the descriptions of the individual modules. Further applicable documents. 3. Access to system CPX-E via DPV By means of a higher-order controller, parameter and status information, as well as the system data of system CPX-E, can be accessed by DPV commands. The DPV command is available only if the bus module is configured with the following option: CPX-E-PB:DP-Slav e [DP-V] 3.. Data records The parameters and data are accessed by a slot number and an index number. The slot number for module-related data is as follows: Slot number = module number + The index number can be found in Tab. 3. Tab The following tables show the connection between the access to parameters and data with DPV and function numbers. Additional information the function numbers can be found in Description of system CPX. Further applicable documents. Slot : System parameters Index Name Length [byte] Access ) Data record number 2) Function number 6 System data 6 r (reserved) 7 System parameters 8 r/w 7 44 (reserved) Reserve 64 r/w System diagnostics data 8 r (reserved) 2 Diagnostic memory parameters 8 r/w Diagnostic memory entry r Diagnostic memory entry r r 6 Diagnostic memory entry 6 r Delete diagnostic memory w 65 ) r = read access; w = write access 2) Siemens S7: S7-compatible parameter setting Tab. 3. Festo CPX-E-PB-EN 27-7 English 7

18 3 Parameterisation Slot 2: Channel-specific module parameters Index Name Length [byte] Access ) Data record number 2) 6 Fault mode 64 r Fault state 64 r Force mode Outputs 64 r Force state Outputs 64 r Force mode Inputs 64 r Force state Inputs 64 r Global operating system data 4 r ) r = read access; w = write access 2) Siemens S7: S7-compatible parameter setting Tab. 3.2 Function number The data records (system parameters, module data and module parameters) can be read and written indirectly at Slot 3. For this purpose, the command box is assigned a slot number, index number and offset (Byte 4 is reserved). Read and write procedures can be performed using Read Box and Write Box. Slot 3: Indexed addressing of the objects Index Name Length [byte] Access ) Data record number 2) 6 Command box 4 r/w 9 7 Read Box 64 r 8 Write Box 64 w ) r = read access; w = write access 2) Siemens S7: S7-compatible parameter setting Tab. 3.3 Slots 47: Module data and module parameters Index Name Length [byte] Access ) Function number Data record Function number 3) number 2) 6 Module configuration 6 r/w m 7 Module serial number 4 r m 8 Diagnostic data module 4 r m 9 Reserve 4 r/w m 2 Set module configuration 8 r/w m 2 Module parameter 64 r/w m 22 Module parameter sets 6 r m 23 Diagnosis of all input channels 64 r Diagnosis of all output channels 64 r 8 25 Module Fault mode 64 r/w 8 26 Module Fault state 64 r/w Module forcen: Outputs 64 r/w Module forcen: Outputs 64 r/w Module forcen: Inputs 64 r/w 85 3 Module forcen: Inputs 64 r/w 86 ) r = read access; w = write access 2) Siemens S7: S7-compatible parameter setting 3) m = Module number Tab Festo CPX-E-PB-EN 27-7 English

19 3 Parameterisation 3..2 Examples for access to data records through DPV The following examples refer to the system CPX-E shown in Fig. 3.. Bus module CPX-E-PB (with status bits) 2 Digital input module CPX-E-6DI 3 Digital output module CPX-E-8DO 4 Digital output module CPX-E-8DO 5 Analogue input module CPX-E-4AI-U-I 6 Analogue output module CPX-E-4AO-U-I Module no.: Fig Access to data records For module no. 3 (digital output module CPX-E-8DO), module parameter Behaviour after short circuit shall be changed. First, the command box is assigned as follows Tab Command box assignment Byte Table of contents Slot number Index number Offset Example 3 ) 2 ) As module-related data are relevant here: slot number = module number + Tab. 3.5 After that, value must be transferred with Write Box. Access to diagnostic memory Diagnostic memory entry shall be read. First, the command box is assigned as follows Tab Command box assignment Byte Table of contents Slot number Index number Offset Example 2 Tab. 3.6 After that, the diagnostic memory entry must be read with Read Box. Festo CPX-E-PB-EN 27-7 English 9

20 3 Parameterisation 3.2 Operation with the general DP master System CPX-E can be controlled by a PLC, PC or industrial PC with a PROFIBUS DP interface according to the PROFIBUS specification pursuant to IEC Implemented functions and service access points DSAP ) Function Data from master to slave Data from slave to master NIL Data_Exchange Output data Input data 48 MSAC_C2 Function for communication with a Class 2 master (e.g., PC/PG) 2) (x x3) 5 5 MSAC_C Function for communication with a Class master (e.g., PLC) 3) (x32 x33) 55 (x37) Set_Slave_Add Not available 56 (x38) RD_Inp Empty Input data 57 (x39) RD_Outp Empty Output data 58 (x3a) Global_Control Control 59 (x3b) Get_Cfg Empty Configuration 6 (x3c) Slave_Diag Empty Leakage 6 (x3d) Set_Prm Parameter Short Confirmation (SC) 4) 62 (x3e) Chk_Cfg Configuration Short Confirmation (SC) 4) ) Destination Service Access Point 2) Dynamic use and service access points are defined at the connection set-up. 3) Fixed service access points 4) Short confirmation Tab Bus parameters and reaction times Transmission rate [kbps] max T SDR [T bit ] ) min T SDR [T bit ] 2) ) Maximum Station Delay Responder 2) Minimum Station Delay Responder Tab Transmission times on PROFIBUS DP The transmission times depend on the cycle time of the PLC and update time of the network. Independently of structure, the delay times within system CPX-E amount to less than ms. The calculation of the overall transmission time can be found in the controller user documentation. 2 Festo CPX-E-PB-EN 27-7 English

21 3 Parameterisation Bus start For proper commissioning, the DP-Master must perform the following functioning in the order below:. request diagnosis 2. Send parameterisation data Set_Prm In the case of the start parameters, parameter sets are loaded to the bus module by the master. The bus module distributes the parameters across the modules. 3. Check configuration data Chk_Cfg Transfer input and output data Data_Exchange Read diagnostic data Slave_Diag After each interruption of the network system, e.g. after an interruption of the bus module power supply, the parameter record is sent to the bus module by the DP master once again. An exchange of individual CPX-E modules is therefore possible without manual parameterisation Send parameterisation data Set_Prm The parameterisation data is transferred to system CPX-E-System by the DP master using function Set_Prm. Octet : Station status Settings Designation Bit Response monitoring (Watchdog) of system CPX-E WD_On Monitoring deactivated Monitoring activated FREEZE mode request Freeze_Req FREEZE mode not requested by master FREEZE mode set by master SYNC mode request Sync_Req SYNC mode not requested by master SYNC mode set by master Locking/unlocking of system CPX-E Unlock_Req/ Min T ) SDR and slave parameters can be overwritten Lock_Req System CPX-E unlocked for other masters System CPX-E locked for other masters System CPX-E unlocked for other masters 2) ) Minimum Station Delay Responder Tab. 3. 2) Bit 6 has priority over Bit 7 Tab. 3.9 Octet 2 3 Settings Designation Bit Transmission of the response monitoring time (Watchdog time) WD_Fact_ ) of system CPX-E with these two octets. (range of values respectively 255) TWD [s] = ms x WD_Fact_ x WD_Fact_2 WD_Fact_2 2) ) Octet 2) Octet 2 Tab. 3. Festo CPX-E-PB-EN 27-7 English 2

22 3 Parameterisation Octet 4 Settings Designation Bit Minimum wait until system CPX-E can send the response telegram to the DP master. ) Minimum Station Delay Responder Tab. 3. Min T SDR ) Octet 5 6 Settings Designation Bit Transmission of the manufacturer identifier (59E h ) of system CPX-E. Parameterisation telegrams to system CPX-E are accepted only if the sent and programmed Ident. Numbers correspond. Ident_number Tab. 3.2 Octet 7 Settings Designation Bit Not supported by system CPX-E. Group_Ident Tab. 3.3 Octet 8 98 Settings Designation Bit Slave-specific parameters User_Prm_Data Tab Check configuration data Chk_Cfg The configuration data is transferred to system CPX-E-System by the DP master using function Chk_Cfg. The identifiers of the modules according to IEC 658 and assigned address space are listed in the Festo catalogue Read diagnostic data Slave_Diag The diagnostic data is requested by system CPX-E using function Slave_Diag Tab The response monitoring time (watchdog time) can be determined using the Set_Prm function Tab. 3.. The behaviour of system CPX-E in case of a fault, e.g., in case of a network failure, depends on the parameterised behaviour of the master interface and the fail-safe setting. Information on this topic can be found in Description of system CPX-E. Further applicable documents. 22 Festo CPX-E-PB-EN 27-7 English

23 3 Parameterisation Transfer input and output data Data_Exchange The cyclic data exchange takes place using the Data_Exchange function. The output data for system CPX-E is sent as an octet string using this function. The string length depends on the number of identifier bytes. With the Data_Exchange function, system CPX-E expects the output data for the valves and electrical outputs. The input data is sent to the DP master as an answer telegram. The following table shows an overview of the user data (Data_Exchange) for the example Fig. 3.. Output data (Outp_Data) Input data (Inp_Data) No. Module type Byte ) Octet Bit Outlet 2) No. Module type Byte 3) Octet Bit Input 4) 2 CPX-E-8DO x. CPX-E-PB Diagnostic x. (status bits) message 7 x CPX-E-8DO 2 y. CPX-E-6DI 2 t. y. t. 7 y.7 7 t.7 5 CPX-E-4AO-U-I 2 3 z. 2 3 u. z. u. 7 z.7 7 u (z+). 4 CPX-E-4AI-U-I 3 4 v. (z+). v. 7 (z+).7 7 v (v+). 9 (z+7). (v+). (z+7). 7 (v+).7 7 (z+7).7 (v+7). (v+7). 7 (v+7).7 ) Output byte 2) Address offset of master module: x, y, z Tab ) Input byte 4) Address offset of master module: t, u, v Festo CPX-E-PB-EN 27-7 English 23

24 A Technical Data A Technical Data General Key feature Specification/value General technical data of system CPX-E Description of system CPX-E. Further applicable documents Dimensions (Length x Width x Height) [mm] 25.8 x 37.8 x 76.5 Product weight ) [g] 45 Assembly position Vertical/horizontal Ambient temperature [ C] 5 +6 ( 5 +5) 2) Storage temperature [ C] 2 +7 Air humidity (non-condensing) [%] 95 Assigned address space (inputs/outputs) Without diagnostics [bit] / With status bits [bit] 8/ With I/O diagnostic interface [bit] 6/6 Module code/submodule code (CPX-E-specific) 222/3 Module identification E-PB DP identifier/iec 658 Without diagnostics / h With status bits 64/4 h, h With I/O diagnostic interface 92/C h, 8 h, 8 h Degree of protection in accordance with EN 6529 IP2 Protection against electric shock (protection against direct and indirect contact to IEC 624-) Through the use of PELV circuits (Protected extra-low voltage) Electromagnetic compatibility To EN 6-6-2/-4 and NE 2 ) Including linking 2) With horizontal mounting position Tab. A. Power supply Key feature Specification/value Operating voltage supply for electronics/sensors [V DC] 24 ± 25 % (U EL/SEN ) Intrinsic current consumption at nominal operating [ma] 5 voltage 24 V from U EL/SEN Reverse polarity protection 24 V U EL/SEN against Yes V U EL/SEN Mains buffering time [ms] 2 Tab. A.2 24 Festo CPX-E-PB-EN 27-7 English

25 A Technical Data Network-specific Key feature Specification/value Protocol PROFIBUS DP Specification IEC 658 PROFIBUS chip VPC3 with DVP Feature RS485 Type of transmission Serial asynchronous, half-duplex Transmission rate [kbps] (automatic detection) Maximum cable length per segment ) [m] (at 3 2 kbps) 2 (at 5 kbps) 4 (at 5 kbps) (at 87.5 kbps) 2 (at kbps) Branch line length ) 5 kbps [m]. 6.6, 5 kbps No branch lines permitted Cable specification 2) Cable type Twisted-pair cable, screened Surge impedance [Ω] (3 2 MHz) Capacitance per unit length [pf/m]. 3 Loop resistance [Ω/km] Wire diameter [mm],.64 Wire cross section [mm²],.34 ) Dependent on transmission rate 2) According to IEC 658 (Type A) Tab. A.3 Festo CPX-E-PB-EN 27-7 English 25

26 B Terminology B Terminology Term/abbreviation Bus module Device description file DIL switch DPV GSD file I/O I/O diagnostic interface I/O module Modules CPX-E PLC Status bits System CPX-E Tab. B. Description Connects system CPX-E to the network; transmits control signals to the connected modules CPX-E and monitors their functionality. Protocol-specific file for configuring the bus module in the control software for the higher-order controller. This contains all the information required to parameterise the system CPX-E via control software. Switch consisting of several switch elements with which settings can be made (dual in-line). PROFIBUS extension for acyclic access to system data during running time. Device description file for PROFIBUS (generic station description) Input and output Network-independent diagnostic interface at I/O level, which enables access to the internal data of the system CPX-E. Collective term for modules that provide analogue or digital inputs and/or outputs. Collective term for modules that can be integrated in a system CPX-E. Programmable logic controller Internal status information (common diagnostic messages) of the system CPX-E, provided as input signals via the network. Complete system consisting of modules CPX-E. 26 Festo CPX-E-PB-EN 27-7 English

27 Bus module CPX-E-PB Index A Abbreviations, 26 Access to data records, 9 Access to diagnostic memory, 9 Address assignment, 9 Addressing, 9 Basic rules, 9 Example, 9 B Bus parameters, 2 Bus start, 2 C Channel-specific module parameters, 8 Check configuration data, 22 Chk_Cfg, 22 CLEAR_DATA, 8 Control commands, 8 CLEAR_DATA, 8 FREEZE, 8 SYNC, 8 D Data records, 7, 9 Data_Exchange, 23 Device description file, 8 Diagnosis via PROFIBUS DP, 2 Channel-related diagnosis, 5 Diagnosis bytes, 2 Diagnostic steps, 2 Identification-related diagnosis, 5 Standard diagnostic information, 4 Diagnostic memory, 9 Diagnostics options, I/O diagnostics interface, LED indicators, Status bits, Via PROFIBUS DP, 2 G GSD file, 8 I I/O diagnostic interface, Identification & maintenance, 8 Inp_Data, 23 Input data, 23 L LED indicators, Bus error, O Outp_Data, 23 Output Data, 23 P Product labelling, 5 Product version, 4 R Read diagnostic data, 22 Response times, 2 S Send parameterisation data, 2 Set_Prm, 2 Slave_Diag, 22 Status bits, SYNC, 8 System parameters, 7 T Target group, 4 Technical data, 24 Terminology, 26 Transfer data, 23 Transmission rate, 2 Transmission times, 2 F FREEZE, 8 Further applicable documents, 4 Festo CPX-E-PB-EN 27-7 English 27

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