1. Introduction. Be sure to read the release notes in section 10 before operating the Unit.

Transcription

1 1. Introduction This manual describes the ways of configuring and monitoring the operation of the PROFINET IO Controller CJ1W-PNT Sample Version V0.00 V67.06 V0.00 (Internal release V6.29). Be sure to read the release notes in section 10 before operating the Unit.

2 2. Basic Operating Procedure 2.1 Overview The following sequence provides an overview of the installation procedures. For experienced installation engineers, this may provide sufficient information. For others, cross-references are made to various sections of this manual where more explicit information is given. Mount the PROFINET IO Controller Unit on to the PLC Select a unique UNIT Number (0 - F) for the Unit using the rotary switch on the front of the Unit Connect the PROFINET IO Controller Unit to the PROFINET IO network Switch ON the power supply for the PLC and create a PLC I/O table in CX-Programmer. See CX- Programmer User Manual (Reference No. W361) Configure the PROFINET IO Controller Unit using CX-ConfiguratorFDT on the PC (See section 7 Configuration). Download configuration data to PROFINET IO Controller Unit. PROFINET IO Controller will enter data exchange with all configured and active IO Devices, confirmed by the NS LED continuously lit Green. Check status of other LED Indicators 2.2 Preparations for Communications 1,2,3. 1. Mount the PROFINET IO Controller Unit on the PLC system. Treat the Unit as a CPU Bus Unit. It can be mounted to a CPU Rack or Expansion Rack. Number of Units: 16 (Max). 2. Set the Unit No. (UNIT No.) for the PROFINET IO Controller Unit. 3. Connect a PC or a Programming Device to the PLC and turn ON the power supply to the PLC. 4. Generate the I/O tables and restart the PLC. 5. Install CX-ConfiguratorFDT, and the DTMs on the PC. 2.3 Procedure Prior to Starting Communications Use the following procedure to configure the Unit using CX-ConfiguratorFDT and the PROFINET IO Controller DTM: 1,2,3. 1. Wire the network, to connect the PROFINET IO Controller Unit to the IO Devices. 2. Turn ON the PLC power supply and the power supplies of the IO Devices on the network. 3. In CX-ConfiguratorFDT, create a network and define the parameters and I/O configurations for the PROFINET IO Controller Unit and the allocated IO Devices. Choose the update rate for each IO Device. 4. Use the Network Scan function in the PROFINET IO Controller DTM to assign the Device Names to the actual IO Devices in the network. This requires an Ethernet connection between PC and IO Devices. 5. Download the network configuration to the PROFINET IO Controller Unit. After downloading the configuration, the IO Controller DTM will restart the PROFINET IO Controller Unit. 6. After restarting the PROFINET IO Controller Unit it will automatically build up IO connections. To start exchanging IO Data it is necessary to set the Provider Status bit CIO n.12.

3 3. Indicators The PROFINET IO Controller Units are equipped with LED indicators that indicate the operating status of the node itself and the overall network. 1,2,3 1. Two two-color status indicators (two-color: green or red LEDs) 2. Two one-color Ethernet indicators (one yellow and one green LEDs) 3. A two-digit, 7-segment display Status Indicators: MS, NS, 100M and COMM The MS (Module Status) indicator indicates the status of the node itself and the NS (Network Status) indicator indicates the status of the network. The COMM and 100M indicators indicate the status of Ethernet communications. The following table shows the meaning of these indicator conditions. Indicator Colour Status Meaning MS Green ON Initialization successful, Unit is in normal operation Flashing No connection to the Ethernet Network. Red ON A non-recoverable, non-fatal error has occurred. (Watchdog timer error, memory error, or system error.) Replace the IO Controller Unit. Flashing A recoverable, non-fatal error has occurred. (Structure error, switch setting error, PLC initialization error, PLC interface error, or routing table error.) Correct the error and reset the Unit. -- OFF Power isn t being supplied or the Unit is being reset. NS Green ON PROFINET IO data exchange with all active IO Devices. Flashing PROFINET IO Acyclic communication exists. Red ON An error occurred in the PROFINET IO interface of the Unit (see [7-2 Troubleshooting using LED indicators]). Flashing The Unit s PROFINET IO Configuration is not available or incorrect. -- OFF The Unit is in OFFLINE mode. PROFINET Communications are not possible. 100M Green ON PROFINET IO data exchange with at least one active IO Device. OFF No PROFINET IO data exchange with any of the active IO Devices. COMM Yellow ON Ethernet Communication is active -- OFF No Ethernet Communication active <> Yellow ON Always ON Note Unless otherwise specified, the frequency of a flashing LED is 1 Hz (50% duty cycle).

4 Seven segment display The following table shows the functions of the 7-segment digits: Status Display PROFINET Communications active and Displays character Lit normal. r The Unit contains an error. Error code value Lit Error Code There is no priority in the error codes; all errors will be displayed as they occur. All error codes consist of a combination of a letter and a number, so they can be distinguished from the other state indications immediately.

5 4. Switch Settings The Unit Number Setting Switch sets the CPU Bus Unit number. This number determines the CIO area allocated to the Unit for software switches and the status data. Setting method One-digit hexadecimal Setting range 0 to F Note 1. The unit number is set to 0 at the factory. 2. Any unit number from 0 to F can be set as long as it hasn t been set on another CPU Bus Unit connected to the same PLC. 3. Use a small flat-blade screwdriver to turn the rotary switches; be careful not to damage the switch. 4. Always turn OFF the PLC before changing the unit number setting. 5. If the unit number is the same as one set on another CPU Bus Unit connected to the same PLC, a duplicate number error will occur in the PLC and it will not be possible to start up the PROFINET IO network. The lower two rotary switches are reserved for future use.

6 5. Ethernet Connector The following standards and specifications apply to the connectors for the Ethernet twisted-pair cable. Electrical specifications: Conforming to IEEE802.3 standards. Connector structure: RJ45 8-pin Modular Connector (conforming to ISO 8877) Connector Signal name Abbr. Signal direction pin 1 Transmission data + TD+ Output 2 Transmission data - TD- Output 3 Reception data + RD+ Input 4 Not Used Not Used Reception data - RD- Input 7 Not Used Not Used Shield SHELL ---

7 6. Allocated CIO Area Words The start address n of the allocated CIO Area is determined by the UNIT Number m : n = *m 6.1 Software Switches 1 (Word n) The Software Switches 1 word has the basic control functions related to the PROFINET IO Controller function. Word n Set Provider Status Bit 00 to 11 Reserved, must be OFF Bit 12 Set Provider Status OFF: Mark all data send by the IO Controller as bad. IO Devices will ignore the data. ON: Mark all data send by the IO Controller as good. IO Devices will accept the data and process it. Bit 13 to 15 Reserved, must be OFF 6.2 Unit Status (Word n+4) The Unit Status word contains a high-level status and error overview of the IO Controller and IO Devices. More detailed information can be found in subsequent words. All flags are controlled by the Unit. Word n Unit error flag Controller error flag Error log contains errors flag Configuration transfer in progress Local Config. storage error flag Local Configuration load error flag File Read error flag Error log storage error flag

8 Bit Name Specification 00 Unit error flag The Unit error flag will be turned ON if any of the bits in the range of Bit 01 ~ 15, excluding bit 04 in the Unit Status Word is set to ON (OR of Bits 01 ~ 03, 05 ~ 15). OFF None of the Bits 01 ~ 02, 05 ~ 15 in the Unit status word is set to ON. ON At least one of the Bits 01 ~ 02, 05 ~ 15 in the Unit status word is set to 01 Controller error flag ON. The Controller error flag will be turned ON if any of the bits in the range of Bit 00 ~ 15 in the Controller Status 2 word is set to ON (OR of Bits 00 ~ 15). OFF ON None of the Bits 00 ~ 15 in the Controller Status 2 word is set to ON. At least one of the Bits 00 ~ 15 in the Controller Status 2 word is set to ON 02 Reserved These bits are always set to OFF by the unit. 03 Error log contains errors flag The Error log flag will be turned ON if the Error log contains one or more new errors. It will be cleared if the Error log has been read or cleared. OFF The Error log contains no more new error entries. It has been read or it has been cleared. ON The Error log contains one or more new error entries. 04 Configuration transfer in progress The Configuration transfer in progress flag will be turned ON during the process of transferring the configuration database from one location in the unit to another, or from the unit to the outside (i.e. Configurator or flash card). OFF No configuration database transfer in progress. ON The configuration database is being transferred, either: From the Configurator to the unit's volatile memory. From volatile memory to non-volatile memory and vice versa. From volatile memory to the stack. From unit to the flash card. 05 Reserved This bit is always set to OFF by the unit. 06 Local Configuration storage error flag The Local configuration storage error flag will be turned ON if an error occurred during an attempt to transfer the PROFINET configuration sets from volatile to non-volatile memory. The flag will be turned OFF if a successful storage attempt is made. OFF The local storage of the PROFINET configuration sets has been completed successful. ON The local storage of the PROFINET configuration sets has failed. The Local configuration load error flag will be turned ON if an error occurred during an attempt to transfer the PROFINET configuration sets from non-volatile to volatile memory. The flag will be turned OFF if a successful load attempt is made. 07 Local configuration load error flag OFF The local loading of the PROFINET configuration set been completed successful. ON The local loading of the PROFINET configuration set has failed. 08 Reserved This bit is always set to OFF by the unit. 09 File Read error flag The File Read error flag will be turned ON if an error occurred during an attempt to transfer the PROFINET configuration sets from a file on a memory card to volatile memory. The flag will be turned OFF after a restart. OFF ON The File read attempt of the PROFINET configuration set been completed successful. The File read attempt of the PROFINET configuration has failed.

9 Bit Name Specification 10 ~ 12 Reserved 13 Error log storage error flag These bits are always set to OFF by the unit. The Error log storage error flag will be turned ON if an error has occurred in the non-volatile error log. The flag will be turned OFF if the error log has been cleared. OFF The non-volatile error log contains no errors or has been cleared. ON The non-volatile error log contains one or more errors. 14 ~ 15 Reserved These bits are always set to 0 by the unit. 6.3 IO Controller Status 1 (Word n+5) The IO Controller Status 1 word shows all status information related to the PROFINET IO Controller function. Word n Controller in ONLINE mode Controller in OFFLINE mode Controller in Data_Exchange mode Valid Configuration Provider status Bit 00 Name: Controller in ONLINE mode ON: Indicates that the Unit is in ONLINE mode. In ONLINE mode the PROFINET IO Controller Unit will configure all allocated IO Devices, and commence I/O Data-Exchange. OFF: Indicates that the Unit is not in ONLINE mode. Bit 01 to 02 Reserved by system Bit 03 Name: Unit in OFFLINE mode ON: Indicates that the Unit is in OFFLINE mode. In OFFLINE mode the PROFINET IO Controller Unit will be disconnected from the Ethernet network.

10 OFF: Indicates that the Unit is not in OFFLINE mode. Bit 04 Name: Unit in Data-Exchange ON: If set to ON, this bit indicates that the Unit is in Data-Exchange with at least one allocated and enabled IO Device. OFF: If set to OFF, this bit indicates that the Unit is not in Data-Exchange with any of the allocated and enabled IO Devices. Bit 05 to 06 Reserved by system Bit 07 Name: Unit in contains a valid configuration ON: If set to ON, this bit indicates that the Unit contains a valid Configuration. With this Configuration it can configure the allocated IO Devices and achieve Data_Exchange. OFF: If this bit is set to OFF, the Unit does not contain a valid Configuration or transfer of a new Configuration is in progress. Bit 08 to 11 Reserved by system Bit 12 Name: Provider Status This bit indicates whether or not the data sent to an IO Devices will be marked as good or bad. OFF: The data sent to the units is marked as bad. ON: The data sent to the units is marked as good. Bit 13 to 15 See description bit 01 and IO Controller Status 2 (Word n+6) The Controller status 2 word shows error information of the CJ1W-PNT21 Controller function. Contents of the Controller status 2 word (Word n+6): Word n UDP Failure Ethernet Failure Double address error Hardware error Mode command error Configuration error

11 Bit Name Specification 00 UDP Failure The UDP stack on the IO Controller is not working. 01 Ethernet Failure 02 Double address error 03 Hardware error 04~ 11 Reserved OFF UDP stack working ON UDP stack not working The Ethernet controller in the configuration of the IO Controller is not existing or not working. OFF No Ethernet Failure. ON An Ethernet Failure. Conflict of addresses. The TCP/IP address of the PROFINET IO Controller is not unique in the network. It cannot communicate. OFF No Double Address error has occurred. ON A Double Address error has occurred. The Hardware error flag will be turned ON if an error has occurred on the bus, e.g. Faulty access to the Ethernet controller or interrupted data streams, broken messages. The PROFINET IO Protocol Software cannot communicate. OFF No Hardware errors occurred. ON A Hardware error occurred. These bits are always set to OFF by the unit. 12 Mode command error 13 Configuration error 14 ~ 15 Reserved For future use OFF A valid mode command has been given. ON A mode command error has occurred. The Configuration error flag will be turned to ON if an error has been detected in the contents of the Configuration set downloaded to the IO Controller. OFF No Configuration error has been detected. ON One or more Configuration errors have been detected. This bit is always set to OFF by the unit 6.5 IO Device status (Word n+7) The IO Device status word shows information about the IO Devices allocated to the CJ1W-PNT21 Controller. Detailed information on the IO Devices can be obtained by reading the alarm messages. Contents of the IO Device status word (Word n+7): Word n All Active IO Devices in Data_Exchange All Active IO Devices have consumed output data At least one active IO Devices has consumed output data

12 Bit Name Specification 00 All Active IO Devices in Data_ Exchange 01 All Active IO Devices have Consumed Output Data 00 At least one Active IO Devices has Consumed 01 ~ 15 If all Active IO Devices allocated to the CJ1W-PNT21 are in Data_Exchange mode, this bit will be turned ON. If one of the IO Devices is not in Data_Exchange bit 00 will be turned to OFF. OFF CJ1W-PNT21 not in Data_Exchange with one or more IO Devices. ON CJ1W-PNT21 in Data_Exchange with all IO Devices. If all Active IO Devices allocated to the CJ1W-PNT21 have consumed the sent output data (ie, this Unit is dominant for this IO Device), this bit will be turned ON. If one of the IO Devices does not consume output data this bit will be turned to OFF. OFF One or more IO Devices do not consume the sent output data. ON All IO Devices consume the sent output data. If at least one of the active IO Devices allocated to this IO Controller consumes sent output data this bit will be turned ON. If none of the IO Devices consume sent output data this bit will be turned to OFF. OFF None of the active IO Devices consume sent output data Output Data ON At least one of the active IO Devices consumes sent output data Reserved These bits are always set to OFF by the unit. 6.6 IO Device Data Exchange Active Flags (Word n+9 to Word n+16) The IO Device Data Exchange Active flags indicate for each IO device if it is in Data Exchange mode with the PROFINET IO Controller Unit. The flags are allocated to a block of eight CIO words, and each bit in the block corresponds to the IO Device number as set in the DTM (IO Device Setup tab) IO Device Data Exchange flags: Word n IO Device 01~15 Word n IO Device 16~31 Word n IO Device 32~47 Word n IO Device 48~63 Word n IO Device 64~79 Word n IO Device 80~95 Word n IO Device 96~111 Word n IO Device 112~126 When an IO Device is in Data Exchange with the PROFINET IO Controller Unit to which it has been allocated, it is exchanging I/O Data with the PROFINET IO Controller Unit. It will exchange input and output data with the allocated memory of the PLC CPU. Bit -- Name: IO Device Data Exchange Active flags ON: If the bit corresponding to an IO Device is ON, it indicates that this IO Device is allocated to the PROFINET IO Controller Unit, and is exchanging I/O Data with PROFINET IO Controller Unit. In this case, the PROFINET IO Controller Unit must be in the ONLINE mode.

13 OFF: If the bit corresponding to an IO Device is OFF, it indicates that the IO Device is not in Data Exchange with this PROFINET IO Controller Unit, due to the fact that the IO Device is not allocated to this PROFINET IO Controller Unit, or the IO Device has been allocated to this PROFINET IO Controller Unit, but is forced out of Data Exchange mode, due to a communication error, or the IO Device has been allocated to this PROFINET IO Controller Unit, but is not responding, the IO Device has been allocated to this PROFINET IO Controller Unit, but is it has temporarily been disabled, the PROFINET IO Controller Unit is in OFFLINE mode 6.7 IO Device New Alarm Flags (Word n+17 to Word n+24) The IO Device New Alarm flags indicate for each IO device if it has sent a new alarm message to the PROFINET IO Controller Unit. The flags are allocated to a block of eight CIO words, and each bit in the block corresponds to the IO Device number as set in the DTM (IO Device Setup tab) IO Device Data Exchange flags: Word n IO Device 01~15 Word n IO Device 16~31 Word n IO Device 32~47 Word n IO Device 48~63 Word n IO Device 64~79 Word n IO Device 80~95 Word n IO Device 96~111 Word n IO Device 112~126 Each bit indicates if the corresponding IO Device has sent new alarm information to the IO Controller. Bit -- Name: IO Device New Alarm flags ON: The corresponding IO Device has sent new alarm information which should be read by the user with a FINS 0101 Command (see section 9). OFF: No new alarm data.

14 7. Configuration / Diagnostics by DTM Perform the following steps to configure the IO Controller for connection to the network within CX- ConfiguratorFDT. 7.1 Create network Drag-drop the devices of the network from the Device Catalogue to the network view. 7.2 IO Controller DTM Configuration Open the IO Controller DTM Configuration. Various Configuration tabs show the different settings to be made.

15 7.2.1 PLC Settings The following settings/operations should be done: 1. Set the CX-Server setting (Communication~Configure button). 2. Set the Unit Number of the Unit according the rotary switch. 3. Test the communication with the Unit (Communication~Test button). 4. Description and Firmware Version are displayed if communication settings are correct.

16 7.2.2 IO Controller Setup The following settings/operations should be done: 1. Set the IO Controller name as ID on the network. 2. Set the IP Address of the IO Controller. And the Subnet Mask. 3. Set the Auto-addressing feature for the IO module allocation of the IO Device Area Tab Please note the Provider Status Control is not functional for the IO Controller Sample Unit. The Provider Status is always controlled by the user bit CIO n.12 (see section 6.1) IO Device Setup The following settings/operations should be done: 1. Set the common Watchdog factor (total Watchdog time = Watchdog factor x Update Rate) The Watchdog time determines how long after the last valid data exchange the devices consider their connection to be lost. 2. Set the common Data Hold factor (total Data Hold time = Data Hold factor x Update Rate) The Data Hold time determines how long an IO Device will hold its outputs after the last valid data exchange with the IO Controller. This can be set longer than the Watchdog factor to allow bumpless transfer in case dual redundant controllers are used.

17 3. For each IO Device you can edit: The Device Name (which is used as identification of the IO Devices) Use only lower-case characters as per PROFINET specification. The IP Address (which is set by the IO Controller at startup of the IO Device). The Update Rate Note: Be sure to define both the IO Device Name as the IP address unique in the network. The Device no. (first column) is used as identifier for the Data Exchange/New alarm bits and the Alarm FINS commands.

18 7.2.4 IO Device Area The following settings/operations can be done if the default allocation is not desirable: 1. Set the Start Address and size of the Input and Output Areas. 2. Allocate the Input/Output modules (displayed on the top) to the specific PLC memory by drag & drop.

19 7.2.5 Network Scan The following settings/operations should be done: 1. Get the overview of all IO Devices connected to the network. 2. Make the IO Device flash its LEDs to be able to identify the Unit. Select the IO Device and click Configure~Signal. The device will flash its LEDs for thee seconds. 3. Set the IO Device Name for each IO Device connected to the network. Select the IO Device and click Configure~Set Device Name. Notes: 1. It is required for the PC to have an Ethernet connection to the Network to perform these operations. 2. Be sure to set the same IO Device name as configured in the IO Device Setup tab. 3. The IP address should NOT be set. The IO Controller will automatically set the IP address according to the configuration of the IO Device Setup tab.

20 7.2.6 IO Device DTM Settings For each of the IO Device the following settings should be done: 1. Allocate the IO modules to the IO Device according the actual configuration of the IO Device. 2. Make parameter settings in each unit as required, and transfer these to the device. Please refer to the GRT1-PNT PROFINET IO Communication Unit manual W13E (section 3.4). 7.3 Download Configuration to Unit Perform the following steps to download the configuration to the IO Controller: Close all DTM windows (Apply the changes). Select the IO Controller in the Network View. Right-click the IO Controller DTM and select Go Online. Right-click the IO Controller DTM and select Download parameters to device. Follow the instructions on the screen.

21 8. Alarms In case of specific events, one of the allocated IO Device may send an alarm to the IO Controller. This alarm data is accessible to the user application by either sending a direct FINS command or by using the IO Controller DTM. Notes: The IO Controller will automatically acknowledge the alarm at the IO Device. No user action is required to do so. The IO Controller has a buffer for one single alarm event. In case of multiple events after each other, only the latest alarm event can be read from the IO Controller. The alarm data buffer for a specific IO Device can be read as often as required. An alarm read function block is available to automatically read out the alarms to PLC memory. The alarm data can be read using the following command: MEMORY AREA READ (0101) The MEMORY AREA READ command is used to read the latest alarm event data message the PROFINET IO Controller Unit received from the specified IO Device. The command frame requires three byte data type specifier, specifying the information, and one byte specifying the IO Device address. Command format: Fins Command I/O Start address (Hex) Length (Hex) Memory Highbytbyte Mid- Low-byte High-byte Low-byte Code 0x01 0x01 0x00 0x00 0x00 0x01 ~ 0x7D 0x00 0x00 The low-byte of the Start address specifies the IO Device number of the targeted IO Device Unit (i.e. 01~80). This IO Device Number has been set in the IO Controller configuration DTM (IO Device Setup tab). Response format: Fins Command End Code Alarm Data 0x01 0x01 2B (*1) Depending on IO Device. (*2) (*1) The following end codes can be returned by the IO Controller Unit. End code (Hex) Function specification High-byte Low-byte Normal completion IO Device station not allocated to this CJ1W-PNT Service not supported by CJ1W-PNT21 model / version Command length exceeded Command length too short 11 0C Invalid Start Address code word (non-specified code used), Invalid target IO Device station address (exceeds 126), or Invalid I/O Memory Area Code (non-specified code) Stack error (*2) The alarm data is specific for the allocated IO Device. For the OMRON GRT1-PNT PROFINET IO Device, please see manual W13E appendix B PROFINET IO Alarm Message.

22 9. Release Notes CJ1W-PNT Sample Version V0.00 V67.06 V0.00 (Internal release V6.29) is provided to you for testing purposes. It is not a final product. Backward compatibility with a future official release of this product cannot be guaranteed. You may need to modify your PLC program when replacing the samples with the final product. The sample has been developed to work with Omron s GRT1-PNT PROFINET IO Devices. We cannot guarantee correct operation with other PROFINET IO Devices. Please report any problems not described in these release notes to your Omron contact person. This is valuable information for us to improve the product for market release. To configure the sample unit, use only the version of CX-Configurator FDT and the DTM provided with it. Older pre-releases of the DTM - and any configurations files made with these DTMs - will not work correctly with this sample. Downloading the network configuration in the IO Controller can be done through any connection to the PLC except the Ethernet port of the PROFINET IO Controller, as its Ethernet port will be set Offline in the process. PLC cycle time (IO Controller update cycle) must be 5 ms or more. The PROFINET update rate of any IO Device must be 8 ms or more. When installing the unit on a CJ1H-CPUxx-R or CJ2 PLC, use only Unit number 0 or 1. The function shown in the DTM to control provider status based on PLC mode is not yet implemented. It is necessary to set the Provider status bit (CIO n.12) ON in order to enable any communication through the Ethernet port (PROFINET as well as FINS communication). EM banks cannot be used as memory area for I/O data. Routing is not supported by the IO Controller. However, if you need to create a routing table for other units, the IO Controller must be included in the routing table. The IO Controller is only capable of handling one FINS over UDP request at a time. FINS over UDP can slow down PROFINET communication. When starting up the IO Controller there is a chance (approx. 1 in 8000) that the unit will not start and will show 0x88 in 'IOController status word 1'. The unit can be restarted from the PLC with the restart bit A501.xx (see CJ1 Operation Manual). A mechanism is provided to help determine if the IO Controller is alive using CIO n+5 bit 15. After you set a bit to '1', the IO Controller will reset it to '0' in the next I/O refresh. If the bit is not re-set, the unit is not working correctly. Because CIO is not necessarily updated every PLC cycle (the IO Controller is special CPU unit) a timeout of 500 ms or more is recommended. It is recommended to limit the number of IO Devices per IO Controller to 10. Larger configurations are known to start up slowly or erratically. The Data Exchange flag of an IO Device indicates that there is a valid connection between IO Controller and IO Device. It does not guarantee the validity of the data sent by the IO Device. Be aware that IO Devices may send blank (all zero) input data, e.g. immediately after startup. Duplicate IO Device names and/or IP addresses in the network may lead to undefined behaviour of the IO Controller. When the IO Controller is left running with a configuration in which an IO Device has a configuration fault, the IO Controller may stop to operate after a long time.

23 Execution of a FALS instruction in the PLC program is not seen by the IO Controller as failure of the host PLC. It will continue to exchange data with the IO Devices. Do not perform any* FINS communication with the IO Controller while it is starting up. The IO Controller may not start up correctly. * This includes having open connections to the IO Controller by the DTM (e.g. status monitoring). In case of redundant IO Controllers, when switching an IO Device off and on it can take up to 40 seconds before the IO Device is in data exchange with both IO Controllers. In case an IO Device with only input modules is included in the configuration, the unit will never indicate the status All Active IO Devices have consumed output data. The CX-Programmer software does not include a CPS file for the IO Controller. Therefore the IO Table will not recognise the Unit and will show NC Module (PN). This will not influence normal operation of the Unit with the PLC.