WAGO-I/O-SYSTEM 750 I/O Modules 237758-874/000-131 WAGO-I/O-IPC-C6ManualVersion 1.0.0Pos: 60.16 /Serie 750 (WAGO-I/O-SYSTEM)/Prozessabbild Mapping/ETHERNET - EtherNet/IP - MODBUS/TCP/PA ETHERNET - Sonderklemmen (Intel, mit word-alignment) bis KNX-Klemme @ 7\mod_1272352385583_21.doc @ 55796 @ 3444444444444444 @ 118.2.5 Specialty ModulesWAGO has a host of Specialty I/O modules that perform various functions. Withindividual modules beside the data bytes also the control/status byte is mapped inthe process image.The control/status byte is required for the bidirectional data exchange of themodule with the higher-ranking control system. The control byte is transmittedfrom the control system to the module and the status byte from the module to thecontrol system.This allows, for example, setting of a counter with the control byte or displayingof overshooting or undershooting of the range with the status byte.The control/status byte always is in the process image in the Low byte.Information to the structure of the Control/Status byteFor detailed information about the structure of a particular module’s control/statusbyte, please refer to that module’s manual. Manuals for each module can be foundon the Internet under: http://www.wago.com.18.2.5.1 Counter Modules750-404, (and all variations except of /000-005),753-404, (and variation /000-003)The above Counter Modules have a total of 5 bytes of user data in both the Inputand Output Process Image (4 bytes of counter data and 1 byte of control/status).The counter value is supplied as 32 bits. The following tables illustrate the Inputand Output Process Image, which has a total of 3 words mapped into each image.Word alignment is applied.Table 103: Counter Modules 750-404, (and all variations except of /000-005),753-404, (and variation /000-003)Input Process ImageByte DestinationOffset High Byte Low Byte Description0 - S Status byte1 D1 D02 D3 D2 Counter valueOutput Process ImageByte DestinationOffset High Byte Low Byte Description0 - C Control byte1 D1 D02 D3 D2 Counter setting value
