Phoenix Contact RAD-900-DAIO6, User Manual, Page: 6 / 140

RAD-900-...
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PHOENIX CONTACT 3827_en_B
8 PLC/Modbus RTU dual mode ...................................................................................................93
8.1 Configuration via PSI-CONF software ................................................................. 94
8.2 Addressing I/O extension modules ...................................................................... 95
8.3 Watchdog ............................................................................................................ 95
9 Addressing I/O extension modules and RAD-900-DAIO6 with Modbus RTU ...........................97
9.1 Modbus function codes ....................................................................................... 97
9.2 Modbus protocol.................................................................................................. 97
9.3 Addressing registers............................................................................................ 98
9.4 Module type and error code register .................................................................... 99
9.4.1 Assigning I/O extension modules to the register ................................ 100
9.5 Modbus memory map ........................................................................................ 100
9.5.1 RAD-AI4-IFS process data ................................................................. 101
9.5.2 RAD-PT100-4-IFS process data ........................................................ 102
9.5.3 RAD-AO4-IFS process data ............................................................... 103
9.5.4 RAD-DI4-IFS process data ................................................................ 104
9.5.5 RAD-DI8-IFS process data ................................................................ 104
9.5.6 RAD-DOR4-IFS process data ............................................................ 106
9.5.7 RAD-DO8-IFS process data ............................................................... 107
9.5.8 RAD-DAIO6-IFS and RAD-900-DAIO6 process data ......................... 108
9.5.9 Complete overview of the Modbus memory map ............................... 109
9.6 Error codes and formats for analog input and output values .............................. 112
9.7 RSSI signal register ........................................................................................... 113
10 Detecting and removing errors................................................................................................115
10.1 Loopback test during serial data transmission ................................................... 121
11 Diagnostics on the wireless module........................................................................................123
11.1 Diagnostic LEDs ................................................................................................ 123
11.2 LED bar graph ................................................................................................... 125
11.3 Diagnostics via PSI-CONF software .................................................................. 128
11.3.1 Recording parameters ....................................................................... 130