CREVIS NA-9189, User Manual

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FnIO MODBUS Adapter NA-9189
FnIO S-Series
Copyright(C) CREVIS Co.,Ltd Support +82-31-273-6453 URL : www.crevis.co.kr
5.2.1. NA-9189 ...................................................................................................................................................... 18
5.2.2. MODBUS/TCP IP Address Setup ...................................................................................................... 18
5.2.3. I/O Process Image Map ....................................................................................................................... 23
5.2.4. MODBUS Interface Register / Bit Map .......................................................................................... 23
5.3. Example ....................................................................................................................................................... 24
5.3.1. Example of Input Process Image(Input Register) Map .......................................................... 24
5.3.2. Example of Output Process Image(Output Register) Map .................................................. 27
6. MODBUS/TCP INTERFACE .................................................................................................................................... 29
6.1. MODBUS/TCP Protocol ........................................................................................................................ 29
6.1.1. Comparison of MODBUS/TCP And MODBUS/RTU ................................................................. 29
6.1.2. MODBUS/TCP MBAP Header ............................................................................................................ 30
6.2. Supported MODBUS Function Codes ............................................................................................ 30
6.2.1. 1 (0x01) Read Coils ................................................................................................................................ 31
6.2.2. 2 (0x02) Read Discrete Inputs ........................................................................................................... 31
6.2.3. 3 (0x03) Read Holding Registers ..................................................................................................... 32
6.2.4. 4 (0x04) Read Input Registers ........................................................................................................... 33
6.2.5. 5 (0x05) Write Single Coil ................................................................................................................... 34
6.2.6. 6 (0x06) Write Single Register .......................................................................................................... 35
6.2.7. 8 (0x08) Diagnostics .............................................................................................................................. 36
6.2.8. 15 (0x0F) Write Multiple Coils ........................................................................................................... 38
6.2.9. 16 (0x10) Write Multiple Registers ................................................................................................. 39
6.2.10. 23 (0x17) Read/Write Multiple Registers ..................................................................................... 40
6.2.11. Error Response ......................................................................................................................................... 41
6.3. MODBUS Special Register Map........................................................................................................ 42
6.3.1. Adapter Identification Special Register (0x1000, 4096) ......................................................... 42
6.3.2. Adapter Watchdog Time, other Time Special Register (0x1020, 4128) ......................... 43
6.3.3. Adapter TCP/IP Special Register (0x1040, 4160) ...................................................................... 44
6.3.4. Adapter Information Special Register (0x1100, 4352) ............................................................ 45