Version 2.2
The function blocks in "ModbusSlave" attachment provide some of the Read/Write functionalities conformed to the specifications defined by Modbus-IDA:
Supported functions :
0x01 Read n bits in CIO area Read Coils (V2)
0x02 Read n bit in CIO area Read Discrete Input (V2)
0x03 Read DM data memory Read Holding Registers
0x04 Read CIO Read Input Registers
0x05 Write 1 bit in CIO area Write Single Coil
0x06 Write 1 word in DM area Write Single Register
0x08 Echo back Test Echo Back Test
0x0F ***** NOT SUPPORTED ****** Write Multiple Coils
0x10 Write multiple words DM Write Multiple Registers
Broadcast supported using slave n° 00
Supported CPU :
- CJ1xx-V3
- CP1H
- CP1L-L
- CP1L-M
Improvment:
V2.1 fixe a communication problem when NT link was used on the second serial port
V2.2 fixe the response "FFFF" sent when the slave No was incorrect