Configuration Method for Solidot Remote I/O Module XB6S-MT2002 in Mitsubishi GX Works3 Software

Simple CPU communication enables economical data exchange between same-series or different-series CPUs. Below details the setup between Mitsubishi PLC and Solidot Remote I/O XB6S Modbus TCP coupler:

1.Set IP Address

Search the default IP (192.168.1.120) of XB6S-MT2002 in browser → Change to 192.168.3.120 (ensure same subnet as PLC, e.g., subnet 3).

2.GX Works3 Configuration

• Create new project → Open PLC Ethernet port settings → Enable "Simple CPU Communication".

In detailed settings: Set Communication Type to Read/Write

• Port: Target=502 (fixed), Local port≥1024 (must differ for read/write).

• Target Device: MODBUS/TCP device (mandatory)

3.Bit Device Mapping

• Read Input: Function Code=02, Start Address=0

• Write Output: Function Code=15, Start Address=0

• Length: Set as required.

4.Word Device Mapping

• Read Input: Function Code=03/04, Start Address=0

• Write Output: Function Code=16, Start Address=0

• Length: Set as required.

5.Apply & Validate

• Download configuration → Reset PLC.

• Test Output: Control Y100 → DO Channel 1 → Short to DI (X100).

Test Analog: Write D1100 → AO Channel 1 → Short to AI (D1000).

Note: Analog range adjustment requires XB6S-MT2002 web configuration (disconnect PLC first).

For further assistance, contact Solidot technical support.