Modbus TCP and Serial together on FX3u

[wlederer]

Dear colleagues, is it possible to operate two working Modbus units on one PLC (FX3u)? For example, one as serial Master with FX3U-485ADP-MB and another TCP Server with FX3u-ENET-p502?

 

 

[kaare_t]

Yes, using one serial module and one ENET-P502 module. The ModbusTCP function is pure code (a function block), so there won't be any issues with the standard serial Modbus module.

[wlederer]

Thank You kaare_t for the answer. What are PLC parameters required (ch1, ch2) in this case?

 

[kaare_t]

It would be the same as for any other setup (the ADP card is not affected by the ENET module).