Hi

I try to connect two plcs, simulated in plcsim v14, by Modbus TCP protocol before I start testing on real instalation. I use an example from Entry ID: 102020340. Status modbus tcp server and client are 16#7006 and no error status bit. Client connection status "busy" is TRUE.

Connection settings are not changed from the oryginal project.

When one of plc's (ex.Server) is in stop mode the connection error status in second one plc is TRUE, so I think connection beetwen this plcsim plc's is OK. But when I change Client "request" bit to state "True" nothing is happening with values in DB block.

The server statistic in DB data block (ex."Request_Count", "Success_Count" and others are not changing - still in zero state)

Could anyone try modbus connection with two plcsim plc's?

Maybe this is not possible?

Below is a screen from watch table:

Hello,

Its works with PLC SIM Advance only ( License is required).