Hello Sir,

I have a System in my PLC network that has to be communicated to a third party device,that device is communicating through CP340 but I have very few CP340.

And have bulk stock of CP341.so i need to use this CP341.but its not working.

Is there any Diffrence?

I have added CP341 instead of CP340 and also downloaded the Programme.

Module is showing available and Ok but now communicating.

Please advice.

Thanks in advance.

Pratik.

All are ok my friend.

I have used recieve block bcz i am not sending anything.i have used 3964(R) protocol.

With 9600 baud rate with no parity and low priority.

The same thing is working with CP340 but CP341 it doesnot work.

I have added CP in last slot of the rack.and added in hardware and downloaded.

The baud rate and parameter of the CP i have aatached for CP340.but same for CP341 it doesnt  work.

Is there anything that make 340 differ from 341.

Bcz in my third party device manual it is written that it supports 340.

Can you please guide me on this.