chandrakcet
Member
Hi,
I am using CP1E-NA PLC, RS-232 to RS-485 converter(Make: BB-Electronics) and one wireless gateway(Make: Banner). I have wired the RS-232 port of PLC to converter and then to RS-485 points of gateway. As per the CP1E CPU Unit Software's User Manual, I have did the port settings, programming and DM area allocation. I am trying to read the holding registers of my gateway using the function code, 03. But in PLC, I am getting the error code of 80 (i.e. response was not received from slave) in A640.02 and didn't get any response data which is starting from DM1254. Also, in CP1E CPU Unit Software's User Manual, they have provided the DM area allocation for command not for response. Can someone please share the information to solve my problem.
Regards,
Chandru
I am using CP1E-NA PLC, RS-232 to RS-485 converter(Make: BB-Electronics) and one wireless gateway(Make: Banner). I have wired the RS-232 port of PLC to converter and then to RS-485 points of gateway. As per the CP1E CPU Unit Software's User Manual, I have did the port settings, programming and DM area allocation. I am trying to read the holding registers of my gateway using the function code, 03. But in PLC, I am getting the error code of 80 (i.e. response was not received from slave) in A640.02 and didn't get any response data which is starting from DM1254. Also, in CP1E CPU Unit Software's User Manual, they have provided the DM area allocation for command not for response. Can someone please share the information to solve my problem.
Regards,
Chandru