[connection problem with V350 PLC to Kepwere OPC using modbus TCPip]

Hi Flex, thank you for your help.

It's look like i success to overcome the problem.

Best regards 

 

 

[connection problem with V350 PLC to Kepwere OPC using modbus TCPip]

 

Hi all I have  connection problem with V350 PLC (slave) to Kepware OPC  using modbus TCP/IP.

some background :

1. the plc holding  register is MI201 (the address we maintain is 400202, data type: short ).

2.all other values that was needed to create the tag was maintained as default values .

3. I have checked there is a  ping  from my machine to the plc . 

4.when I running the QC in the OPC  the tag quality is" BAD" and the value is "unavailable".

what you supposed my next step should be to solve this issue and read the value ?