Omron TCP/IP

 Hi Kar Hei Lau ,

I suggest that you download a copy of Modbus Tester from Schneider Electric website - https://www.se.com/au/en/faqs/FA180037/ (how-to video is also available on this website. the tool is very easy to use), and use this tool to confirm that the configured PLC supports Modbus TCP/IP. If the test result is positive, it could be misconfiguration in your OI server.

Hope this would help.

Regards,

Jacky

Thanks Jacky for you guide, I manage to solve the problem.
I found out that the PLC only accepting one connection at a time only. If I running another scanner like modscan and Modbus Tester it will block my connection from SMC that try to connect to which I keep failing to connect. Once I disconnect the scanner connection and let SMC to connect, it works well and need to fine tune some settings inside the driver.

Thank you for your feedback and glad that you have resolved the issue.

Thank you for your feedback and glad that you have resolved the issue.