modbus TCP/IP slave problem
Hoejin Kim from United States  [7 posts]
4 years

I have a problem with modbus TCP/IP slave.
I am trying to connect R/R to PLC. but still i  don't understand this even with documentation in your website.
Just for the test of connection, what am i going to do?
would you give me any sample or direction?
I want to see something in Message Log box.


Steven Gentner from United States  [1370 posts] 4 years

Does your PLC support ethernet? That's what the module assumes.

Other than that I don't know what more to say that is not already in the documentation. Perhaps you can find some local resources to help you understand the connection failure. Without actually having access to your machine there isn't much more that we can do.

Hoejin Kim from United States  [7 posts] 4 years
Yes, PLC is connected with Ethernet cable.
Is there any suggestion that i can try???


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