I have two machines (Machine-1) one with ip address 192.168.178.97 where ignition Maker is installed and the other runs the Modbus Poll software which shares values with ip 192.168.178.21 (Machine-2)
I'm trying to make a modbus connection between the two, but it won't connect.
I did the following setup:
but nothing, while if I enter localhost it works correctly, What could be the problem ?
Is the Modbus Poll software a master or a slave? What's the error in the logs? Why does localhost work, do you have slave software running there?
Thank you for answering
locally it works correctly, yes, I ran a test with Modbus slave running on the machine locally::
If I run the test with two different machines having same subnet (Ignition 192.168.178.97 and Modbus slave 192.168.178.21 ) it doesn't work, Ignition won't connect.
there aren't log
Does the second machine have a firewall thats blocking port 502?
yes, the port 502 was locked.
I have now opened the port 502 and everything works fine.