Modbus TCP connection to PM573-ETH Failure
I am suffering with a problem to connect to two PM573-ETH over a MOXA Mgate MB3180 (TCP to RTU converter) from 800F DCS master. I configured a TCP server(slave) connection on PM573-ETH CPU and set the IP address: 192.168.0.11 and other is :192.168.0.21 and no gateway. These two CPU are already connected to CP600 operator panels. These panels are TCP Client(master) and communication is OK. On the operator panles there are two ethernet port and they are acting like simple switch. So, I am using one port to connect panel and CPU and other port to connect cpu to Moxa converter. There is a fiber line between two sides ethernet ports. When I connect with my computer to CPU by codesys on the moxa side, I can easily connect and no problem. But when I try to connect by moxa there is no response from CPU. I am sharing the configuration parameters screenshot and monitor view as attached. Could anyone please help me about how can I solve this communication issue.
Thanks in advance.
It is a good idea to use one modbus simulator, and try to connect each device separated to simulator, in this way you can verify, if any of your devices have some cnfiguration problems, then when you have all your devices well connectd to modbus simulator, you can proceed woth your connections, also in this case you can use modbus simulator to check the data that is passing.
this is one good modbus simultaror