Hi.

I have a question for Modbus TCP setup.

Network configuration is

PLC : 192.168.10.50

Gateway : 192.168.10.1

PC :  192.168.100.150

So...  Can i receive Data through  Modbus Tcp? I'll wait for your answer

Hi dokbido.

Who is the master in your setup, the computer or the PLC?

ola84

Hi dokbido.

Who is the master in your setup, the computer or the PLC?

 Master is computer 

Hi

From the attachment it seams the PLC is connected to one of the LAN-ports on the ruter and the computer is connected to the WAN-port. To make this work you need setup the NAT-configuration of the router. TCP-port 502 on the WAN-side should be forwarded to the ip-address of the PLC on the same port. As long this is done correctly your setup should work.

Note: Setup like this should only be done inside private networks. Doing this over Internett is a major security risk. 

ola84

Hi

From the attachment it seams the PLC is connected to one of the LAN-ports on the ruter and the computer is connected to the WAN-port. To make this work you need setup the NAT-configuration of the router. TCP-port 502 on the WAN-side should be forwarded to the ip-address of the PLC on the same port. As long this is done correctly your setup should work.

Note: Setup like this should only be done inside private networks. Doing this over Internett is a major security risk. 

 I check on control room pc.  Run command - ping  192.168.10.50

But there is no connection.