Grows a new one, the first to develop c # PC, when use it to communicate with PLC, can't pass, then draw out, the Ethernet cable from the switch directly to the PLC, it communications,
Equipment here but I should be with switches, warrior would you teach, c # on PC how to through the network switch and PLC communication?

CodePudding user response:

Newsletter to check the network, it has nothing to do with PC/PLC, have to check the IP the same local area network (LAN), PC firewall etc.
TCP is used? Opc? Or components of PLC party?

CodePudding user response:

IP problem, check two cases device IP address is changed

CodePudding user response:

Can ping the IP switch and have a look

CodePudding user response:

Thank you very much the support of the warrior, communication not again today, I think may be related to the switch it doesn't matter, below is my computer adapter, warrior as I see, what is the problem?
I here is the company has a Wifi, then my computer with Ethernet cable connected to the PLC, my computer can use the Wifi also can use broadband Internet access

CodePudding user response:

The PLC address is 192.168.0.9
My computer has two adapters, address as shown in figure

CodePudding user response:

Personal advice give up

If you don't give up personal advice don't connect wifi

If you have to connect the wifi please ensure wifi is not 0 section

If your wifi must be 0 section please add a routing change network to

So, did you ping PLC?

CodePudding user response:

refer to 6th floor qq_30335331 response:

personal advice give up

If you don't give up personal advice don't connect wifi

If you have to connect the wifi please ensure wifi is not 0 section

If your wifi must be 0 section please add a routing change network to

So, did you ping PLC?

I am broken wifi first, and even the PLC,