Phong

Send_Receive Message on M251

1 post in this topic

Dear All

I have some trouble.

I'm trying to send message from module 3G GSM to port 502 of PLC M251 through internet.

- Port 502 of PLC M251 opened. I used port forwarding.

- Program send message is ok.

- At PLC M251 receive message, I write program receive as below image, but I cannot receive message.

Please help me some advise. Thank alots.

 

Send_Rv.png

Send_Rv1.png

Send_Rv.png

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