5/23/2020 7:55 PM | |
Posts: 20 Rating: (1) |
Hello guys, few days ago I have run my software for communication with other device for temperature measurement via RS232. I am using CPU - S7-1200 - 1214C DC/DC/DC (V4.2) Than standard RS232 cable connected with device. Just for your information - the device output is TTY loop and there is one converter from equipment manufacturer TTY - RS232C. Function for communication is attached. Now about the problem. Everything worked properly until yesterday morning - the communication stucked in STEP 2 - I send the request for send the temperature to device but the device was not response. I was checking the connection and code again but nothing was changed.. Now I see only that RX and TX on the CM module blink for one moment together and sometimes I "receive" the same message what I sent to the device.. Blocks for sending and receiving messages are not in fault: RCV Status: 7002 I have tried also Point - to - Point block - but nothing Its strange for me because It was working for some days. Thank you in advance for your time and support. AttachmentCOMM_RS232.pdf (110 Downloads) |
5/23/2020 8:01 PM | |
Posts: 20 Rating: (1) |
+ DB structure with same message received as sent. |
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