3/10/2022 7:46 AM | |
Joined: 1/17/2022 Last visit: 8/10/2023 Posts: 1 Rating: (0) |
Hello Sir, I need your help. I am a newbie . I am trying to establish Modbus communication with the help of the Modbuspn block. I have managed to make the block work in a small Modbus plc program, and communicate via Modbus to a master(where the plc was used as a slave). However when I load the block into a prewritten big plc program which needs Modbus communication, every time I right click on Init in the Modbuspn block to initialize it, this action causes the plc to stop. Can you help me please? I am attaching my diagnostic buffer. Thanks in advance.
AttachmentDiagnose12.txt (554 Downloads) |
3/10/2022 2:26 PM | |
Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating: (1054)
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hi Brandy#123, it seems that you programmed a loop and the PLC is going into a time-error. Have a look to this FAQ: How do you establish a Modbus/TCP communication from a SIMATIC S7-300/S7-400 and where can you find further information?you will find a download of application samples and demos, that show how it works. hope this helps, regards |
FCK WAR! |
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