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Every so often a write command seems to not be processed by the PLC. Regardless of single write of multi var write. Only happens to S7-1500. Tried with S7-1200 and this PLC does not experience this problem. Also tried different firmware versions of S7-1500. Wireshark shows the write command, and it is also confirmed by the PLC with a success, however, the actual value in the PLC is not changed. Any solution to this? |
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Replies: 2 comments 1 reply
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Solution found, I used the data I was writing to as a INOUT variable somewhere in the application... |
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And don't forget to ⭐ the project 👍 |
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Wow! Happy to hear you found the solution in only 30 minutes! 😄 |
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Solution found, I used the data I was writing to as a INOUT variable somewhere in the application...