9/5/2018 11:09 AM | |
Joined: 10/7/2005 Last visit: 9/12/2024 Posts: 3020 Rating:
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Hello ZhZl I'll hazard a guess and say you have the "DIA" dip switch set to ON position on the DP/DP coupler. If so, the first bit in the first configured input byte indicates that the data is valid (bit is "1") or invalid (bit is "0") and can thus not be used for your normal data exchange. See also chapter 4.2.2 of the DP/DP coupler manual for more. |
Last edited by: Jen_Moderator at: 9/5/2018 1:41:29 PMOptimized link. Cheers |
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