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DP Coupler Issue

Created by: Ebrahim_1 at: 7/8/2014 9:31 PM (3 Replies)

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7/8/2014 9:31 PM	Rate (0)
Ebrahim_1 Posts: 79 Rating: (1)	Hello, I Have a dp coupler that ties two master plcs. let say PLC1 and PLC2. When I unplug the profi connector from PLC1, PLC2 inputs still reading the last values of the output PLC1. I was thinking that they should be zeros? since PLC1 is unpluged? regards ebrahim
Ebrahim_1 Posts: 79 Rating: (1)	Last edited by: Ebrahim_1 at: 7/8/2014 9:32 PM
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7/8/2014 11:29 PM	Rate (1)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 5/30/2023 Posts: 12025 Rating: (2594)	Hello ebrahim; The information contained in this FAQ might enlighten you: Behavior of the DP/DP coupler when a master system fails Failure of a DP master is not recognized if the input data is checked on the other side of the DP master concerned. Even in the event of a master system failure the DP/DP coupler keeps its outputs at the last valid value. Hope this helps, Daniel Chartier

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This contribution was helpful to 2 thankful Users Ste39 Ebrahim_1

7/9/2014 1:43 PM	Rate (0)
Ebrahim_1 Posts: 79 Rating: (1)	thank you.
Ebrahim_1 Posts: 79 Rating: (1)
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8/18/2015 9:31 AM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4813 Rating: (123)	New question published by roobin is split to a separate thread with the subject Profibus DP Coupler card power failure. Best regards Min_Moderator

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