5/18/2017 9:57 PM | |
Joined: 9/27/2006 Last visit: 9/4/2024 Posts: 12282 Rating:
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Hello Hans; The standard way ot decoupling a Profibus slave or a Profinet IO device from the bus (in TIA Portal) is the instruction D_ACT_DP: How do you enable and disable DP slaves and IO devices using the "D_ACT_DP" instruction? You use D_ACT_DP to make sure that the missing or defective node is not interrogated on the bus, so no error code is generated, no diagnostic OB is launched, However, to reintegrate the node in the bus you need to recall D_ACT_DP a second time.You could prepare a function in your program that would call D_ACT_DP (with adequate parameters) under the right conditions, to reintegrate the missing node without having to connect to the CPU with TIA Portal. You would need an external signal to launch that function, I leave that to your imagination. Hope this helps, Daniel Chartier |
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5/31/2017 10:48 AM | |
Joined: 5/24/2009 Last visit: 3/27/2024 Posts: 90 Rating:
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