1/12/2012 5:09 AM | |
Posts: 9 Rating: (0) |
Hello,, i have a problem with IM 153-2 Y link. when i opened DP Slave diagnostic, it's said all my slave is failed. the SF lamp on IM153-2 is on and BF 2 lamp is flashing. i use S7 400 H system and IO system Wago 750-301. i have already testes the profibus connection using PBT, and it's good. i have attached printscreen ofhw config and DP Slave Diagnostic Many thanks, Jayoo AttachmentPictures.zip (258 Downloads) |
1/12/2012 5:31 AM | |
Joined: 10/7/2005 Last visit: 9/19/2024 Posts: 3021 Rating: (1054)
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Hello Jayoo if you are confident that the Profibus from the Y-Link to the Wago DP slaves is ok, then all i can offer as an explantion is a faulty Y-Link (or all Wago DP Slaves are faulty). Can you test the following: Make up a new simple Profibus "patch" cable and connect the Y-Link to only one of the Wago DP Slaves (e.g. the one closest to the Y-Link). The result will give you more clues as to where the problem may be (e.g. if the WagoDP Slave becomes healthy, youdo actually have a cabling problem). I hope this helps and please let us know what you find. |
Cheers |
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1/12/2012 6:48 AM | |
Joined: 10/7/2005 Last visit: 9/19/2024 Posts: 3021 Rating: (1054)
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Hello Jayoo I fear so and the Y-coupler (6ES7197-1LB00-0XA0) would be the next obvious device on my list to replace for a test. If that doesn't help, it would have to be a (well all)faulty Wago DP Slave. Questions: 1.) I presume you have set the correct Node address on each Wago DP Slave, haven't you? (whih could also explain the problem). 2.) Was this working before or is this is brand new installation? |
Cheers |
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1/12/2012 8:01 AM | |
Joined: 10/7/2005 Last visit: 9/19/2024 Posts: 3021 Rating: (1054)
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Hello Jayoo I would start by replacing only the Y-Coupler as itis the most likely candiate (which is not to say that it can't be something else, but at least you follow a properprocess of elimination). Your pictures show also that you can reach the redundant IM153-2 pair and that it is the underlying single DP Master system (which is created by the 6ES7197 Y-Coupler)that has the problem. There are of course no guarantees that it is only the Y-Coupler (or that it is the Y-Coupler at all), so having spare IM153-2 at hand is always a good idea. |
Cheers |
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1/13/2012 3:45 AM | |
Posts: 9 Rating: (0) |
Hello fritz, I have changed my y coupler, and it'ts normal now. Thank you very much for your help. Jayoo |
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