1/22/2012 12:06 PM | |
Joined: 10/7/2005 Last visit: 9/22/2024 Posts: 3021 Rating: (1054)
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Hello Mohammad Abu-Sido I haven't had this problem before, but it definetely is problem that should NOT happen in a properly functioning SWR system. If the Master CPU goes down, the Standby CPU musttake over control of the ET200M's I/O's as also clearly explained inchapter 4.1of the Software Redundancy Manual. The only explanation for this "misbehaviour" I can offer is that perhaps the there is a Problem with the Profibus on the Standby CPU. Questions: 1.) Is there anyhting useful in the Diagnostic Buffer of the "Standby" CPU after youswitch of the Master CPU? 2.) Is the Bus Fault (BF)LED lit"Standby" CPU after you switch of the Master CPU? I hope this helps and please let us know what you find. |
Last edited by: fritz at: 1/23/2012 6:47 AMAdded Questions Last edited by: fritz at: 1/23/2012 12:41 AMfixed quotes Cheers |
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1/23/2012 9:19 AM | |
Posts: 325 Rating: (13) |
Hi Muhammed, My earlier reply was for modules hot-swap using 300 CPU. Sorry, since I couldnt read your question properly. Regards Nil |
1/24/2012 8:48 AM | |
Joined: 10/7/2005 Last visit: 9/22/2024 Posts: 3021 Rating: (1054)
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Hello Mohammad Abu-Sido all I can suggest is that you do some or all of the following tests to start a process of elimination and find out where the problem is/could be(e.g. CPU, SWR configuration, IM153-2's etc.): 1.) Physically swap the two CPU's but keep their original"A" and "B" program in them (if they are side by side, simply swap the DP lines over which basically achieves the same). Result? 2.) Leave the CPU's swapped but reload them completely with their partners program (i.e. original CPU "B" now hasCPU's "A" program in it and vice versa. Make sure to delete all Blocks and especially DB's online so that the startup can properly recreate the three SWR "system" DB's (DB_WORK_NO, DB_SEND_NO and DB_RCV_NO)). Result? 3.) Swap the IM153-2 around. Result? I hope this helps |
Cheers |
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1/25/2012 12:23 PM | |
Posts: 47 Rating: (3) |
1) Check switch on the both IM153-3 - itmust besame. 2) show text OB100. |
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