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MP377 doesn't reconnect Automatically after profibus fault

Created by: BrunoAnt at: 7/22/2013 10:23 AM (11 Replies)

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7/22/2013 10:23 AM	Rate (0)
BrunoAnt Posts: 6 Rating: (0)	Hi, I have 16 MP377 connected to a CPU317-2PN/DP through a profibus DP network. They are working correctly. But after a network disconnection in one of them, then a reconnection, it stays infaultconnection and the datas from the CPU are not refreshed. For the moment, the only solution is to switch off, then on the power supply. It's the same problem for each of them. Do you have any idea why?
BrunoAnt Posts: 6 Rating: (0)
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7/24/2013 11:47 AM	Rate (0)
Sandman Platinum Member Joined: 4/29/2010 Last visit: 1/20/2025 Posts: 1557 Rating: (161)	Hello BrunoAnt, how many OP-resources do you reserve at your CPU? Can you check if the "Cyclic operation" option is activated at your communication settings in WinCC flexible. With best regards.

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7/25/2013 10:29 AM	Rate (0)
BrunoAnt Posts: 6 Rating: (0)	Hello Sandman, The "OP ressources" on the CPU is set to "1". The "Cyclic operation" option is activated well, in WinCC flexible.
BrunoAnt Posts: 6 Rating: (0)
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7/25/2013 3:04 PM	Rate (0)
Ste39 Posts: 4620 Rating: (710)	Hi BrunoAnt, Have you tried to put 16 in OP-resources?
Ste39 Posts: 4620 Rating: (710)
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7/30/2013 11:27 AM	Rate (0)
BrunoAnt Posts: 6 Rating: (0)	Hi Ste39, I did not try to put 16 in Op-Ressources for the moment. I'll try soon and i'll inform you about the result. Thanks!
BrunoAnt Posts: 6 Rating: (0)
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This contribution was helpful to 1 thankful Users Ste39

7/30/2013 12:36 PM	Rate (0)
Sandman Platinum Member Joined: 4/29/2010 Last visit: 1/20/2025 Posts: 1557 Rating: (161)	BrunoAnt Hello Sandman, The "OP ressources" on the CPU is set to "1". The "Cyclic operation" option is activated well, in WinCC flexible. Every connected panel needs 1 OP ressource + 1 OP ressource if you have activated the "Cyclic operation" option. So you need in this case 2 OP ressources for every panel.

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7/30/2013 5:00 PM	Rate (0)
BrunoAnt Posts: 6 Rating: (0)	So, if i understand, as the"Cyclic operation" option is activated in the 16 panels,i have to put 32 in "op-ressources"?
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7/30/2013 5:14 PM	Rate (0)
Ste39 Posts: 4620 Rating: (710)	Hi Yes try and let us know
Ste39 Posts: 4620 Rating: (710)
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9/10/2013 4:56 PM	Rate (0)
BrunoAnt Posts: 6 Rating: (0)	Hello, sorry for my silence. For the moment, we can not make the modification. But In OP ressources, I can only put 28 because I have 1 ressource for PG communication and 3 ressources for S7 communication. Is this a problem or not?
BrunoAnt Posts: 6 Rating: (0)
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9/11/2013 11:25 AM	Rate (0)
Tweety Posts: 3037 Rating: (192)	Hello, Which PLC do you use? How many panel do you use on the bus? Tweety
Tweety Posts: 3037 Rating: (192)
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