8/8/2010 4:48 PM | |
Joined: 9/28/2007 Last visit: 2/20/2024 Posts: 234 Rating: (12) |
Dear Expert I have Siemens S7 315-2DP CPU.last one month when we power on machine the cpu starts normally but after two hours it will automatically go to stop and give SF error on cpu so we have to restart the cpu and after restart its on normally. but again after few hours it again go to stop and gives SF error then we connect the plc with PG and go to online and check the cpu diagnostic buffer and there is following error. (Event 2 of 100: Event ID 16# 1381 Request for manual warm restart STOP due to: STOP caused by diagnostic interrupt (OB not loaded or not possible, or no FRB) Startup information: - Startup without modified system configuration - No difference between setpoint and actual configuration - Time for time stamp at the last non backed up power on - Single processor operation Current/last startup type: - Warm restart triggered by switch setting; last power on not backed up Permissibility of certain startup types: - Manual warm restart permitted Last valid operation or setting of automatic startup type at power on: - Warm restart triggered by switch setting; last power on not backed up Requested OB: Startup OB (OB100) Priority class: 27 Incoming event 06:22:34.377 AM 02/13/2005) i am also attaching the save fault history so please see attached file and tell me how can i troubleshoot this error AttachmentS7 315-2DP Diagnostic Buffer.zip (1567 Downloads) |
Last edited by: 256 at: 8/8/2010 4:50 PMMuhammad Munir |
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8/9/2010 10:06 AM | |
Joined: 7/28/2010 Last visit: 8/31/2024 Posts: 184 Rating: (11) |
Muhammad, 1) First create OB82 in offline code and download it to CPU so you can use the OB to track down the issue. 2) If you look at Event #6, you will see that PLC went to stop in FC17, Module 40. You have to take a look at that FC17 and see if CPU is trying to reach a module which doesn't exist. I have attached description for OB82 and how to figure out what the issue is by using OB82. Regard, Behnam www.sigmaprocess.ca AttachmentSiemens-S7 300-OB82.pdf (2375 Downloads) |
This contribution was helpful to1 thankful Users |
8/9/2010 10:24 AM | |
Joined: 10/7/2005 Last visit: 10/17/2024 Posts: 3024 Rating: (1054)
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Hello 256 it seems to methat you also have a problem with at least theAnalogue Input module at Input address 224 (e.g. faulty AI card, problems with its 24 V power supply etc.) While event 2 of your diag buffer has this module marked as "ok " again, it means that this AI modulewould have been registered at a point in time before that as "faulty"(your Diag buffer list is not long enough to have this entry). Can you upload your whole Diag buffer here to get the "whole picture"? |
Cheers |
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8/9/2010 5:27 PM | |
Joined: 9/28/2007 Last visit: 2/20/2024 Posts: 234 Rating: (12) |
Dear Thanks for your reply i am sending you the complete diagnostic buffer history. see attached file and reply me.
AttachmentDiagnostic Buffer.zip (963 Downloads) |
Muhammad Munir |
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8/21/2010 12:13 PM | |
Joined: 9/28/2007 Last visit: 2/20/2024 Posts: 234 Rating: (12) |
Dear Experts sorry for late reply. i am sending you the my detail diagnostic buffer after downloading the OB82. now tell me what i have to do next to findout the error cause. AttachmentDiagnostic Buffer.zip (1017 Downloads) |
Muhammad Munir |
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