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Diagnose buffer with event ID but no info text

Created by: _njoy at: 7/26/2010 5:47 PM (3 Replies)

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7/26/2010 5:47 PM	Rate (0)
_njoy Posts: 29 Rating: (0)	Dear all, In a S7-400 system with 417-4, Ethernet comms, Profibus DP and PA, on the PLC diagnose buffer we've found these messages: Event 6 of 112: Event ID 16# 39B1 No entry in text database. Hexadecimal values will be displayed. Event ID: 16# 39B1 OB: 16# 55 PK: 16# 19 DatID 1/ 2: 16# 50 30 Additional info1 / 2 / 3: 16# 2942 0000 0218 External error, Incoming event 08:33:07.823 AM 07/24/2010 Event 7 of 112: Event ID 16# 39B2 No entry in text database. Hexadecimal values will be displayed. Event ID: 16# 39B2 OB: 16# 55 PK: 16# 19 DatID 1/ 2: 16# 50 30 Additional info1 / 2 / 3: 16# 2943 0000 021C External error, Incoming event 08:33:07.823 AM 07/24/2010 Each of it came in pairs and they appear from time to time (however, synchroneous with our SCADA failure, actually the reason for investigation). The only hardware issue is a slave on a PA-network, but the message is a specific one and is continuously displayed. Any ideas please? The complete export file is attached. Regards, _njoy Attachment Diagnose_PLC_24_07_2010_A.zip (71 Downloads)
_njoy Posts: 29 Rating: (0)
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7/26/2010 10:24 PM	Rate (0)
Hulzhex Gold Member Joined: 8/25/2005 Last visit: 5/25/2023 Posts: 1161 Rating: (110)	Hello _njoy, looks like your STEP 7 isn't up to date I think, that there are problems with your slaves. So you got the "I/O area access error" (This must be the Event ID 16# 39B1 I think . Does the OB 85 exist within your program? There you will be able to find more detailed information. Good luck Sabine

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7/27/2010 8:02 AM	Rate (0)
_njoy Posts: 29 Rating: (0)	Sabine, Thanks for your reply. Actually, we've got the specific diagnosis messsages regarding the I/O access error: same event ID but with text i.e. description. The reason for investigation is we suspect there's a communcation error occuring on a very irregular basis, troubling our control system. _njoy
_njoy Posts: 29 Rating: (0)
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7/27/2010 10:00 AM	Rate (0)
Hulzhex Gold Member Joined: 8/25/2005 Last visit: 5/25/2023 Posts: 1161 Rating: (110)	Hello _njoy, have you checked the entries you got within OB35? There you will find detailed information about the adresses , ... Good luck Sabine

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