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Diagnostic buffer

Created by: Yolaw at: 10/24/2012 11:57 AM (5 Replies)

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10/24/2012 11:57 AM	Rate (0)
Yolaw Posts: 6 Rating: (0)	Hi I'm using a CPU319-3 PN/DP in my conveyer project. The problem is that i have SF led let all the time on my CPU, I have attached my diagnostic buffer can anyone please tell me the meaning of the error massages. Attachment Conveyers Diagnose.zip (212 Downloads)
Yolaw Posts: 6 Rating: (0)
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10/24/2012 5:46 PM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, It looks like you forgot to download a DataBlock or wrong version is in PLC. Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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10/24/2012 6:17 PM	Rate (1)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/6/2024 Posts: 6852 Rating: (1365)	Yolaw Hi I'm using a CPU319-3 PN/DP in my conveyer project. The problem is that i have SF led let all the time on my CPU, I have attached my diagnostic buffer can anyone please tell me the meaning of the error massages. Hello, In case of missing DB,error logged in buffer should be like: Diagnostic Buffer Event 3 of 28: Event ID 16# 253A DB not loaded DB number: 4 OB number: 1 Module address: 6 Requested OB: Programming error OB (OB121) OB not found, or disabled, or cannot be started in the in the current operating mode Internal error, Incoming event But what I have read in your attachmnet indicates that CPU wants to write in an address (Double Word) of a global DB but it is not existing.It can be a programming error or problem may happen in indirect addressing(in combination with loops).And the following is what I have recreated.I sugget uploading program here for fault finding or use "OPEN BLOCK" button in Module information window (See the attachment). Diagnostic Buffer Event 11 of 28: Event ID 16# 2523 Area length error when writing Global DB, word access, Access address: 450 OB number: 1 Module address: 8 Requested OB: Programming error OB (OB121) OB not found, or disabled, or cannot be started in the in the current operating mode Internal error, Incoming event Best regards, Hamid Hosseini Attachment buffer.jpg (269 Downloads)
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This contribution was helpful to 2 thankful Users dchartier Marcjan

10/25/2012 5:56 PM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, You are right Hamid, thanks for the correction and possible causes of this problem I wonder when did this problem start, after changing the program or did it happen while running after some time? Let us know, or better upload the program for us to evaluate. Regards,
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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This contribution was helpful to 1 thankful Users hdhosseini

10/30/2012 7:58 AM	Rate (0)
Yolaw Posts: 6 Rating: (0)	Hello Thank you Marcjan and Hdhosseini for responding, much appreciated. Hdhosseini the "open block" button on the diagnostic buffer is grayed out so i cannot press it. Marcjan this program has been running for years now and there has been no change done on it i noticed this problem while the program was running. I have tried to upload the program by attaching it last week but the post i created had a problem becausemy attachement was too large.Is there any other way i can upload this program?
Yolaw Posts: 6 Rating: (0)
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10/30/2012 8:07 AM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, you can contact a Moderator to help you post the program. Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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