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OB 82 how to find out error number, incomming & outgoing

Created by: Portal at: 1/8/2015 6:13 PM (2 Replies)

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1/8/2015 6:13 PM

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Portal

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Hi all,
I have a S7-1200 with a RTD module which wire break diagnostic enabled. I want to use OB82 to detect which channel is in error and what is the error. I didn't found how to detect these signal:

- incomming or outgoing event
- error type i.e.

2	"High limit exceeded"

4	"Wire break"

SignalI'm looking for are similar to OB86_EV_CLASS and OB86_FLD_ID in OB86.

I already read this note but there is no explanation on what I need:

http://support.automation.siemens.com/WW/llisapi.dll/42781105?func=ll&objId=42781061&objAction=csView&ClusterID=42261900&foldersopen0=%2D227%2D226%2D175%2D174%2D173%2D251%2D&nodeid0=41885258&lang=en&siteid=cseus&aktprim=0&extranet=standard&viewreg=WW&load=treecontent&start=%2711%27&csSort=%2DDOCDATUMBEITRAG&subtype=130000

6/15/2015 12:38 PM	Rate (0)
nasibe Posts: 62 Rating: (0)	Hi I want to use OB82 to show hardware faults in wincc pictures,so i program it with #OB82_MDL_ADDR,and check its value with my cart address. but my AI input cart is 512 and also AO cart start with 512,how should I address them?How does OB82 recognize which have fault?AI or AO? my HW is redundancy 400H. I would be grateful if help me.
nasibe Posts: 62 Rating: (0)
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6/15/2015 1:46 PM	Rate (0)
MicroMan Platinum Member Joined: 11/29/2011 Last visit: 12/16/2024 Posts: 1361 Rating: (232)	Hi, Maybe this link help you: Which organization blocks do you need for error handling in STEP 7 V5.5? About understanding the diagnostic data, you might find useful the System Software for S7-300/400 System and Standard Functions Volume 1 and Volume 2 (dated to 2010 but I did not find any newer then that). Regarding to OB82 see chapter "1.18 Diagnostic Interrupt Organization Block (OB82)". There is a table detail the variables in the OB local data.
	Last edited by: MicroMan at: 6/15/2015 1:56:49 PM - What you read here, please check with manuals and your requirements. - Do not forget to Test, Test and Test... - If the post is helpful, please RATE it! MicroMan
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This contribution was helpful to 2 thankful Users nasibe JKowalsky