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| 4/10/2013 10:34 PM | |
Joined: 9/27/2006 Last visit: 12/9/2023 Posts: 12190 Rating:
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Hello Berno; Information on diagnostic OBs (such as the OB 82) is available from the following manual (in the first chapter), or the Step 7 online help, You will discover there which diagnostic OBs are available, what incident calls them, and what information it is designed to collect for the CPU in case of errors. System Software for S7-300/400 System and Standard Functions Volume 1 and Volume 2 In the absence of these diagnostic OBs, when the CPU encounters an error linked to them, the PLC must go to STOP mode, and the information collected on the fault is very limited (such as you show in your upload). So as soon as you see the message "Requested (or Missing) OB, OB number xx" in the diagnostic buffer, your first reaction should be to create it in the Blocs folder (right-click, select New, OB, name it with the required number, 82 in this case) and download it to the CPU (no internal programming necessary). Then the next time your PLC encounters the particular problem it dislikes, it will light up the SF LED without stopping and the diagnostic buffer will hold a lot more information about the problem (collected by the diagnostic OB). Please also refer to the attached list insside this FAQ for more information: Which organization blocks do you need for error handling? Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 4/10/2013 10:34 PM |
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| 4/11/2013 8:32 AM | |
Joined: 10/7/2005 Last visit: 12/7/2023 Posts: 2997 Rating:
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Hello Berno09 over and top of Daniels advice, the I/O address that you see is the Diagnostic address of your device/module (OB82 is a diagnostic interrupt OB). You can find out to which module and device it belongsby doing the following: 1.)Open HWconfig 2.)Select "View" from the menu and then"Address overview..." (or use CTRL+U as the shortcut) 3.) Scroll down until you find16366 in the Address column 4.) See the "Module" and "DP" column to find out whichmodule and node address (number in brackets)this Diagnostic address belongs too. I hope this helps |
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| 6/19/2015 1:00 PM | |
Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4782 Rating:
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