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Event ID 3942 - Module problem or maintenance necessary

Created by: Tech Ahmed at: 12/5/2019 4:19 PM (2 Replies)

12/5/2019 4:19 PM	Rate (0)
Tech Ahmed Advanced Member Joined: 1/16/2012 Last visit: 10/30/2024 Posts: 114 Rating: (2)	Dear Experts, I am getting event 3942 Diagnostic interrupt (module/submodule faulty or maintenance required or both) in the diagnostic buffer in the CPU. Please guide what could be the reason behind this event and its remedy, I have attached full diagnostic event list. Best Regards, Ahmed Attachment Diagnose.txt (884 Downloads)

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12/5/2019 6:39 PM	Rate (2)
miami Platinum Expert Joined: 8/31/2005 Last visit: 10/22/2024 Posts: 2198 Rating: (328)	unknown user Event 11 of 100: Event ID 16# 3842 Module OK Module type: Distributed I/0s Input address: 3398 Channel information available Requested OB: Diagnostic interrupt OB (OB82) OB not found, or disabled, or cannot be started in the in the current operating mode External error, Outgoing event 11:33:36.640 AM 12/05/2019 (Coding: 16# 3842 FE52 C554 0D46 0013 0000) My Idea is : Looks like the module at peripherie address 3398 has send a diagnostic alarm. This calls OB82. This OB is not available, so the CPU goes to STOP. You can: go online and check the module to find out what the alarm is disable the diagnostic alarms for this module in HW config (requires compile and download) download a OB82 (may be empty) The best solution is to program a OB82, who reads out the diagnostic code and shows it on an HMI

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