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S7-400 CPU 416-2

12/2/2009 11:29 AM	Rate (0)
farra Advanced Member Joined: 10/11/2006 Last visit: 4/10/2025 Posts: 101 Rating: (2)	Dear everyone, Recently, I faced a problem with CPU416-2 that suddenly communication with dp slaves as well as Ethernet got stopped. On checking the CPU found all led's are flashing. Only by making power off/on reset, the problem got cleared and was able to start the CPU again. While checking the diagnostic buffer found error message: defective: cancelled by watchdog/procesor execution No Relevance for USer: f041 0000 0000 defective:internal fault with No Relevance for USer: (Z1): b3c1 (Z2):280C (Z3):0000 The help on this error says: 1. Try to power off/on CPU or remove cpu from rack and reinstall again if it works otherwise replace CPU 2. contact manufaturer with the "No Relevance for USer" codes Any body faced similar exeprience? How to contact Siemens with the codes? Thanks

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12/2/2009 12:31 PM	Rate (0)
Hulzhex Platinum Member Joined: 8/25/2005 Last visit: 12/19/2025 Posts: 1162 Rating: (111)	Hello farra, which version of the CPU are you using? Maybe there will be a newer firmwareversion available Firmware Updates for S7-416-CPUs Best regards Sabine

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12/5/2009 1:09 PM	Rate (0)
farra Advanced Member Joined: 10/11/2006 Last visit: 4/10/2025 Posts: 101 Rating: (2)	Dear Hulzhex, No problem seems to be with firmware. How to send the fault codes to Siemens Thanks farra

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12/5/2009 10:00 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 12/24/2025 Posts: 12472 Rating: (2722)	Hello farra; One way to contact Sienens Support is available on this page, on the top right, in the section CONTACT--Support Request. This will open a dialog for you to insert all data and details for your help request. Hope this helps, Daniel Chartier

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