10/21/2015 8:42 AM | |
Joined: 7/9/2015 Last visit: 11/1/2024 Posts: 4016 Rating: (600) |
Hi Peter,
I see that your PLC has a very old firmware. I would update to V2.6.10. Please look here: https://support.industry.siemens.com/cs/de/en/view/18722504
Not every CP is working fine with old CPU. You should check if your Hardware is compatible.
Regards, Towome |
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10/21/2015 8:50 AM | |
Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating: (1054) |
hi Peter, the reason of this error is not easy to find. see this allready existing threads with the same error from last week. CPU 315-2DP, sometimes goes to STOP mode and turn on the SF ledI guess there is a internal problem whit the communication to a central IO-module, like backplane-bus-problem. How old is your CPU? Maybe a FW-Update could help? Does this error occur often? regards, |
Last edited by: mopS04 at: 10/21/2015 8:52:02 AMFCK WAR! |
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10/22/2015 9:48 AM | |
Joined: 3/21/2006 Last visit: 11/1/2024 Posts: 10229 Rating: (1181) |
Hello, You can attach here the diagnostic buffer message list. Which organization blocks do you need for error handling in STEP 7 V5.5? (the meaning of prevent CPU to go in STOP) Search for 'event 494D' to find a lot of discussions... Best regards, Hristo Mihalev |
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