6/4/2007 11:06 AM | |
Joined: 8/25/2005 Last visit: 7/5/2024 Posts: 1161 Rating: (110) |
Hello Ankur, it would be easier to find out what happen, if you would post the messages not only the IDs. There is the posibility to export the dignostic buffer to a *.txt file. Trying to find out which messages are logged: Event ID # 4309 - Memory reset started automatically (power on not backed up) Event ID # 4550 - DEFECTIVE: internal system error Event ID # 39C4 - Distributed I/Os: station failure, entering state I got this information from the manual System Software for S7-300/400 System and Standard Functions Please inform us about the MLFB and Firmwareversion of the CPU Best regards Sabine |
6/4/2007 11:35 AM | |
Joined: 8/25/2005 Last visit: 7/5/2024 Posts: 1161 Rating: (110) |
The information given isn't very detailed
Defective says that something went wrong within CPU. So MLFB and Firmewareversion is important At this page you will find actual firmwareversions and informations about there features Operating System Updates for S7-414-CPUs Best regards Sabine |
6/5/2007 11:13 PM | |
Joined: 1/7/2006 Last visit: 11/17/2023 Posts: 2705 Rating: (318)
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Hi Ankur, Please look at the S7 400 LEDs on Fire thread for some more information. There is also another thread CPU lost user program ? Please take contact with your local Siemens department to solve this problem... |
I hope that the answer will help, if you have still questions, don't hesitate to ask me. |
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