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Simatic S5 EProm transfer to new CPU

9/9/2011 1:00 PM	Rate (0)
ry_fern Posts: 32 Rating: (0)	Hi guys, good day! I am currently troubleshooting an S5 rack with a faulty CPU. The CPU PN is 6ES5-943-7UB11. It also has an EPROM. The said CPU runs for some time and then faults. There is no fix time interval. Sometimes, it faults after a week, a day or even a month. The plant personnel said they just perform an overall reset whenever the fault happens. The plant also has a similar spare of CPU. Exactly the same part number. My question is, can i transfer the Old EPROM and use it to with the new CPU? If possible, are there any steps suggested to ensure safe operation? I don't have the backup of the program. Forgive my ignorance with Step 5. Thank you. Every idea is very much appreciated.
ry_fern Posts: 32 Rating: (0)
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9/9/2011 1:53 PM	Rate (0)
Azteke0110 Posts: 376 Rating: (57)	Hello, Unfortunately, I cannot give you a solution for the problem. Under the following link you find the manual for the CPU943. http://support.automation.siemens.com/WW/view/en/1085937 Perhaps you find into this manual the needed information. I hope another user still answers your question. Best Regards Azteke0110
Azteke0110 Posts: 376 Rating: (57)
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9/19/2011 11:00 AM	Rate (0)
LXG Posts: 33 Rating: (0)	Hi, Can you tell me I-stak and B-stack status / infromation when PLC goes to stop. If this stoppage is happening from begining of instalation must be some error inside PLC code. Otherwise could be hardware problem. Maybe there is overheating problem. Check if the air filter in the bottom of the rack is clean and the air flow from rack fan is sufficient. Regards LXG
LXG Posts: 33 Rating: (0)	Last edited by: LXG at: 9/26/2011 10:28 AM Last edited by: LXG at: 9/19/2011 11:04 AM
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