5/18/2015 6:32 AM | |
Joined: 1/21/2013 Last visit: 10/8/2024 Posts: 4620 Rating: (708) |
Hello mark, First, when you change the battery in a old S7 300 CPU you always change the battery in POWER ON mode maybe now you've lost the program in your CPU, you have reloaded the program? When should you replace the back-up battery on your S7 300/400 ... Have a complete code of your CPU? 6ES7 31x-xxxxx-xxxx You have a EEprom in your CPU?
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Last edited by: Ste39 at: 5/18/2015 6:34:13 AMLast edited by: Ste39 at: 5/18/2015 6:52:46 AM |
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