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Low battery status

Created by: IC-MPE at: 1/9/2009 10:02 AM (3 Replies)

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1/9/2009 10:02 AM	Rate (0)
IC-MPE Posts: 25 Rating: (0)	Hello I was wondering if its possible to read out low battery status on a CPU 315-2PN/DP. I have been looking on the forum and in different OB´s but i havent found any help so far. IT seems to me like its only and option in CPU 400 series. But i allso guess im missing something.
IC-MPE Posts: 25 Rating: (0)
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1/9/2009 11:05 AM	Rate (0)
INS Gold Member Joined: 4/6/2006 Last visit: 2/5/2024 Posts: 604 Rating: (56)	Hello, I think this is because the new PS for the S7-300 don't have batteries anymore because the new CPU's have the MMC Card which doesn't need the power of the batteries when the power is shut off.
	Best regards, INS
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1/9/2009 12:09 PM	Rate (1)
Hulzhex Gold Member Joined: 8/25/2005 Last visit: 10/5/2024 Posts: 1162 Rating: (111)	Hello IC-MPE, within the german spoken forum there was a discussion which might be helpfull. Maybe you understand german? S7-300 Batteriefehler There Chris wrote that with old CPU the OB is available ( S7-300 Instruction List CPU Specifications CPUs 312 IFM to 318-2 DP S7-300) And Morten gave the information that the SFC 51 could be used. Evaluation of the LED for an S7-300 battery fault Good luck Sabine

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1/11/2009 4:29 PM	Rate (0)
Shamsher Posts: 102 Rating: (3)	In case the german becomes too much to understand, please fo to freetranslation.com where you can convert the german to english though it is bookish but you will get the idea behind the statement.
Shamsher Posts: 102 Rating: (3)
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