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Old February 9th, 2018, 10:47 AM   #1
Rob...
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OT: Siemens L+ & M

Ok, as we all know a lot of connections on siemens equipment have the letters L+, M and PE or ground symbol.

We all know what they mean, an what should be connected but I was asked today a simple question.

What does the 'M' stand for, is it an abbreviated German word? I know it's the 0V reference.

My German is fairly good, but I'm struggling to think of any word that begins with M that would describe it's function. As I'm a curious guy, it's just something I'd like to know, if anyone on here knows?
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Old February 9th, 2018, 11:11 AM   #2
geniusintraining
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See below

http://www.plctalk.net/qanda/showthread.php?p=646926
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Old February 9th, 2018, 11:16 AM   #3
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Perfect thanks.

Wonder why it did not show up when I searched for it? Anyway, I have the answer I was looking for.
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Old February 9th, 2018, 12:20 PM   #4
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Quote:
Originally Posted by Rob... View Post
Perfect thanks.

Wonder why it did not show up when I searched for it? Anyway, I have the answer I was looking for.
I ended up finding the link on Google... I also found your question, funny how fast Google scans the website and then adds it to the search
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Old February 9th, 2018, 04:24 PM   #5
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Quote:
Originally Posted by geniusintraining View Post
I ended up finding the link on Google... I also found your question, funny how fast Google scans the website and then adds it to the search
I don't know about funny, it is often helpful and sometimes scary.
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