Technical Forum

SIMATIC S5 / STEP 5

CPU928 replacement

Thread Starter: Ayman Elotaify Started: 10/17/2011 6:49 PM Replies: 1

10/17/2011, 6:49 PM

Ayman Elotaify

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Hello,

I have a client who has a deffected CPU (6ES5 928-3UB12) which controls a printing machine.

And I have another client who has a healthy CPU (6ES5 928-3UA12). I know that it is not the sucessor.

My question is Can I replace the faulty one by the healty one?
If yes, Will I need to modify any thing in the software?

Ayman Elotaify
MISC Egypt
www.miscegypt.com

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10/18/2011, 9:29 AM

fritz

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Hello Ayman Elotaify

the only truthful answer I can give you is: It depends.

What it depends on is listed in the FAQ below and it will require evaluation of the S5 program:
Replacing a CPU 928A with a CPU 928B (or vice versa)

For completeness, the manuals for both CPU's are linked below:
928A Programming Guide manual
928B Programming Guide manual

I hope this helps

Cheers

fritz

The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited.
To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.

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Thank you for this post from:

Ayman Elotaify

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