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Decentral Peripherie

S7-1200 with Profibus and required OBs

Thread Starter: Nikzitronik   Started: 5/17/2012 4:07 PM   Replies: 3

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  5/17/2012, 4:07 PM
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Dear all,

What are the required OBs so that the cpu does not stop when a Profibus-DP slave fails.

Regards
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  5/17/2012, 4:27 PM
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Nikzitronik wrote:
Dear all,

What are the required OBs so that the cpu does not stop when a Profibus-DP slave fails.

Regards

Hello Nikzitronik,
Check this FAQ under S7-1200 categories - Which organization blocks can you use in STEP 7 V11?

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  5/17/2012, 6:08 PM
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Nikzitronik wrote:
Dear all,

What are the required OBs so that the cpu does not stop when a Profibus-DP slave fails.

Regards

What PLC firmware and what TIA Portal version are you using?

The simple answer is the diagnostic error interrupt OB.  You can have just one of these per PLC.  It allows you to handle errors within the plc.

Please post your results.

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  5/18/2012, 1:41 PM
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Firmware version is 2.2 and TIA portal V11.

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