S7-300 BusFailure Information

SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
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Pokajy
Posts: 25
Joined: Mon Apr 07, 2008 3:53 pm
Location: Turkey

S7-300 BusFailure Information

Post by Pokajy » Wed Jan 12, 2011 4:39 pm

Hi

I have a S7-400 plc.

15 ET200M and many drivers connected to this plc via profibus.

When there is BF (Bus failure or Bus Fault (boom) ), system stops. (wow)

I have to go to a Pc, open project, be online at hardware and see.. in which dp slave there is a problem. (no)

Now my question is; how can I read this Bus failure from plc? (sbutton)
I'm planning to creat alarms in wincc with this information.

I'll use about 20 bits. When no communication to dp slave profibus address=1 M100.0 will be 1.

No communication to Dp 2 .... M100.1 will be 1.

I saw FB126 "PNIODiag" but I think it sucks. (wow) Do you have any example project that you can share with us?
Thanks

Yury
Posts: 65
Joined: Thu Nov 01, 2007 9:41 pm
Location: Belarus

Re: S7-300 BusFailure Information

Post by Yury » Wed Jan 12, 2011 9:38 pm

Pokajy wrote:I saw FB126 "PNIODiag" but I think it sucks.
Use fc125 it's easier :roll:
https://support.automation.siemens.com/ ... id=6095050

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