Re: [foxboro] Failed CP60

I have recently experienced this problem when using Coax/Fiber =
converters with the CP60's.  When I had a  Coax/Fiber converters fail =
that was on the CP60 side (converting from CP60 Fieldbus Coax to Fiber) =
I started receiving these types of alarms with the shadow CP becoming =
unmarried.  It would not marry up again either.  Problem ended up be =
that with the bad Coax/Fiber converter the processors were supposedly =
seeing a mismatch in the number of I/O modules attached to the =
processors.  The problem can be identified by temporarily disable the B =
fieldbus and see if the processor will marry back.  If it does you have =
problem on the B fieldbus.


Regards,

James Mueller
Cleveland Cliffs Michigan Operation
Senior Process Control Engineer
Work (906) 475-3534
Fax    (906) 475-3538
JDMueller@xxxxxxxxxxxxxxxxxxxx


-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] =
On Behalf Of Jeff Hurt
Sent: 14 July, 2008 8:10 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] Failed CP60

Yes, both of the red and green LED's are illuminated on the failed CP.  =
Looking at the alarm printout, here is what I see:
=20
Single PIO Bus Access Error on B
Single PIO Bus Access Recovery on B
FCM B module failed
FCM B no longer failed
=20
These have came in multiple times.
=20
Thanks,
Jeff H
=20
=20
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