Is it a FCP270 processor, rev 0U or lower?
See ADV289 / 2018001abi Rev 2:
https://pasupport.schneider-electric.com/km/index?page=content&id=ADV289
It could be a failing optocoupler on a CP.
Brahm
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Shelby Jones
Sent: June 15, 2018 11:27 AM
To: foxboro@xxxxxxxxxxxxx
Subject: [EXT] Re: [foxboro] PIO Bus Errors
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If they are 100 series, I would suspect a flaky field bus isolator.
Sent via the Samsung Galaxy S7 edge, an AT&T 4G LTE smartphone
-------- Original message --------
From: "Smith, Roger" <rsmith@xxxxxxx>
Date: 6/15/18 12:28 PM (GMT-05:00)
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] PIO Bus Errors
Honorable List,
We are getting the following sysmon errors intermittently.
2018-06-08 14:04:36 07CP03 Equip = 070404 SYSMON -00068 Single PIO Bus Access
Error on A
2018-06-08 14:04:36 07CP03 Equip = 070404 SYSMON -00070 Single PIO Bus Access
Recovery on A
The errors are occurring on all 9 FBM's in a cabinet. The FBM's are on 2
separate racks. Always A channel. We replaced one FBM that was the most
frequent offender but that did not solve the problem. The most recent spate of
errors started last Friday afternoon at the same time we had a
thunderstorm/downpour. They occurred 56 times over the weekend ending Sunday
afternoon and have not occurred since. (It hasn't rained since then either).
Has anyone else seen something similar?
Thanks,
Roger Smith
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