We are currently upgrading one of our sites from a CP30FT to a CP60FT and
are experiencing some difficulties. The actual upgrade went relatively
smoothly but after the AW was placed back on line with the new CP60's we
started to receive numerous fieldbus failure alarms (PIOBUS A/B) that would
randomly come in and out. Sometimes we would have no alarms for about 1/2
hour and then continuous alarms for the next 20 minutes. There was no
pattern as to when the alarms would occur. Occasionally when the alarms
occurred we would lose communication to the fieldbus altogether (blue flu on
the operator screen). Until we do some more detail investigations (with Fox
Mass.) we have gone back to the old CP30 system.
Has anyone else experienced similar problems and what did you do to get
around it.
Some back ground information: The switchover is being performed at the same
time as a revision upgrade from 6.1 to 6.2.1 on a AW/WP51B system. All
fieldbus modules are of the traditional rack mounted type (no din rail
mounted modules).
Much appreciation for any assistance.
John Campbell
Dofasco
[EMAIL PROTECTED]
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