Filter
Top Products
C-17
PID Function Block
Mode sheds from
RCAS to AUTO
Remote Cascade Value Host system is not writing RCAS_IN
with a quality and status of “good
cascade” within shed time (see 2
below).
Shed Timer The mode shed timer, SHED_RCAS in
the resource block is set too low.
Increase the value.
Mode sheds from
ROUT to MAN
Remote output value Host system is not writing ROUT_IN
with a quality and status of “good
cascade” within shed time (see 2
below).
Shed timer The mode shed timer, SHED_RCAS, in
the resource block is set too low.
Increase the value.
Process and/or
block alarms will
not work.
Features FEATURES_SEL does not have Alerts
enabled. Enable the Alerts bit.
Notification LIM_NOTIFY is not high enough. Set
equal to MAX_NOTIFY.
Status Options STATUS_OPTS has Propagate Fault
Forward bit set. This should be cleared
to cause an alarm to occur.
TABLE C-3. Troubleshooting.
Symptom Possible Causes Corrective Action