Appendix A Runtime Templates
PID Controller FCM
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amount). It is used when the entry in the DEVIATION HI ALARMS? field is YES.
Valid entry is a decimal value in engineering units.
DEVIATION LOW LIMIT Field
This field specifies the low alarm limit for the deviation value (normalized measured
value input to the PID FCM is less than the PID setpoint by this amount). It is used
when the entry in the DEVIATION LOW ALARMS? field is YES. Valid entry is a
decimal value in engineering units.
DEVIATION ALARM DB Field
This field is used to define a deadband for the deviation alarm of this FCM. Valid
entry is a value in engineering units.
OUTPUT HIGH ALARMS Field
This field specifies whether the high alarm on the output signal is enabled. If this
field is YES, an alarm occurs when the output is equal to or greater than the value
entered in the OUTPUT HIGH LIMIT field. The alarm clears when the output
decreases to a value equal to or less than the value of the high limit minus the alarm
deadband. Valid entries are: YES (enable the alarm), NO (disable the alarm).
OUTPUT LOW ALARMS Field
This field specifies whether the low alarm on the output signal is enabled. If this
field is YES, an alarm occurs when the output is equal to or less than the value
entered on the OUTPUT LOW LIMIT field. The alarm clears when the output
increases to a value equal to or greater than the value of the low limit plus the alarm
deadband. Valid entries are: YES (enable the alarm), NO (disable the alarm).
OUTPUT RATE ALARMS Field
This field specifies whether the rate alarm for the output signal is enabled. If this
field is YES, an alarm occurs when the rate of change of the output per second is
equal to or greater than the value entered in the OUTPUT RATE LIMIT field. Valid
entries are: YES (enable the alarm), NO (disable the alarm).
Содержание Ability 800xA Series
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