DCP200 Profile Controller & Recorder -Product Manual

Page 134 Glossary 51-52-25-150, Issue 1 April 2009

Alarm OperationThe Process and Deviation Alarm types are illustrated, together with the action of any associated outputs.Also refer to: Alarm Hysteresis, Alarm Inhibit, Alarm Types, Band Alarm Value, Deviation Alarm, Latching Relay, Logical Alarm Combinations, Loop Alarm, Process High Alarm and Process Low Alarm.Figure 50. Alarm Operation

Setpoint

Process High Alarm
Direct Acting
Process High Alarm
Reverse Acting
Process Low Alarm
Direct Acting
Process Low Alarm
Reverse Acting
Band Alarm
Direct Acting
Band Alarm
Reverse Acting
Deviation High
Alarm (+ve values)
Direct Acting
Deviation High
Alarm (+ve values)
Reverse Acting
Deviation Low
Alarm (+ve values)
Direct Acting
Deviation Low
Alarm (+ve values)
Reverse Acting
Output Off
Alarm Off
Output Om
Alarm Off
Output On
Alarm On
Alarm Value
Alarm On
Alarm Value
Alarm Value
Alarm Value
Alarm Value
Alarm Value
Alarm Value
Alarm Value
Om
Alarm Value
Alarm Value
Alarm Value
Alarm Value
Om
Process Variable
Process Variab
le
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Output On
Output On
Output On
Output On
Output O
n
Output O
n
Output On
Output On
Output On
Alarm O
n
Alarm O
n
Alarm O
n
Alarm On
Alarm O
n
Alarm On
Alarm On
Alarm On
Alarm O
n
Alarm O
n
Output Off
Alarm Off
Output Off
Output Off
Alarm Off
Output Off
Alarm Off
Alarm Off
Output Off
Output Off
Output Off
Alarm Off
Output Off
Alarm Off
Output Off
Alarm Off
Output Off
Alarm Off
Setpoint