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Bit Mapped Alarm Word (V5004)
The bit mapped Alarm Word reports the status of the programmed alarms, the temperature sensor, and
the built-in output. It is written to by the temperature controller after each temperature acquisition.
Hexadecimal Weight
0001
0002
0004
0008
0010
0020
0040
0080
0100
0200
0400
0800
1000
2000
4000
8000
Process Temperature (V5005)
The Process Temperature is the current temperature reported by the thermocouple or RTD input device
plus the Temperature Calibration Adjustment value (V5022). This location is written to by the
temperature controller after each loop update.
2.16
Bit Number
0
ON = Temperature Low Alarm
1
ON = Temperature High Alarm
2
ON = Temperature Deviation Limit Alarm
3
ON = Broken RTD or Thermocouple (Burn-out detected)
4
ON = No Heater Current Alarm (open or disconnected)
5
ON = No Heater Current Control Alarm (output shorted)
6
ON = Auto Tune Fault (unable to tune loop)
7
Watch-Dog Bit, Toggles every temperature acquisition
8
Auto Tune Sequence Status, A
9
Auto Tune Sequence Status, B
10
Undefined
11
12
13
14
15
ON when Loop Output is ON (time proportioned output
status)
INSTALLATION AND WIRING
Bit Description
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