Watlow CLS200, MLS300 and CAS200 User Manual download pdf (Page 55)

Chapter 3: Controller Parameter Descriptions

Communications Speciﬁcation 49

• Default: 3 scans.

Output Value (8)

This parameter contains the output value, based on a full scale value of

32700 equals 100%. You can write to the output value at any time, but a

write command is only meaningful for loops set to Manual control.

• Range: 0 to 32700 (0 to 100%).

• Default: 0.

High Process Alarm Setpoint (9)

The high process alarm setpoint is the absolute high process variable

limit, expressed in engineering units. (This parameter is affected by the

Precision parameter.)

• Range: –999 to 2500 (legal range determined by input type).

• Default: 10000 (1000°F) for a J-type thermocouple.

Low Process Alarm Setpoint (10)

The low process alarm setpoint is the absolute low process variable

limit, expressed in engineering units. (This parameter is affected by the

Precision parameter.)

• Range: –999 to 2500 (legal range determined by input type).

• Default: 0.

Deviation Alarm Band Value (11)

The deviation alarm band value indicates the amount of deviation from

the setpoint before an alarm is issued. The amount of deviation is

expressed in engineering units. (This parameter is affected by the

Precision parameter.)

• Range: 0 to 255.

• Default: 5.

Alarm Deadband (12)

The alarm deadband prevents the alarm output from ﬂuctuating rapidly

when the input is near the alarm setpoint. (This parameter is affected by

the Precision parameter.)

• Range: 0 to 255.

• Default: 2.

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Watlow CLS200, MLS300 and CAS200 User Manual Page 55