Watlow CLS200, MLS300 and CAS200 User Manual download pdf (Page 65)

Chapter 3: Controller Parameter Descriptions

Communications Speciﬁcation 59

Process Power Digital Input (36)

Enable the thermocouple short detection feature by selecting a digital

input.

• Range: 0 to 8 (Disabled = 0, Enabled = 1 to 8 indicating the selected

digital input).

• Default: 0.

High Reading (37)

This parameter contains one of four points used to scale inputs. For

thermocouple and RTD inputs, the high reading is expressed in tenths of

a degree Celsius or Fahrenheit. For linear inputs, the high reading value

is expressed in tenths (CLS) or hundredths (MLS) of a percent of full

scale. For pulse inputs, the high reading value is expressed in Hertz.

• Range: –999 to 9999 (CLS), –9990 to 11000 (MLS).

• Default: 14000 (1400°F) for a J-type thermocouple.

Low Reading (38)

This parameter contains one of four points used to scale inputs. For

thermocouple and RTD inputs, the low reading is expressed in tenths of

a degree Celsius or Fahrenheit. For linear inputs, the low reading value

is expressed in tenths (CLS) or hundredths (MLS) of a percent of full

scale. For pulse inputs, the low reading value is expressed in Hertz.

• Range: –999 to 9999 (CLS), –9990 to 11000 (MLS).

• Default: –3500 (–350°F) for a J-type thermocouple.

NOTE

Note: Do not change High and Low Readings if the Input

Type is NOT set to Linear or Pulse.

Heat/Cool Spread (39)

This parameter describes a deadband about the setpoint for heat/cool

loops. The heat/cool spread is in units of the input variable. This

parameter is affected by the Precision parameter.

4 Extruder option not present Extruder option

5 Ramp-soak not present Ramp-soak

6 Math package not present Math package

7 Reserved

Bit 0 1

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 91 92

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Watlow CLS200, MLS300 and CAS200 User Manual Page 65