Lake Shore Model 321 Autotuning Temperature Controller User’s Manual
4-14
Remote Operation
Control Process Commands
(Continued)
RANG
Set Heater Status.
Input:
RANG 0
,
RANG 2
or
RANG 3
Returned:
Nothing
Remarks:
Sets heater status where 0 = off, 2 = low, and 3 = high.
RANG?
Heater Status Query.
Input:
RANG?
Returned:
0
,
2
or
3
Remarks:
Returns current heater status where 0 = off, 2 = low, and 3 = high.
NOTE: To maintain software compatibility with the Model 320, RANG 1
will be interpreted as 3 (high).
HEAT?
Heater Power Status Query.
Input:
HEAT?
Returned:
XXX
Remarks:
Returns the percent of full scale heater current, where the returned number
represents one percent increments up to 100.
ZONE
Zone
Storage.
Input:
ZONE XX,±SSS.S,R,PPP,III,DDD
Returned:
Nothing
Remarks:
Stores the stated values of Setpoint, Heater Range, Gain, Rate, and Reset. Zone
XX is between 01 and 10. ±SSS.S is the setpoint in kelvin, R is the heater range,
PPP is the gain, III is the Reset, and DDD is the Rate. The heater Range is 0 for
Heater off, 2 for Heater Low, and 3 for Heater High.
Example:
ZONE 1,100.0,2,100.0,100,20[term]
instructs the Model 321 to store in
Zone 1 a setpoint of 100.0 K, a Heater Range of 2 (Low), a Gain of 100, a Reset
of 100, and a Rate of 20%.
ZONE?
Zone Storage Query.
Input:
ZONE?XX
Returned:
±SSS.S,R,PPP,III,DDD
Remarks:
When entering the zone command, XX defines the zone between 01 and 10.
Returned information is in the following format: ±SSS.S is the setpoint in kelvin,
R is the heater range, PPP is the gain, III is the Reset, and DDD is the Rate.
The heater Range is 0 for Heater off, 2 for Heater Low, and 3 for Heater High.
