Lakeshore 331S - Page 126

Lake Shore Model 331 Temperature Controller User’s Manual
CRVPT? Curve Data Point Query
Input: CRVPT? <curve>, <index>[term]
Format:
nn,nnn
<curve> Specifies which curve to query: 1
– 41.
<index> Specifies the points index in the curve: 1
– 200.
Returned: <units value>, <temp value>[term]
Format: ±nnnnnnn,±nnnnnnn (Refer to command for description)
Remarks: Returns a standard or user curve data point.
CSET Control Loop Parameter Command
Input: CSET <loop>, <input>, <units>, <powerup enable>, <current/power>[term]
Format:
n,a,n,n,n
<loop> Specifies which loop to configure: 1 or 2.
<input> Specifies which input to control from: A or B.
<units> Specifies setpoint units. Valid entries: 1 = kelvin, 2 = Celsius,
3 = sensor units.
<powerup enable> Specifies whether the control loop is on or off after power-up, where
0 = powerup enable off and 1 = powerup enable on.
<current/power> Specifies whether the heater output displays in current or power. Valid
entries: 1 = current or 2 = power.
Example: CSET 1,A,1,1[term] – Control Loop 1 controls off of Input A with setpoint in kelvin.
CSET? Control Loop Parameter Query
Input: CSET? <loop>[term]
Format:
n
<loop> Specifies which loop to query: 1 or 2.
Returned: <input>, <units>, <powerup enable>, <current/power>[term]
Format: a,n,n,n (Refer to command for description)
DFLT Factory Defaults Command
Input: DFLT 99[term]
Remarks:
Sets all configuration values to factory defaults and resets the instrument. The "99" is
included to prevent accidentally setting the unit to defaults.
DISPFLD Displayed Field Command
Input: DISPFLD <field>, <item>, <source>[term]
Format:
n,n,n
<field> Specifies field to configure: 1
– 4.
<item> Specifies item to display in the field: 0 = Off, 1 = Input A, 2 = Input B,
3 = Setpoint, 4 = Heater Output.
<source> If Item is 1 or 2, specifies input data to display. Valid entries: 1 = kelvin,
2 = Celsius, 3 = sensor units, 4 = linear data, 5 = minimum data, and
6 = maximum data.
Example: DISPFLD 2,1,1[term] – Displays kelvin reading for Input A in display field 2.
6-30 Remote Operation