6.4.1 Interface Commands 121
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OPSTR? Operational Status Register Query
Input OPSTR? [term]
Returned <bit weighting> [term]
Format nnn
Remarks The integers returned represent the sum of the bit weighting of the operational sta-
tus bits. These status bits are latched when the condition is detected. This register is
cleared when it is read. Refer to
section 6.2.5.2 for a list of operational status bits.
OUTMODE Output Mode Command
Input OUTMODE <output>,<mode>,<input>,<powerup enable>[term]
Format n,n,n,n
<output> Specifies which output to configure: 1 or 2.
<mode> Specifies the control mode. Valid entries: 0 = Off, 1 = Closed
Loop PID, 2 = Zone, 3 = Open Loop, 4 = Monitor out,
5 = Warmup Supply
<input> Specifies which input to use for control: 0 = None, 1 = A,
2 = B
<powerup enable> Specifies whether the output remains on or shuts off after
power cycle. Valid entries: 0 = powerup enable off,
1 = powerup enable on.
Example OUTMODE 1,2,1,0[term] Output 1 configured for Zone control mode, using Input A
for the control input sensor, and will turn the output off when power is cycled.
Remarks Modes 4 and 5 are only valid for Output 2 in Voltage mode.
OUTMODE? Output Mode Query
Input OUTMODE? <output>[term]
Format n
<output> Specifies which output to query: 1 or 2.
Returned <mode>,<input>,<powerup enable>[term]
Format n,n,n (refer to command for description)
PID Control Loop PID Values Command
Input PID <output>,<P value>,<I value>,<D value>[term]
Format n,+nnnnn,+nnnnn,+nnnn
<output> Specifies which output’s control loop to configure: 1 or 2.
<P value> The value for output Proportional (gain): 0.1 to 1000.
<I value> The value for output Integral (reset): 0.1 to 1000.
<D value> The value for output Derivative (rate): 0 to 200.
Remarks Control settings, (P, I, D, and Setpoint) are assigned to outputs, which results in the
settings being applied to any loop formed by the output and its control input.
Example PID 1,10,50,0[term] Output 1 P is 10, I is 50, and D is 0%.
PID? Control Loop PID Values Query
Input PID? <output>[term]
Format n
<output> Specifies which output’s control loop to query: 1 or 2.
Returned <P value>,<I value>,<D value>[term]
Format +nnnnn,+nnnnn,+nnnn (refer to command for description)
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