6.6.1 Interface Commands 141
| www.lakeshore.com
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)
RAMP Control Setpoint Ramp Parameter Command
Input RAMP <output>,<off/on>,<rate value>[term]
Format n,n,nnnn
<output> Specifies which output’s control loop to configure: 1 or 2.
<off/on> Specifies whether ramping is 0 = Off or 1 = On.
<rate value> Specifies setpoint ramp rate in kelvin per minute from
0.1 to 100. The rate is always positive, but will respond to
ramps up or down. A rate of 0 is interpreted as infinite, and
will therefore respond as if setpoint ramping were off.
Example RAMP 1,1,10.5[term]—when Output 1 setpoint is changed, ramp the current set-
point to the target setpoint at 10.5 K/minute.
Remarks Control loop settings are assigned to outputs, which results in the settings being
applied to the control loop formed by the output and its control input.
RAMP? Control Setpoint Ramp Parameter Query
Input RAMP? <output>[term]
Format n
<output> Specifies which output’s control loop to query: 1 or 2.
Returned <off/on>,<rate value>[term]
Format n,nnnn (refer to command for description)
RAMPST? Control Setpoint Ramp Status Query
Input RAMPST? <output>[term]
Format n
<output> Specifies which output’s control loop to query: 1 or 2.
Returned <ramp status>[term]
Format n
<ramp status> 0 = Not ramping, 1 = Setpoint is ramping.
RANGE Heater Range Command
Input RANGE <output>,<range>[term]
Format n,n
<output> Specifies which output to configure: 1–4.
<range> For outputs 1 and 2: 0 = Off, 1 = Low, 2 = Medium, 3 = High
For outputs 3 and 4: 0 = Off, 1 = On
Remarks The range setting has no effect if an output is in the Off mode, and does not apply to
an output in Monitor Out mode. An output in Monitor Out mode is always on.
RANGE? Heater Range Query
Input RANGE? <output>[term]
Format n
<output> Specifies which output to query: 1–4.
Returned <range>[term]
Format n (refer to command for description)
To Next Page
