M9B-HFS INTERFACE
M9B-HFS OPERATION
Release 1.0 (97/10)
3-11
VDATA <Vlo>,
<Vhi>
Parameters:
<Vlo>, <Vhi>
Calculates and records the slope and offset for programmed voltage using VLO and VHI
data. Set CMODE ON before using this command. See also the calibration procedures in
Section 4.
VHI
In response to this command, the power supply sends a programmed voltage value to the
output terminal. This value is at the high end of the power supply’s voltage range and is
read by an external device connected as part of the calibration procedure. Refer to this
value as VHI and record it to use as input with the VDATA command. Set CMODE ON
before using this command. See also the calibration procedures in Section
4.
VLO
In response to this command, the power supply sends a programmed voltage value to the
output terminal. This value is at the low end of the power supply’s voltage range and is
read by an external voltmeter connected as part of the calibration procedure. Refer to this
value as VLO and record it to use as input with the VDATA command. Set CMODE ON
before using this command. See also the calibration procedures in Section
4.
VMAX <volt>
Sets an upper soft limit on the supply’s programmed output voltage. If the soft limit is
exceeded, or if the soft limit value is lower than the present output voltage setting, the
supply will ignore the command, turn on the ERR LED, and set the ERR bit in the
accumulated status register.
Range:
0 to model maximum output voltage (VMAX)
Initial value:
VMAX
VMAX?
Asks for the supply’s soft voltage limit setting.
Response:
VMAX <voltage>
VOUT?
Measures the supply’s actual voltage output using the built
-in voltage readback circuitry.
Response:
VOUT <voltage>
VRDAT <Vlo>,
<Vhi>
Parameters:
<Vlo>, <Vhi>
Calculates and records the slope and offset for readback voltage using VRLO and VRHI
data. Set CMODE ON before using this command. See also the calibration procedures in
Section 4. <Vlo> and <Vhi> are in <voltage>
format.
VRHI
The power supply outputs a voltage value to an external voltmeter connected as part of
the calibration procedure and records a voltage readback value internally. These values
are at the high end of the programmed voltage range. Refer to the output value as VRHI
and record it to use as input with the VRDAT command. Set CMODE ON before using this
command. See also the calibration procedures in Section
4.