8
1.5.4
Remote Queries
When the output is ON, you may query the output current and voltage, as well as the output state and voltage and current
setpoints using the commands:
MEASure:VOLTage?
Measure and return output voltage (volts)
MEASure:CURRent?
Measure and return output current (amps)
OUTPut?
Query output state
VOLTage?
Query voltage setpoint (volts)
CURRent?
Query current setpoint (amps)
POWer?
Query power setpoint (watts)
Voltage is returned in volts, current in amperes, and power in watts. The output state is either ON or OFF.
1.5.5
Additional SCPI Commands
Regardless of the output state, you can query Status and Error registers, as described in Section 6.0.
1.5.6
Additional Capabilities
When the output is OFF, you can switch operating modes, as described in Section 1.0.
When the output is ON, you will be able to execute only those commands which activate and deactivate the output and measure
the output voltage and current.
1.6
ANALOG DUAL CONTROL MODE
1.6.1
Voltage Setpoint
When the unit is in Analog Dual Control Mode, the Analog Voltage channel supplies the Voltage Setpoint.
1.6.1.1 Analog Input Scaling
You can select 3 volt, 5 volt, or 10 volt scaling for the analog voltage input. This is the value which represents the maximum
model-specific voltage. For example, if you have the 400V 2.5A model and have selected the 10V scaling, then 10 volts applied
across the Analog Voltage channel will result in a 400 volt setpoint. For the same scaling, 5 volts applied across the Analog
Voltage channel will result in a 200 volt setpoint.
If Analog Voltage Control Mode is entered via the front panel, you will be asked to select which scaling you want. You may also
select scaling with the SCPI command: SYSTem:MODe:ASCale VOLTage,<3|5|10>
1.6.2
Current Setpoint
When the unit is in Analog Dual Control Mode, the Analog Current channel supplies the Current Setpoint.
