SOURce:CURRent[:LEVel]
Syntax
SOURce:CURRent[:LEVel] {<current>|MIN|MAX|DEF}, (@<ch_list>)
SOURce:CURRent[:LEVel]? [{MIN|MAX}, ] (@<ch_list>)
Description
This command sets the output current level on the specified channels on the 34951A Isolated DAC Module. After setting the desired level, send the OUTPut[:STATe] command to close the corresponding output relay and enable outputs from the specified channels.
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This command outputs a dc current level. To output a trace waveform from the module, see the TRACe commands. |
Used With:
34951A Isolated DAC Module
Parameters
|
Name |
Type |
Range of Values |
Default Value |
|
<current> |
Numeric |
Desired current level in Amps. Specify any value between -20 mA and +20 mA, with 630 nA resolution. MIN = -20 mA, MAX = +20 mA |
0 Amps |
|
<ch_list> |
Numeric |
One or more channels in the form (@sccc).
|
This is a required parameter |
Remarks
After setting the desired level, send the OUTPut[:STATe] command to close the corresponding output relay and enable outputs from the specified channels. For subsequent SOURce:CURRent commands, the output relay remain closed.
The SOURce:MODE command gives you the capability to predefine voltage and current levels on the specified channels and then switch from one mode to the other. Sending the SOURce:CURRent[:LEVel] or SOURce:VOLTage[:LEVel] command will automatically enable the corresponding mode.
If a trace waveform is being output at the time this command is sent, the waveform will stop and the trace mode will be disabled (equivalent to SOURce:FUNCtion:ENABle OFF).
To control the current level for trace outputs, use the SOURce:FUNCtion:CURRent:GAIN command.
The SOURce:FUNCtion:CURRent:GAIN and SOURce:FUNCtion:CURRent:OFFSet commands are used to control the gain and offset of trace waveform outputs. These commands are ignored while in the level mode.
The DAC channels on 34952A Multifunction Module do not support current level outputs.
A Factory Reset (*RST command), Instrument Preset (SYSTem:PRESet command), and Card Reset (SYSTem:CPON command) will reset the DAC outputs to 0 mA. In addition, storing the instrument state (*SAV command) will reset the DAC outputs to 0 mA.
Return Format
The query command returns the output current in the form "+1.00000000E-03" for each DAC channel specified. Multiple responses are separated by commas.
Examples
The following command outputs +5 mA on DAC channels 1 and 2 in slot 4 and closes the output relay.
SOUR:CURR
5E-3,(@4001,4002)
OUTP:STAT ON,(@4001,4002)
The following query returns the current outputs on DAC channels 1 and 2 in slot 4.
SOUR:CURR? (@4001,4002)
Typical Response: +5.00000000E-03,+5.00000000E-03