SOURce:VOLTage[:LEVel]
Syntax
SOURce:VOLTage[:LEVel] {<voltage>|MIN|MAX|DEF}, (@<ch_list>)
SOURce:VOLTage[:LEVel]? [{MIN|MAX}, ] (@<ch_list>)
Description
This command sets the output voltage level for the specified DAC channels. 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 voltage level. To output a trace waveform from the module, see the TRACe commands. |
Used With:
34951A Isolated DAC Module
34952A Multifunction Module (DAC channels only)
Parameters
|
Name |
Type |
Range of Values |
Default Value |
|
<voltage> |
Numeric |
34951A: ±16 Vdc, with 500 µV resolution 34952A: ±12 Vdc, with 1 mV resolution |
0 Vdc |
|
<ch_list> |
Numeric |
One or more channels in the form (@sccc). 34951A: s001,
s002, s003,
s004 |
This is a required parameter |
Remarks
On the 34951A, each DAC channel is capable of ±16 Vdc up to 10 mA maximum current. For protection, each channel incorporates a resettable thermal fuse that will open at greater than 20 mA. If an overload condition exists, the fuse will open, but no error or Service Request will be generated. To reset the fuse, remove the overload condition and wait a few minutes for the fuse to cool.
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:VOLTage commands, the output relay will remain closed.
On the 34951A, 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:VOLTage[:LEVel] or SOURce:CURRent[:LEVel] command will automatically enable the corresponding mode.
If a trace waveform is being output (34951A only) at the time this command is sent, the waveform will stop and the trace mode will be disabled (equivalent to SOURce:FUNCtion:ENABle OFF).
The SOURce:FUNCtion:VOLTage:GAIN and SOURce:FUNCtion:VOLTage:OFFSet commands are used to control the gain and offset of trace waveform outputs. These commands are ignored while in the level mode.
A Factory Reset (*RST command), Instrument Preset (SYSTem:PRESet command), and Card Reset (SYSTem:CPON command) will reset the DAC outputs to 0 Vdc. On the 34951A, storing the instrument state (*SAV command) will reset the DAC outputs to 0 Vdc.
Return Format
The query command returns the output voltage in the form "+1.00000000E+00" for each DAC channel specified. Multiple responses are separated by commas.
Examples
The following command outputs +2.5 Vdc on DAC channels 1 and 2 in slot 4 (assumes 34951A).
SOUR:VOLT
2.5,(@4001,4002)
OUTP:STAT ON,(@4001,4002)
The following query returns the voltage outputs on DAC channels 1 and 2 in slot 4.
SOUR:VOLT? (@4001,4002)
Typical Response: +2.50000000E+00,+2.50000000E+00