Agilent Technologies Switch/Measure 34951A Scpi Programming Examples, Level Mode, Waveform Mode

4-Channel Isolated D/A Converter with Waveform Memory Module 9

34951A SCPI Programming Examples

The programming examples below provide you with SCPI command examples to use for actions specific to the DAC module.

The slot and channel addressing scheme used in these examples follow the form sccc where s is the mainframe slot number (1 through 8) and

cccis the three- digit channel number. Valid channels for this module are 1- 4. For information on specific configurations, refer to the simplified schematic on page 193.

For complete information on the SCPI commands used to program the 34980A, refer to the Agilent 34980A Programmer’s Reference contained on the 34980A Product Reference CD. For example programs, also refer to the 34980A Product Reference CD.

Level Mode

Example: Outputting a DC voltage level 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. The following command outputs +2.5 V DC on DAC channels 1 and 2 for a module in slot 4.

SOURce:VOLTage 2.5,(@4001,4002)

OUTPut:STATe ON,(@4001,4002)

Example: Outputting a current level This command sets the output current level on the specified channels on the 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. The following command outputs +5 mA on DAC channels 1 and 2 for a module in slot 4 and closes the output relay.

SOURce:CURRent 5E-3,(@4001,4002)

OUTPut:STATe ON,(@4001,4002)

Waveform Mode

Example: Downloading a waveform to memory and outputting waveform from DACs The following command segment downloads a 1000- point sine waveform to memory on the module in slot 4 and outputs the waveform from DAC channels 1 and 2. The trace name is "TEST_SINE".

TRACe:FUNCtion 4,SINusoid, TEST_SINE, 1000

SOURce:FUNCtion:TRACe TEST_SINE,(@4001,4002)

OUTPut:STATe ON,(@4001,4002)

SOURe:FUNCtion:ENABle ON,(@4001,4002)

34980A User’s Guide 189