Agilent Technologies L4400 manual External Clock, External Trigger, Configuring a DAC Module

9L4451A 4-Channel Isolated D/A Converter with Waveform Memory

External Clock

Example: Selecting an external clock source and setting a clock divisor The first command selects the external clock source on DAC channels 1 and 2. The external clock input is shared between these two channels. The second command sets the clock divisor to 100 on the same DAC channels (the external clock input signal is divided by 100).

SOURce:FUNCtion:CLOCk:SOURce EXTernal,(@1001,1002)

SOURce:FUNCtion:CLOCk:EXTernal:DIVisor 100,(@1001,1002)

Example: Outputting a clock The following commands set the clock output frequency to 5 kHz and enable the output.

SOURce:MODule:CLOCK:FREQuency 5E+3,1

SOURce:MODule:CLOCK:STATE ON,1

External Trigger

Example: Selecting the external trigger source and issuing trigger source The following command segment enables the trigger output mode and then enables the external trigger source on DAC channels 1 and 2. The last command issues an external trigger pulse from the module.

SOURce:MODule:TRIGger:OUTPut ON,1

SOURce:FUNCtion:TRIGger:SOURce EXTernal,(@1001,1002)

SOURce:MODule:TRIGger:EXTernal:IMMediate 1

Configuring a DAC Module

Example: Querying the system for module identify (all modules) The following

command returns the identify of the L4451A instrument.

SYSTem:CTYPe? 1

Example: Resetting the module(s) to power-on state The following command resets the instrument.

SYST:CPON 1

NOTE Using this command will erase any downloaded waveforms.

230 L4400 User’s Guide