beautypg.com

Agilent Technologies Switch/Measure User Manual

Page 203

background image

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

9

34980A User’s Guide

191

External Trigger

Example: Selecting the external trigger source and issuing trigger source

The

following command segment enables the trigger output mode on a DAC
module installed in slot 4, 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,4

SOURce:FUNCtion:TRIGger:SOURce EXTernal,(@4001,4002)

SOURce:MODule:TRIGger:EXTernal:IMMediate 4

Auto Calibration

Example: Performing an auto calibration on all DAC channels

This command

performs an auto- cal of all four channels on a DAC module. Because the
auto- cal takes can take up to one minute per DAC channel, you may want to
increase the time- out value of your programming application prior to sending
this command.

The following command performs an auto- cal of a DAC module in slot 5 and
returns a pass/fail indication.

CALibration:MODule? 5

The following command performs an auto- cal of all 34951A DAC modules in a
mainframe.

CALibration:MODule? ALL

Example: Effects of using the secure state command on storing calibration
constants

The following command removes instrument security, and the

calibration constants are stored in non- volatile memory if sent before the
CALibration:MODule?

command.

CALibration:SECure:STATe OFF

If the instrument is secured at the time of auto- cal, the calibration constants
are stored in volatile memory and are lost when power is turned off. The
*RST

command will not discard the calibration constants. The command to

secure the instrument is:

CALibration:SECure:STATe ON

N O T E

The default security code is AT34980.