Agilent Technologies 34401A User Manual

Page 81

Internal Triggering In the internal trigger mode (remote interface only),
the trigger signal is always present. When you place the multimeter in
the wait-for-trigger state, the trigger is issued immediately. This is the
power-on trigger source for remote interface operation.

To select the internal trigger source, send the following command.
The

CONFigure

and

MEASure?

commands automatically set the

trigger source to

IMMediate

TRIGger:SOURce IMMediate

Software (Bus) Triggering The bus trigger mode is available only
from the remote interface. This mode is similar to the single trigger
mode from the front panel, but you trigger the multimeter by sending
a bus trigger command.

•

To select the bus trigger source, send the following command.

TRIGger:SOURce BUS

•

To trigger the multimeter from the remote interface (

GPIB

RS-232

send the

*TRG

(trigger) command. The

*TRG

command will not be

accepted unless the multimeter is in the wait-for-trigger state.

•

You can also trigger the multimeter from the

GPIB

interface by

sending the

IEEE-488

Group Execute Trigger (

GET

) message.

The multimeter must be in the wait-for-trigger state. The following
statement shows how to send a

GET

using BASIC.

TRIGGER 722

Group Execute Trigger

Chapter 3 Features and Functions
Triggering