Features and Functions
2
34405A User’s and Service Guide
45
Triggering the Multimeter
From the front panel (Local mode),
the multimeter always auto–triggers.
Auto triggering takes continuous readings at the fastest rate possible for
the selected measurement configuration.
From the remote interface
, triggering the multimeter is a three–step
process:
1
Configure the multimeter for the measurement by selecting the
function, range, resolution, and so on.
2
Specify the multimeter’s trigger source. Choices are a software (bus)
trigger from the remote interface or an immediate internal trigger
(default trigger source).
3
Ensure that the multimeter is ready to accept a trigger from the
specified source (called the
wait
–
for
–
trigger
state).
Immediate Triggering
The immediate triggering mode is available from the remote interface only.
In the
immediate
trigger mode, 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 default trigger source for remote interface
operation.
•
Remote Interface Operation:
The following command selects the immediate
trigger source:
TRIGger:SOURce IMMediate
The
CONFigure
and
MEASure?
commands automatically set the trigger
source to
IMMediate
.
Refer to the
Agilent 34405A Programmer’s Reference
for complete
description and syntax for these commands.
Software (Bus) Triggering
The bus trigger mode is available from the remote interface only.
The bus trigger mode is initiated by sending a bus trigger command, after
selecting BUS as the trigger source.
•
The TRIGger:SOURce BUS command selects the bus trigger source.
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