Enabling The Measurement Trigger System; Selecting The Measurement Trigger Source; Selecting The Sensing Function - Agilent Technologies 66319B User Manual

Enabling the Measurement Trigger System

When the dc source is turned on, the trigger system is in the idle state. In this state, the trigger system is
disabled and it ignores all triggers. Sending the following commands at any time returns the trigger
system to the idle state:
ABORt
*RST
*RCL
The INITiate commands move the trigger system from the idle state to the initiated state. This enables
the measurement system to receive triggers. To initiate the measurement trigger system, use:
INIT:SEQ2 or
INIT:NAME ACQ
After a trigger is received and the data acquisition completes, the trigger system will return to the idle
state (unless multiple triggers are desired). Thus it will be necessary to initiate the system each time a
triggered measurement is desired.
NOTE: The measurement trigger system cannot be initiated continuously. However, it can be
repeated for a limited number of times as explained under "Multiple triggers".

Selecting the Measurement Trigger Source

The trigger system is waiting for a trigger signal in the initiated state. Before you generate a trigger, you
must select a trigger source. The following measurement trigger sources can be selected:
Selects GPIB bus triggers. This synchronizes the measurement to the bus
BUS -
trigger command
Selects the signal as the measurement trigger. This synchronizes the
INTernal -
measurement to the signal condition present at either the main output
(output1) terminals or the DVM inputs.
EXTernal - Selects the external trigger input as the measurement trigger source. This
capability only applies to units with firmware revision A.03.01 and up.
To select GPIB bus triggers, use:
TRIG:SEQ2:SOUR BUS
To select internal triggers use:
TRIG:SEQ2:SOUR INT
To select external triggers use:
TRIG:SEQ2:SOUR EXT

Selecting the Sensing Function

There is only one measurement system in the dc source. The measurement system supports voltage
measurements at the main output, current measurements at the main output, and DVM input
measurements. Before you generate a measurement trigger, you must specify one of the following
measurement functions:
SENS:FUNC "CURR"
SENS:FUNC "VOLT"
SENS:FUNC "DVM"
or
TRIG:ACQ:SOUR BUS
or
TRIG:ACQ:SOUR INT
or
TRIG:ACQ:SOUR EXT
or
or
Programming the DC Source - 7
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