Programming the DC Source - 7

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:

BUS -

Selects GPIB bus triggers. This synchronizes the measurement to the bus

 

trigger command

INTernal -

Selects the signal as the measurement trigger. This synchronizes the

 

measurement to the signal condition present at either the main output

 

(output1) terminals or the DVM inputs.

To select GPIB bus triggers, use:

TRIG:SEQ2:SOUR BUS or

TRIG:ACQ:SOUR BUS

To select internal triggers use:

TRIG:SEQ2:SOUR INT or

TRIG:ACQ:SOUR INT

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" or

SENS:FUNC "VOLT" or

SENS:FUNC "DVM"

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Agilent Technologies 66311B, D Enabling the Measurement Trigger System, Selecting the Measurement Trigger Source, INTernal
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66111A, 66309B, 66311B, D specifications

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