Agilent Technologies 6613C Internally Triggered Measurements, Measurement Trigger System Model

Programming the DC Source - 3

Internally Triggered Measurements

You can use the data acquisition trigger system to synchronize the timing of the voltage and current data acquisition with a BUS or internal trigger source. Then use the FETCh commands to return different calculations from the data acquired by the measurement trigger.

SCPI Triggering Nomenclature

As previously explained under "Triggering Output Changes", the dc source uses the following sequence name and alias for the measurement trigger system. This alias can be used instead of the sequence form.

Sequence Form	Alias
SEQuence2	ACQuire

Measurement Trigger System Model

Figure 3-2 is a model of the measurement trigger system. The rectangular boxes represent states. The arrows show the transitions between states. These are labeled with the input or event that causes the transition to occur.

ABORt

IDLE STATE *RST *RCL

INITiate[:IMMediate]

INITIATED STATE

TRIGGER RECEIVED

SENSe:SWEep:POINts

ACQUIRED

NO TRIGger:COUNt

COMPLETE?

YES

Figure 3-2. Model of Measurement Triggers

Initiating the Measurement Trigger System (Agilent 66312A, 66332A Only)

When the dc source is turned on, the trigger system is in the idle state. In this state, the trigger system 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 dc source to receive triggers. To initiate for a measurement trigger, use:

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