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7 - Programming the DC Source
Initiating 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
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:
INITiate:SEQuence2 or
INITiate:NAME ACQuire
After a trigger is received and the data acquisition completes, the trigger system will return to the idle
state (unless multiple measurements are desired). Thus it will be necessary to initiate the system each
time a triggered acquisition is desired.
NOTE:
You cannot initiate measurement triggers continuously. Otherwise, the measurement data
in the data buffer would continuously be overwritten by each triggered measurement.
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 HP-IB bus triggers.
INTernal -
selects the dc source's output as the measurement trigger.
To select HP-IB bus triggers (group execute trigger, device trigger, or *TRG command), use:
TRIGger:SEQuence2:SOURce BUS
TRIGger:ACQuire:SOURce BUS
To select internal triggers (measurements triggered off the output signal) use:
TRIGger:SEQuence2:SOURce INTernal
TRIGger:ACQuire:SOURce INTernal
Generating Measurement Triggers
There is only one measurement converter in the dc source. Before you generate a measurement trigger,
you must specify a measurement acquisition of either voltage or current. To specify a measurement
acquisition use:
SENSe:FUNCtion "CURRent"
SENSe:FUNCtion "VOLTage"
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