4 - Programming Examples

Initiating the Output Trigger System

When the ac 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 ac source to receive triggers. To initiate for a single triggered action, use:

INITiate:IMMediate:SEQuence1 or

INITiate:IMMediate:NAME TRANsient

After a trigger is received and the action completes, the trigger system will return to the Idle state. Thus it will be necessary to initiate the system each time a triggered action is desired.

To keep a trigger system initiated for multiple actions without having to send an initiate command for each trigger, use:

INITiate:CONTinuous:SEQuence1 ONor

INITiate:CONTinuous:NAME TRANsient, ON

NOTE: The SEQuence2 (or SYNChronize) trigger sequence does not have an INITiate command. It is always initiated.

Selecting the Output 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. To select the external Trigger In BNC as the source, use:

TRIGger:SEQuence1:SOURce EXTernal

or

TRIGger:TRANsient:SOURce EXTernal

To select GPIB bus triggers (group execute trigger, device trigger, or *TRG command), use:

TRIGger:SEQuence1:SOURce BUS

or

TRIGger:TRANsient:SOURce BUS

To select a trigger source that is always true, use:

TRIGger:SEQuence1:SOURce IMMediate

or

TRIGger:TRANsient:SOURce IMMediate

NOTE: The immediate source can be combined with INITiate:CONTinuous:SEQuence1 ON to generate repetitive output transients.

A transition from the Initiated state to the Delay state is made when the trigger signal is received.

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Agilent Technologies 6843A Initiating the Output Trigger System, Selecting the Output Trigger Source, ABORt *RST *RCL, 134
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