Agilent Technologies E3632A Triggering Commands, Trigger Source Choices, Bus Software Triggering

Chapter 4 Remote Interface Reference

Triggering Commands

Triggering Commands

The power supply’s triggering system allows a change in voltage and current when receiving a trigger, to select a trigger source, and to insert a trigger. Triggering the power supply is a multi-step process.

•First, you must specify the source from which the power supply will accept the trigger. The power supply will accept a bus (software) trigger or an immediate trigger from the remote interface.

•Then, you can set the time delay between the detection of the trigger on the specified trigger source and the start of any corresponding output change. Notice that the time delay is valid for only the bus trigger source.

•Finally, you must provide an INITiate command. If the IMMediate source is selected, the selected output is set to the triggered level immediately. But if the trigger source is the bus, the power supply is set to the triggered level after receiving the Group Execute Trigger (GET) or *TRG command.

Trigger Source Choices

You must specify the source from which the power supply will accept a trigger. The trigger is stored in volatile memory; the source is set to bus when the power supply has been off or after a remote interface reset.

Bus (Software) Triggering

•To select the bus trigger source, send the following command.

TRIG:SOUR BUS

•To trigger the power supply from the remote interface (GPIB or RS-232) after selecting the bus source, send the *TRG (trigger) command. When the *TRG is sent, the trigger action starts after the specified time delay if any delay is given.

89

4