Agilent Technologies E3631-90002, User Manual, Page: 80 / 166

Chapter 4 Remote Interface Reference
Triggering Commands
79
4
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 select an output with the
INSTrument:SELect
command and then configure the power supply for the triggered output
level by using
CURRent:TRIGgered
and
VOLTage:TRIGgered
commands.
• Then, 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[:IMMediate]
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.
TRIGger:SOURce 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.