Agilent Technologies E3631-90002, Руководство пользователя, Страница: 81 / 166

Chapter 4 Remote Interface Reference
Triggering Commands
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• You can also trigger the power supply from the GPIB interface by
sending the IEEE-488 Group Execute Trigger (GET) message. The
following statement shows how to send a GET from a Agilent Technologies
controller.
TRIGGER 705 (group execute trigger)
• To ensure synchronization when the bus source is selected, send the
*WAI
(wait) command. When the
*WAI
command is executed, the power
supply waits for all pending operations to complete before executing any
additional commands. For example, the following command string
guarantees that the first trigger is accepted and is executed before the
second trigger is recognized.
TRIG:SOUR BUS;*TRG;*WAI;*TRG;*WAI
• You can use the
*OPC?
(operation complete query) command or the
*OPC
(operation complete) command to signal when the operation is
complete. The
*OPC?
command returns “1” to the output buffer when the
operation is complete. The
*OPC
command sets the “OPC” bit (bit 0) in
the Standard Event register when the operation is complete.
Immediate Triggering
• To select the immediate trigger source, send the following command.
TRIGger:SOURce IMM
• When the
IMMediate
is selected as a trigger source, an
INITiate
command immediately transfers the
VOLTage:TRIGgered
[:AMPLitude]
and
CURRent:TRIGgered[:AMPLitude]
values to
VOLTage[:LEVel][:IMMediate][:AMPLitude]
and
CURRent
[:LEVel][:IMMediate][:AMPLitude]
values. Any delay is ignored.