Agilent Technologies E3646A, User Manual, Page: 92 / 211

Chapter 4 Remote Interface Reference
Triggering
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• 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.
‘‘
TRIG:SOUR IMM
’’
• When the
IMMediate
is selected as a trigger source, an
INITiate
command
immediately transfers the
VOLT:TRIG
or
CURR:TRIG
value to
VOLT
or
CURR
value. Any delay is ignored.