Agilent Technologies 33250A User Manual page 196

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Chapter 4 Remote Interface Reference
Triggering Commands
• To ensure synchronization when the Bus source is selected, send the
*WAI (wait) command. When the *WAI command is executed, the
function generator 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 the
operation 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 sweep or
burst is complete. The *OPC? command returns "1" to the output
buffer when the sweep or burst is complete. The *OPC command sets
the "Operation Complete" bit (bit 0) in the Standard Event register
when the sweep or burst is complete.
TRIGger
Trigger a sweep or burst from the remote interface. This command can
be used with any of the available trigger sources (TRIG:SOUR command).
For example, you can use the TRIG command to issue an immediate
trigger while waiting for an external trigger.
*TRG
Trigger a sweep or burst from the remote interface only if the bus
(software) trigger source is currently selected (TRIG:SOUR BUS command).
TRIGger:DELay {<seconds>|MINimum|MAXimum}
TRIGger:DELay? [MINimum|MAXimum]
Insert a time delay between the receipt of the trigger and the start of the
burst waveform (used in triggered burst mode only). Select from 0 seconds
to 85 seconds. The default delay is 0. MIN = 0 seconds. MAX = 85 seconds.
The :DEL? query returns the trigger delay in seconds.
TRIGger:SLOPe {POSitive|NEGative}
TRIGger:SLOPe?
Select whether the function generator uses the rising edge or falling edge
of the trigger signal on the rear-panel Trig In connector. The default is
POS (rising edge). The :SLOP? query returns "POS" or "NEG".
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