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8-4
Triggering
Model 6220/6221 Reference Manual
Return to
Trigger model operation
Idle and initiate
While in the idle state, the instrument cannot perform sweeps. Once the Model
622x is taken out of idle, operation proceeds through the trigger model to perform
sweeps and sweep steps.
Front panel operation
— As shown in
, the Model 622x immediately
leaves the idle state when triggered to do so. Operation remains in the arm and
trigger layers of the trigger model until the sweep is done. Operation cycles
through the arm layer once for each sweep and cycles through the trigger layer
once per sweep step.
The Model 622x can be put into the idle state at any time by pressing EXIT. To
take the instrument out of idle, press the TRIG key.
Remote operation
— As shown in
, an initiate command is required
to take the instrument out of idle. The following command performs an initiate
operation:
INITiate
Once taken out of idle, operation cycles through the arm layer once for each
sweep and cycles through the trigger layer once per sweep step. While operating
within the trigger model (not in idle), most commands will not be executed until the
instrument completes all of its programmed operations and returns to the idle
state. The ABORt command can be sent to return the instrument to idle and halt
the sweep. The IFC, SDC, and DCL commands can be executed under any cir-
cumstance while operating within the trigger model. They will abort any other
command or query.
The following commands can be executed while operating within the trigger
model:
•
ABORt
•
SYSTem:PRESet
•
*TRG or GET
•
*RST
•
*RCL <NRf>
NOTE
For fastest response, use SDC or DCL to return to
idle (see Section 12 for details on general bus
commands).
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