Agilent Technologies 4339B, Руководство по эксплуатации

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Trigger System 4339B
Idle State
The trigger system remains in the idle state until it is initiated by :INITiate[:IMMediate] or
:INITiate:CONTinuous ON commands . Once one of these conditions is satised, the trigger
system exits downward to the initiate state . Note that *RST sets INITiate:CONTinuous OFF .
Initiate State
If the trigger system is on a downward path, it travels directly through the initiate state
without restrictions . If the trigger system is on an upward path, and :INITiate:CONTinuous is
ON , then it exits downward to an Trigger Event Detection state . If the trigger system is on an
upward path and :INITiate:CONTinuous OFF , then it exits upward to the Idle state .
ARM Event Detection State
Figure 5-7. Inside an ARM Event Detection State
SOURce The :ARM[:SEQuence1][:LAYer]:SOURce command selects an ARM event
source . When the SOURce is set to BUS, EXT ernal, or MANual, the 4339B
waits for the ARM event detection, and moves its state downward through
\V oltage ON" and \W ait" state . When the SOURce is set to IMMediate , the
4339B immediately exits the ARM event detection state , without waiting the
ARM event, and bypasses the \V oltage ON" and \W ait" states .
DELay The :ARM[:SEQuence1][:LAYer]:DELay command species a time duration
between the recognition of an event and the downward exit. Sending an *RST
command sets DELay to zero .
On the downward path, all the conditions for ARM must be satised before the TRIG events
can be sensed.
5-46 GPIB Reference