An instrumentmoves between adjacent states, dep ending on its
internal conditions and the commands that you send. When you rst
turn on p ower to an instrument, it is in the idle state. You can force
the instrument to the idle state using
:ABORt
or
*RST.
The initiate
and event detection trigger states are essentially a list of conditions
that must b e satised to reach the adjacent states. The sequence
operation state signals the instrument hardware to take some action,
and listens for a signal that the action has b een taken.
Figure 1-35. Generalized Trigger Model
Details of Trigger States
These paragraphs use owcharts to explain the decision making rules
inside each trigger state. These rules govern how the instrument
moves b etween adjacent states. Some of the owcharts reference
commands that have not b een discussed yet. These commands
are explained later in this subsection. Keep in mind that this
explanation covers the most general case. Your particular instrument
may not implement all of the commands discussed here.
1-110 Getting Started Programming
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