Inside the Idle State. Figure l-36 illustrates the operation of the idle
state.
c
:ABORt
,I
*RST
Figure l-36. Inside the Idle State
Turning power on, or sending *RST or
:ABORT
forces the trigger
system to the idle state. The trigger system remains in the
idle state until it is initiated by
INITiate:
IMMediate or
1NITiate:CONTinuous
ON. Once one of these conditions is satisfied,
the trigger system exits downward to the initiate state. Note that
*RST
sets
INITiate
:
CONTinuous
OFF.
Whenever the trigger system leaves the idle state, it sets the
instrument’s Operation Pending Flag. Returning to idle clears
the flag. The Operation Pending Flag is a special bit inside the
instrument that can affect how the instrument responds to certain
commands. You need to know this fact when using
*OPC,
*OPC?,
*WAI,
and other commands.
Inside the Initiate State. Figure l-37 illustrates the operation of the
initiate state.
:INIT:CONT ON
Figure l-37. Inside the Initiate State
If the trigger system is on a downward path, it travels directly
through the initiate state without restrictions. If the trigger system
Getting Started Programming
l-l 11