4263B
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
is
OFF
,
then
it
exits
upward
to
the
idle
state.
Trigger
Event
Detection
State
If
the
trigger
system
is
on
a
downward
path,
it
branches
as
follows
.
Figure
5-7.
Inside
an
Trigger
Event
Detection
State
SOURce
The
:TRIGer:SOURce
command
species
which
particular
input
can
generate
the event
required to
continue the
downward path.
DELay
The
TRIGger:DELay
command allows
you to
specify a
time
delay
after
trigger
signal
is
detected. F
or example
,you
may want
to
delay
acquiring
data
until
5
ms after
the positive
edge to
allow the
measured
signal
to
settle
.
Sending
*RST
sets
:TRUGger:DELay
to
zero.
IMMediate The
:TRIGger:IMMediate
command bypasses event detection,
DELay
qualications one time
. The upward path through the Trigger
Event
Detection state contains only one condition. If the condition is satised,
the
trigger system exits upward.
Sequence Operation State
The downward entrance to the Sequence Operation state forces the 4263B to start a
measurement. An upward exit is not allowed until the measurement is complete
.
GPIB Reference 5-47