Agilent Technologies 4339B - Page 183

4339B
TRIGger
Subsystem
:TRIGger[:SEQuence1]:SOURce
f
BUS
j
EXT
ernal
j
INT
ernal
j
MANual j
TIMer g
Sets
or
queries
a
trigger
source
.
Only
one
source
can be
specied at
a time
.
The
TRIGger[:SEQuence1]:SOURce
command
works
with
the
ARM[:SEQuence1][:LAYer]:SOURce
command
and
controls
the
measurement
sequence
mode
.
The
selections
of
the TRIGger:SOURce
and ARM:SOURce
is shown
in T
able 5-1
.
T
able
5-1.
Selection
of
ARM
Source and
Trigger Source
ARM:SOUR
1
TRIG:SOUR Measurement
Sequence
Trigger
Source
IMMediate BUS OFF GET
or
a
*TRG
command
EXTernal An
external signal
from the
external trigger
terminal
INTernal An
internal
signal
MANual
key
TIMer Not
A
vailable
2
BUS BUS
EXTernal
MANual
Not
A
vailable
3
INTernal Single GET or
*TRG command
TIMer Continuous
EXTernal BUS
EXTernal
MANual
Not
A
vailable
3
INTernal Single An
external
trigger
signal
from
the
external
trigger
terminal
TIMer Continuous
MANual BUS
EXTernal
MANual
Not
A
vailable
3
INTernal Single
key
TIMer Continuous
1
F
or
details on
ARM:SOURce ,
see ARM[:SEQuence1][:LAYer]
command.
2
If
you
select
this
TRIGger:SOURce
,
the
4339B
automatically
sets
ARM:SOURce
to BUS
.
3 If
you
select
these
TRIGger:SOURce
,
the
4339B
automatically
sets
ARM:SOURce
to
IMMediate
.
Query
response
is
BUS
,
EXT
,
INT
,
MAN ,
or TIM
.
GPIB Reference 5-35