3152B User Manual
Publication No. 980935 Rev. A
5-42 Programming Reference
EADS North America Test and Services
trigger is programmable and can be used to replace an
external trigger source.
TTLTrg<0 to 7>
Discrete
Selects a backplane trigger line as the source for the
trigger input. To avoid hardware conflicts, make sure
that no more than one instrument is programmed to
output trigger signals on any specific TTLT line.
ECLTrg1
Discrete
Selects the backplane ECL trigger line number 1 as the
source for the trigger input.
BUS
Discrete
Selects the remote controller as the trigger source. Only
software commands are accepted; backplane and front
panel signals are ignored.
Response
The 3152B returns EXT, INT, TTLT<n>, or BUS depending on the selected trigger advance source setting.
TRIGger:SLOPe {POSitive|NEGative}(?)
HS Syntax: 1160A<0|1>(?)
Description
The trigger slope command selects the either the positive or negative edge of the trigger signal as the trigger
source. Positive going transitions trigger the generator when the POS option is selected. Negative transitions
trigger the generator when the NEG option is selected. In Gated mode with TRAN selected as the gating
mechanism, two transitions in the same direction are required to gate the output on and off. The trigger slope
command affects the generator when in an interrupted run mode which can be selected using the INIT:CONT
OFF command.
Parameters
Name
Type
Default
Description
POSitive
Discrete
POS
Selects the positive going edge as the trigger source.
When the LEV option is selected for gated mode, a
positive level (above the trigger level setting) opens the
gate.
NEGative
Discrete
Selects the negative going edge as the trigger source.
When the LEV option is selected for gated mode, a
negative level (below the trigger level setting) opens the
gate.
Response
The 3152B returns POS or NEG depending on the selected trigger slope setting.
RETRigger {OFF|ON|0|1}(?)
HS Syntax: 0187A<0|1>(?)
Description
Toggles the state of the re-trigger function. The re-trigger feature causes the 3152B to self-trigger at the end
of a triggered signal cycle. This differs from internally triggered mode in that the internal trigger timer starts
the waveform at a periodic interval and the re-trigger feature re-triggers the waveform after a delay which
begins at the end of the waveform cycle. The re-trigger command affects the generator only when it is
programmed to operate in an interrupted run mode
which can be selected using the INIT:CONT OFF
command.
Parameters
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com