Programming Guide

Digital Oscilloscopes Series
131
ACQUISITION
TRIG_SELECT, TRSE
Command /Query
DESCRIPTION
The TRIG_SELECT command selects the
condition that will trigger the acquisition of
waveforms. Depending on the trigger type,
additional parameters must be specified. These
additional parameters are grouped in pairs. The
first in the pair names the variable to be
modified, while the second gives the new value
to be assigned. Pairs may be given in any order
and restricted to those variables to be changed.
The TRIG_SELECT? query returns the current
trigger condition.
Trigger Notation
EDGE
Edge
PS
Pulse smaller
GLIT
Glitch
SR
Source
HV
Hold value
TI
Time
HT
Hold type
TV
TV
IL
Interval larger
CHAR
Characteristics
INTV
Interval
LPIC
Lines per picture
IS
Interval smaller
LINE
Line
PL
Pulse larger
COMMAND SYNTAX
(for all but TV trigger)
TRig_SElect
<trig_type>,SR,<source>,HT,<hold_type>,HV,<
hold_value>
<trig_type> : = { EDGE, GLIT,SLEW, INTV}
<source> : = {C1, C2, C3, C4, LINE,EX,EX5}
<hold_type> :={TI,PS,PL,P2,IS,IL,I2,OFF,EV}
<hold_value> : = See instrument Operator‘s
Manual for valid values.
Note:
The <hold type> varies with models. If your
oscilloscope is an SPO model, hold type‘s
options are {TI,PS,PL,P2,IS,IL,I2,OFF,EV},
else ,hold type‘s options are {TI, PS, PL,PE, IS,
IL,IE}.