HP 53181A Programming Manual page 229

Commands Reference
[:SENSe] Subsystem
[:SENSe]:EVENt[1]:LEVel[:ABSolute]:AUTO <Boolean>
Sets or queries the "auto-trigger " enable.
When AUTO is set to ON, the Counter automatically measures and computes a
trigger level which corresponds to the auto-trigger percentage (specified with
[:SENS]:EVEN[1]:LEV:REL) of the specified channel.
While the enable is set to ON, the Counter will measure and compute the
measurement channel trigger level each time :INIT or :INIT:CONT ON is executed.
Also, for each measurement, while the enable is set to ON, the Counter will check
that the measurement signal(s) are triggering — if no triggering is found, the
Counter will measure and compute new trigger level(s).
• Single ASCII-encoded byte, 0 or 1.
Query Response
• A value of 0 indicates OFF; a value of 1 indicates ON.
• *RST: ON
Comments
• Explicitly selecting a trigger level (with [:SENS]:EVEN[1]:LEV[:ABS]) turns
AUTO OFF.
Related Trigger/Sensitivity
Front-Panel
Keys
[:SENSe]:EVENt[1]:LEVel:RELative <numeric_value> [PCT]
Sets or queries the percentage of the peak-to-peak range of the signal at which the
instrument auto triggers .
If [:SENS]:EVEN[1]:LEV[:ABS]:AUTO is ON, then when this command executes,
the Counter automatically measures and computes a trigger level corresponding to
the specified percentage of the specified channel.
<numeric_value> 0 to 100 PCT
Range
<numeric_value>
10 PCT
Resolution
• Numeric data transferred as ASCII bytes in <NR1> format.
Query Response
4-71