Keysight Technologies 3458A Guide D'utilisation page 367

– Multiple arming: When using multiple arming, the trigger arm event must be
– Query command: The TARM? query command returns the currently selected
– Related commands: NRDGS, SWEEP, TRIG
Examples
OUTPUT 722; "TARM AUTO, 0" !AUTO TRIGGER ARMING (ALWAYS ARMED)
10 OUTPUT 722; "TARM HOLD" !SUSPENDS MEASUREMENTS
20 OUTPUT 722; "OHM" !SELECTS 2-WIRE OHMS MEASUREMENTS
30 OUTPUT 722; "MEM FIFO !ENABLES READING MEMORY, FIFO MODE
40 OUTPUT 722; "NRDGS 5" !5 READINGS PER SAMPLE EVENT (AUTO)
50 OUTPUT 722; "TARM SGL" !ENABLES ONE SERIES OF MEASUREMENTS
60 END
10 OUTPUT 722; "DCV" !SELECTS DC VOLTAGE MEASUREMENTS
20 OUTPUT 722; "TARM HOLD" !SUSPENDS MEASUREMENTS
30 OUTPUT 722; "TRIG AUTO" !SELECTS AUTO AS THE TRIGGER EVENT
40 OUTPUT 722; "MEM FIFO" !ENABLES READING MEMORY, FIFO MODE
50 OUTPUT 722; "NRDGS 3, AUTO" !3 READINGS PER SAMPLE EVENT (AUTO)
60 OUTPUT 722; "TARM SGL,5" !SELECTS MULTIPLE ARMING FOR 5 CYCLES
70 END
In this program, line 60 arms the trigger once for each measurement cycle. This
occurs five times. After the fifth cycle, trigger arming reverts to HOLD. This
Keysight 3458A User's Guide
the trigger event. Refer to
in-depth discussion of the interaction of the various events.
specified as SGL. When the multimeter executes a TARM command specifying
multiple arming, it holds the GPIB bus until all measurement cycles are
complete. For example, if you specify number_arms as 5, and 10 readings per
cycle (NRDGS command), there are 5 measurement cycles of 10 readings
each. Since it holds the bus, the TARM command must be the last line in the
program and you cannot use the synchronous trigger event or sample event.
trigger arm event. Refer to
more information.
Triggering Measurements
Query commands near the front of' this chapter for
Command Reference
in Chapter 4 for an
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