Operator/Operation Description
And, Or, Not Boolean operations
() Parentheses for grouping and nesting sub-expressions
Delay <sub-expression>,
< time>,[<de-glitch>]
Delays the signal described by expression. Suppresses positive pulses
narrower than the de-glitch time parameter.
Delays range from 0 to 167 seconds with these ranges:
0 to 0.02097 s with 1.28 us resolution
0.02097 to 0.167 s with 10.24 us resolution
0.167 to 1.677 s with 102.4 us resolution
1.677 to 16.776 s with 1.024 ms resolution
16.776 to 167.761 s with 10.24 ms resolution.
De-glitch range is 0 to 85 seconds with 20 ns resolution.
To program a de-glitch value without programming a delay, simply enter zero
as the delay time.
Configuring Threshold Comparators
The APS models have four built-in level comparators that can generate an output signal based on the
comparison of two input signals. These comparators can be set to measure one of five different
parameters types and generate a signal based on whether the measured parameter is greater than or
less than the specified level:
VOLTage level - The measured voltage level comparison
CURRent level - The measured current level comparison
POWer level - The measured power level comparison
AHOur level - The measured amp-hour level comparison
WHOur level - The measured watt-hour level comparison
The following commands define a comparison of the measured voltage to a pre-defined level of 10 V
for comparator #1:
Front Panel Menu Reference SCPI Command
Select System\Signal\Threshold.
Select the voltage comparator (1 - 4) from the
Threshold dropdown list.
Select one of 5 comparison parameters in the Function
dropdown list (e.g. Voltage).
Specify a threshold level in the Level field.
Define the comparator output to be true when the
measured level is either greater or less than the
specified level.
Select > or < in the Operation dropdown.
To specify a voltage comparison for comparator 1:
SENS:THR1:FUNC VOLT
To specify a voltage threshold of 10 V:
SENS:THR1:VOLT:LEV 10
Define the comparator output to be true when the measured
level is greater than (GT) 10 V:
SENS:THR1:FUNC GT
Keysight N6900/N7900 Series Operating and Service Guide 145
4 Using the Advanced Power System
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