5 Triggering and Gating
178 Keysight 53220A/53230A User’s Guide
External gate signal polarity
When using the external gate sources, the polarity of the gate signal and
therefore, the duration of the gate, is set or changed with the command:
[SENSe:]TOTalize:GATE:POLarity {POSitive|NEGative}
[SENSe:]TOTalize:GATE:POLarity? (query form)
POSitive starts totalizing on a positive edge on the Gate In/Out BNC or channel
1/channel 2 input, and stops totalizing on the next negative edge. NEGative
starts totalizing on a negative edge on the Gate In/Out BNC or channel 1/channel
2 input, and stops totalizing on the next positive edge.
CONFigure and MEASure do not change the polarity setting. Following a reset
(*RST) or instrument preset (SYSTem:PRESet or Preset key), the negative edge is
selected.
To set the polarity of the external gate signal:
// select the gate polarity and source
CONF:TOT:TIM
SENS:TOT:GATE:POL POS // set polarity
SENS:TOT:GATE:SOUR EXT // set source
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