To Next Page

To Previous Page

384 Keysight InfiniiVision DSOX1204A/G Oscilloscopes Programmer's Guide

20 :MEASure Commands

:MEASure:TVALue

(see page 798)

Query Syntax

:MEASure:TVALue? <value>, [<slope>]<occurrence>[,<source>]

<value> ::= the vertical value that the waveform must cross. The

value can be volts or a math function value such as dB,

Vs, or V/s.

<slope> ::= direction of the waveform. A rising slope is indicated

by a plus sign (+). A falling edge is indicated by a

minus sign (-).

<occurrence> ::= the transition to be reported. If the occurrence

number is one, the first crossing is reported. If

the number is two, the second crossing is reported,

etc.

<source> ::= {CHANnel<n> | FUNCtion | MATH | WMEMory<r>}

<n> ::= 1 to (# analog channels) in NR1 format

<r> ::= 1-2 in NR1 format

When the :MEASure:TVALue? query is sent, the displayed signal is searched for

the specified value level and transition. The time interval between the trigger event

and this defined occurrence is returned as the response to the query.

The specified value can be negative or positive. To specify a negative value, use a

minus sign (-). The sign of the slope selects a rising (+) or falling (-) edge. If no sign

is specified for the slope, it is assumed to be the rising edge.

The magnitude of the occurrence defines the occurrence to be reported. For

example, +3 returns the time for the third time the waveform crosses the specified

value level in the positive direction. Once this value crossing is found, the

oscilloscope reports the time at that crossing in seconds, with the trigger point

(time zero) as the reference.

If the specified crossing cannot be found, the oscilloscope reports +9.9E+37. This

value is returned if the waveform does not cross the specified value, or if the

waveform does not cross the specified value for the specified number of times in

the direction specified.

If the optional source parameter is specified, the current source is modified.

Return Format

<value> ::= time in seconds of the specified value crossing in

NR3 format

NOTE

This query is not available if the source is FFT (Fast Fourier Transform).

Keysight Technologies InfiniiVision DSOX1204A User Manual

Questions and Answers: