App-6
IM DLM3054-01EN
pulse width computation
The signal is converted to binary values by comparing to the preset threshold level, and the time of the pulse
width is plotted as the Y-axis value for that interval.
You can set the interval to one of the settings below.
PWHH: From a rising edge to the next rising edge.
PWHL: From a rising edge to the next falling edge.
PWLH: From a falling edge to the next rising edge.
PWLL: From a falling edge to the next falling edge.
PWXX: From a rising or falling edge to the next rising or falling edge.
FV: The inverse of PWHH.
DUTYH: Duty ratio of the high side of each period of the specified waveform.
DUTYL: Duty ratio of the low side of each period of the specified waveform.
Example 1, When the Interval Is Set to PWHH
Waveform to
be computed
Upper threshold level
t1
t1
t2
t2
t3
t3
Computed
result
Lower threshold level
Example 2, When the Interval Is Set to DUTYH
Waveform to
be computed
Upper threshold level
t1
t2
t3
Computed
result (%)
Lower threshold level
t'1
t'2
t'3
t1
t'1×100
t2
t'2 ×100 t3
t'3 ×100
Appendix