App-22 IM 701450-01E
Pulse Width Computation
The signal is converted to binary values by comparing to a preset threshold level, and
the time of the pulse width is plotted as the Y-axis value for that interval. The following 8
intervals are available.
PWHH: From the rising edge to the next rising edge.
PWHL: From the rising edge to the next falling edge.
PWLH: From the falling edge to the next rising edge.
PWLL: From the falling edge to the next falling edge.
PWXX: From the rising or falling edge to the next rising or falling edge.
FV: Inverse of PWHH
DUTYH: Positive (high) duty cycle within each cycle of the specified waveform
DUTYL: Negative (low) duty cycle within each cycle of the specified waveform
Example 1 When the Interval Is Set to PWHH
Curve 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
t1 t2 t3
t'1
t'2
t'3
t1
t'1
×100
t2
t'2
×100
t3
t'3
×100
Curve to be computed
Upper Threshold level
Computed result [%]
Lower Threshold level
Appendix 4 User-Defined Computation
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