YOKOGAWA DLM3024 User Manual

9-5
IM DLM3054-01EN
Edge Count (Edge)
With the computation initial point (Initial Point) counted as zero, the instrument counts the number of times the
waveform specified as Source1 passes through the detection level.
• Detection Level (Threshold)
Set the level for detecting edges.
Selectable range: ±10 div
• Polarity (Slope)
Select which waveform slope the instrument will detect edges on.
Detected when the waveform slope is rising
Detected when the waveform slope is falling
• Hysteresis (Hysteresis)
You can apply a hysteresis to the detection level so that edges are not detected on small changes.
Selectable range: 0.3 div to 8.0 div
Resolution: 0.1 div
Rotary Count (Rotary)
The counter is incremented or decremented based on the phase changes in the waveforms assigned to Source1
(phase A) and Source2 (phase B). The state when the waveform is above the specified threshold level is
considered to be 1. The state when the waveform is below the threshold level is considered to be 0. Depending
on how phase A and phase B change, the counter is incremented or decremented.
The instrument counts the number of phase changes with the initial point (Initial Point) set to zero. In addition,
the counter can be reset using the waveform specified with Source3 (Z phase).*
* Selectable only on the 4-channel model.
• Relationship between State Transitions and Counting
As shown in the figure below, the instrument counts up or counts down depending on the phase change (change
in state between 0 and 1) of phase A and phase B.
0 0
1 0
1 1
0 1
Phase A
Phase B
+1
+1
+1
+1
-1
-1
-1
-1
Direction of change
Counting Example
Computed
waveform
Phase B
Phase A
Phase B leads
Phase A leads
Source3 (phase Z): None Source3 (phase Z): CH1,
Computed
waveform
Phase B
Phase A
Phase B leads
Phase A leads
Phase Z
9 Computed and Reference Waveforms

YOKOGAWA DLM3024 Specifications

General

Brand	YOKOGAWA
Model	DLM3024
Category	Test Equipment
Language	English