KEYENCE EX-V Series - Manual (Page 68)

Chapter 4 Use of Data Processing Functions
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5. Follow one of the procedures below according to the selected function number:
● When "b-0" or "b-1" is selected:
Press the key.
The sensor saves the setting and returns to the measurement state.
● When "b-2" (Difference between peaks [bottoms] measurement) is selected:
1) Select "b-20" or "b-21" and then press the key to confirm the selec-
tion.
"b-20": Difference between peak values measurement
"b-21": Difference between bottom values measurement
2) Specify the hysteresis to determine the peak (bottom) value as neces-
sary.
3) Press the key.
The sensor saves the setting and returns to the measurement state.
Note 1: The hysteresis can be set within the range of 0 to 19.999.
Note 2: The hysteresis is factory-adjusted to 10 digits.
Simple difference measurement function [b-0]
Measures the difference between the maximum and minimum values detected
during a specified period (sampling period).
For the simple difference measurement function, the sampling period can be
specified with the combination of the trigger mode and delay time settings.
➮ For the details of the trigger mode and delay time, refer to pages 61 to 63.
Timing diagram
■ External trigger mode
• The sampling period is between the UP edge of the timing input (hold-reset
input) and the UP edge of the next timing input.
• The value measured at the instant when the timing input turns ON is displayed/
output.
Reference: To clear the measured value being held and to start the measurement
again, short-circuit the hold-reset and GND terminals.
(t) 0
ON
OFF
p
b
p'
b'
(p-b)
(p'-b')
Displayed value
Timing input
Simple difference
value
Sampling period Sampling period
When the power is turned ON or the hold-reset
signal is input, the display shows " " until
the first timing signal is input.