KEYENCE EX-V Series User Manual

Page 68

Chapter 4 Use of Data Processing Functions

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)

OFF

(p-b)

(p'-b')

Displayed value

Timing input

Simple difference
value

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.