4 previous value comparison function [d, 4 previous value comparison function [ d – KEYENCE EX-V Series User Manual

Page 66

Advertising
background image

Chapter 4 Use of Data Processing Functions

4

56

4.2.4 Previous value comparison function [d]

Compares the average of the previously measured values with the current
measured value and displays only abrupt changes among slow changes.
When any hold function (peak hold, peak-to-peak hold or sample hold) is used, this
function is effective to ignore small differences caused by temperature fluctuation
or the unstable status during warm-up time.

Note: If the displayed value is out of the preset tolerance range, the input value is
not used in the comparison calculation of the next input.

Setting function "d"

1. Press the

key for at least 2 seconds.

The sensor enters the common function selection mode.

2. Press the

key to make function "d" flash.

3. Press the

or

key to select the previous value comparison function.

4. Press the

key to select the desired function number.

5. Press the

key.

The sensor saves the setting and returns to the measurement state.

Note: To reset the values used for the previous value comparison, short-circuit the
No. 11 reset terminal and GND terminal.

HIOUT

ON
OFF

Slow changes

Abrupt change

Hold value

(Time)

Enable the previous value
comparison function

Disable the previous value
comparison function

Advertising