Keyence EX-V Series Bedienungsanleitung PDF herunterladen (Seite 70)

Chapter 4 Use of Data Processing Functions

Difference between peaks (bottoms) [b-2]

Measures the difference between the maximum and minimum values of the peak

(bottom ) values during a specified period (sampling time).

The following two types of measurement are available:

1. "b-20" Difference between peak values measurement: Measures the difference

between the maximum and minimum values of the peak values.

2. "b-21" Difference between bottom values measurement: Measures the differ-

ence between the maximum and minimum values of the bottom values.

Timing diagram

For "b-20" measurement

■ 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.

• The EX-V series determines the peak value when the measured value

decreases from the maximum value by a specified hysteresis value. Take this

into account when inputting the timing signal.

Reference: To clear the measured value being held and start the measurement

again, short-circuit the hold-reset and GND terminals.

For "b-21" measurement

■ 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.

• The EX-V series determines the bottom value when the measured value

increases from the minimum value by a specified hysteresis value. Take this

into account when inputting the timing signal.

Reference: To clear the measured value being held and start the measurement

again, short-circuit the hold-reset and GND terminals.

(t)

OFF

p1 p2 p4p3

(p1-p2)

(p4-p3)

When the power is turned ON or the hold-reset signal is input,

the display shows " " until the first timing signal is input.

Displayed value

Timing input

Sampling period Sampling period

(t)

OFF

(b2-b1)

(b3-b4)

When the power is turned ON or the

hold-reset signal is input, the display

shows " " until the first timing

signal is input.

Displayed value

Timing input

Sampling period Sampling period

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 119 120

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Lao 20 Nov 2024 | 23:59:11

Keyence EX-V Series Bedienungsanleitung Seite 70

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