KEYENCE EX-V Series - Manual (Page 89)

Chapter 4 Use of Data Processing Functions
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■ Flicker mode
• The internal timing signal is input once at each flicker time and the "minimum
value" during the sampling period is displayed/output.
Peak-to-peak hold function [b-3]
Measures the "difference between the maximum and minimum values" during a
specified period (sampling period).
For the peak-to-peak hold 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 69 and 70.
➮ For the details of flicker delay, refer to pages 70 to 73.
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
When the power is turned ON or the hold-reset
signal is input, the display shows " " until
the first measured value is determined.
Displayed value
Internal timing
Bottom hold value
Sampling period Sampling period Sampling period Sampling period
Flicker time
(t) 0
ON
OFF
p
b
p'
b'
(p-b)
(p'-b')
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
Peak-to-peak
value