KEYENCE EX-V Series - Manual (Page 90)

Chapter 4 Use of Data Processing Functions
4
80
■ Internal trigger mode (Example of internal trigger DOWN )
• The sampling operation starts when the sampling delay time elapses after the
measured value falls below the trigger level. When the sampling period elapses,
the internal timing signal is turned ON and the "difference between the
maximum and minimum values" is displayed/output.
• For the internal trigger up operation, the trigger point is the instant when the
measured value exceeds the trigger level.
• The instant when the sampling starts, the strobe output turns ON.
• Turning the strobe output from ON to OFF results in the off-delay of 2 ms for
updating the comparator output.
Reference: To clear the measured value being held and to start the measurement
again, short-circuit the hold-reset and GND terminals.
■ Flicker mode
• The internal timing signal is input once at each flicker time and the "difference
between the maximum and minimum values" during the sampling period is
displayed/output.
(t) 0
ON
OFF
ON
OFF
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 measured value is determined.
Displayed value
Internal data reset
Internal timing
Strobe output
Trigger point
Sampling delay
Sampling period
Trigger point
Peak-to-peak
hold value
Sampling delay
Sampling period
Trigger level
P1 b1 P2 b2 P3 b3
(P3-b3)
(P2-b2)
(P1-b1)
(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
Sampling period
Flicker time