KEYENCE EX-V Series - Manual (Page 78)

Chapter 4 Use of Data Processing Functions
4
68
■ Internal trigger mode (Example of internal trigger up )
• The sampling operation starts when the sampling delay time elapses after the
measured value exceeds the trigger level. When the sampling period elapses,
the internal timing signal is turned ON and the value at the instant is displayed/
output.
• For the internal trigger down operation, the trigger point is the instant when
the measured value falls below 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
• When the power is turned ON or the hold-reset signal is input, the display
shows "----" until the first measured value is determined.
• The internal timing signal is input once at each flicker time and the value at the
instant is displayed/output.
(t) 0
ON
OFF
ON
OFF
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 data reset
Internal timing
Strobe output
Trigger point
Sampling delay Sampling delay
Sampling period Sampling period
Trigger point
Average measurement value
Trigger level
Sampling delay Sampling delay
Sampling period Sampling period
(t) 0
ON
OFF
Flicker time
Displayed value
Internal timing
Average measurement value
Sampling period Sampling period Sampling period Sampling period