KEYENCE EX-V Series User Manual

Page 61

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Chapter 4 Use of Data Processing Functions

4

51

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 "limited bottom-dead-center
value" is displayed/output.
For the internal trigger down operation, the trigger point is the instant when
the measured value exceeds the trigger level.

If a comparator output disable input turns ON before the comparator operation,
the comparator output does not turn ON. Refer to page 50 for details.

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.

The trigger level is factory-adjusted to the full scale.

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

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

Limited bottom-
dead-center value

Sampling
delay

Sampling period

Trigger level

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