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Minimum input period, Group processing timing chart, Statistical processing timing chart – KEYENCE LS-7600 User Manual

Page 162: Chapter 7 i/o terminals

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7-14

Chapter 7 I/O Terminals

7

Minimum Input Period

Refer to the relevant timing charts for the delay time (response delay time) in response
to input.

Name

Specifications

TIMING/ZERO/RESET

P1~P4

ON : 2.1ms

OFF : 2.1ms

ON : 6.0ms

OFF : 6.0ms

Group Processing Timing Chart

ON

OFF

OUT2 BCD output

ON

OFF

OUT2 STROBE output

ON

OFF

OUT2 RESET input

OUT1 Measured value

ON

OFF

OUT1 STROBE output

OUT2 WAITING output

ON

OFF

ON

OFF

OUT2 Comparator output

1

n-1

n

1

1

2

2

2

Discrimination result of group A

Group A

Group B

Discrimination result of group A

Discrimination result of group A

Max2.5ms

Min2.1ms

Min2.1ms

STROBE time

0

±

0.1ms

• The result of group discrimination (OUT2) will be determined and output when the set number (n) of OUT1

measured values is determined.

• STROBE time settings can be changed.

Refer to Strobe Output Time on page 5-47.

• OUT2 TIMING input and ZERO input are ignored.

Statistical Processing Timing Chart

Statistical results

Measured value

ON

OFF

Strobe output

STATS RUN output

ON

OFF

ON

OFF

STATS input

n-1

n

1

2

Statistical result of 1 to n

Max

Statistical data sampling period

2.5ms

Max

15ms

Max

2.5ms

• If the LS-7600 Series is under external synchronous control, sampling will start with the first determined

data after the rising of STATS input is recognized. The sampling operation of the LS-7600 Series will
continue up to the determined data at the moment the falling of STATS input is recognized, and the whole
data will be statistically processed. On completion of statistical processing, STATS RUN output will turn
OFF.

• If the LS-7600 Series is under internal synchronous control, sampling will start with the first determined

data after the rising of STATS input is recognized. The number of data items that have been preset will be
statistically processed. The statistical processing of the data starts after the number of data items is
determined. On completion of statistical processing, STATS RUN output will turn OFF. If the STATS input is
turned OFF while the data is sampled, the LS-7600 Series will cancel the sampling operation. Statistical
processing is unavailable if STATS input is turned OFF before the LS-7600 Series starts sampling data.