Omron HOME SECURITY SYSTEM - MOTION SENSOR FQM1-MMA21 User Manual

Page 52

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29

Function Tables Arranged by Purpose

Section 1-7

Operation with
highly precise
timing

Increasing accu-
racy of external
output ON time.
(Feeding, hole
opening, tape
winding, gluing,
and other appli-
cations)

High-precision
ON outputs, with
minimum unit of
0.01 ms

• One-shot pulse

outputs
(STIM(980)
instruction)

7-5 Pulse Inputs

Set pulse output operation mode to one-shot
output.

Specified outputs turn ON during specified inter-
val (0.01 ms to 9,999 ms).

Output OFF after specified time elapses is per-
formed by hardware, which gives accurate ON
time with no fluctuation.

Can be used within interrupt tasks because uses
special timer.

Highly accurate
measurement of
external input
signal ON/OFF
time

Starting/stop-
ping high-preci-
sion timer at
0.001-ms unit
min.

• Pulse output

counter mea-
surement
mode (time
measurement)
(Unit: 0.001 ms
min.)

7-6-8 Time Measurement with the Pulse
Counter

Time measurement starts/stops with input inter-
rupt (MSKS(690) instruction) + STIM(980)
instruction within interrupt tasks. The elapsed
time is stored in Motion Control Module Auxiliary
Area. This data can be read using the PRV
instruction.

Note Pulse output 1 or pulse output 2 must be

set to pulse counter time measurement in
System Setup.

Various pro-
cessing (instruc-
tion execution)
at each one of
multiple time
intervals, using
high-precision
timer

Outputting
ON/OFF pat-
tern when pulse
output counter
PV is within set
value range.

• Pulse output

counter mea-
surement
mode (time
measurement)

• Range com-

parison bit pat-
tern output

7-6-8 Time Measurement with the Pulse
Counter

Can be used to obtain output pattern each time
interval elapsed after timer start.

Timer accuracy can be selected from as low as
0.001 ms.

Timing output
according to
workpiece posi-
tion

Timing output
using high-
speed counter
PV

Outputting
ON/OFF pat-
tern when high-
speed counter
PV within cer-
tain range

• High-speed

counter range
comparison bit
pattern output
(Executes
comparison at
execution of
CTBL(882)
instructions)

7-5-8 Pulse Input Function Description

Outputs set bit pattern when high-speed counter
PV enters the range between set upper and
lower limits.

Purpose

Operation

Main functions

used

Details

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