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10 Input Wiring Procedures
10.5 Pulse Catch (M8170 to M8175)
157
FX
3G
Series Programmable Controllers
User's Manual - Hardware Edition
1
Introduc
tion
2
Features an
d
Part Nam
es
3
Produc
t
Introducti
on
4
Specifi
cations
5
Ve
rsi
on and
Peri
pheral
De
vice
s
6
Sy
stem
Confi
gurati
on
7
Input/Output
N
os.,
Unit N
os.
8
Ins
tallati
on
9
Preparati
on
and
Power Suppl
y
Wi
rin
g
10
Input W
iring
10.5
Pulse Catch (M8170 to M8175)
The PLC (main unit) is provided with a pulse catch function and has 6 pulse catch input points.
→
For details on programming, refer to the programming manual.
10.5.1 Allocation of special memories to input numbers (ON duration of input signals)
10.5.2 Cautions for pulse catch
1. Non-overlap of input numbers
The input terminals X000 to X005 can be used for high-speed counter, input interruption, pulse catch, speed
detection (SPD) instructions and general-purpose input.
Take care not to overlap the input numbers.
2. Cautions in wiring
It is recommended to use shielded twisted-pair cables for connection cables.
Input number
Contact on sequence program
ON duration of input signal
X000
M8170
10 s or more
X001
M8171
X002
M8172
50 s or more
X003
M8173
10 s or more
X004
M8174
X005
M8175
50 s or more