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9 Input Wiring Procedures
9.4 Pulse Catch (M8170 to M8175)
84
FX
3S
Series Programmable Controllers
User's Manual - Hardware Edition
9.4
Pulse Catch (M8170 to M8175)
The 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.
9.4.1
Allocation of special memories to input numbers (ON duration of input signals)
9.4.2
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, SPD
instruction, ZRN instruction, DSZR instruction and general-purpose inputs.
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
μ
s or more
X001
M8171
X002
M8172
50
μ
s or more
X003
M8173
X004
M8174
X005
M8175