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Input Time Constant Function
Input Time Constant Function
What is Input Time Constant Function?
●
Setting the effective pulse width for the input signals from external
input terminal. Input signal whose pulse width is smaller than the
effective pulse width is considered noise.
●
Time constant can be selected from the following, and width signals
over the set value are recognized as signals.
1) 4
µ
s
2) 8
µ
s
3) 16
µ
s
4) 32
µ
s
●
Time constant can be set individually for each of 8 external input
terminal groups.
(NX70 Pulse I/O unit NX70-PULSE4)
External input terminal [
I
]
Input allocation
1)
A1, A2
R0.0, R0.1
2)
A3, A4
R0.2, R0.3
3)
A5, A6
R0.4, R0.5
4)
A7, A8
R0.6, R0.7
5)
B1, B2
R0.8, R0.9
6)
B3, B4
R0.10, R0.11
7)
B5, B6
R0.12, R0.13
8)
B7, B8
R0.14, R0.15
Signals whose pulse width is smaller than
the effective pulse width are considered as
input error (noise).
Terminal input signal
Signals after time
constant setting
set time constant
(Signal output delays as time constant)
