11
High-speed Counter Function
Pulse I/O unit has four high-speed counter channels. There are three
input modes for counting. Input mode can be set for each CH.
Direction control
Counter value changes with pulse train and direction signals.
Individual input
Count value changes with each input signal at CW and CCW.
Phase differential
Count value changes with the phase differential input on encoder and
others.
(1)
Value for when input time constant (filter) is set to None.
n
n+1
n+2
n+1
n
n-1
ta, tb, tc, td
≥
2.5
µ
s
(1)
IN.A
IN.B
Count number
on
off
ta
tb
tc
td
n
n+1
n+2
n+1
n
n-1
ta, tb, tc
≥
2.5
µ
s
(1)
IN.A
IN.B
Count number
on
off
ta
tb
tc
n
n+1
n+2
n+1
n
ta, tb, tc, td
≥
2.5
µ
s
(1)
IN.A
IN.B
Count number
on
off
ta tb tc td
