Datasheet

Multifunction Preset Counter H7CX-A (Counter Function) 23
Input Modes and Present Value
Note: 1. If the configuration selection is set to dual counter, CP1 and
CP2 input will operate in the same way as the count input
(CP1) of UP (increment) mode.
2. a must be greater than the minimum signal width and b
must be at least 1/2 the minimum signal width. If they are
less, a count error of
±1 may occur.
Minimum signal width:16.7 ms (when maximum counting
speed = 30 Hz)
100
µs (when maximum counting
speed = 5 kHz)
3. Counting starts when the CP1 is turned ON after turning ON
the power.
4. The meaning of the H and L symbols in the tables is ex-
plained below.
UP (Increment) Mode DOWN (Decrement) Mode
0
CP1
H
L
CP2
H
L
0
1
2
4
3
5
A A
CP1: Count input; CP2: Prohibit (gate) input
Present
value
a must be greater than the minimum signal width. (See note 2.)
Prohibit
n
CP1
H
L
CP2
H
L
0
n−1
n−2
n−4
n−3
n−5
A A
Prohibit
a must be greater than the minimum signal width. (See note 2.)
CP1: Count input; CP2: Prohibit (gate) input
Present
value
0
CP1
H
L
CP2
H
L
0
1
2
4
3
5
A A
Prohibit
a must be greater than the minimum signal width. (See note 2.)
CP1: Prohibit (gate) input; CP2: Count input
Present
value
(See note 3.)
n
CP1
H
L
CP2
H
L
0
n−1
n−2
n−4
n−3
n−5
A A
Prohibit
a must be greater than the minimum signal width. (See note 2.)
CP1: Prohibit (gate) input; CP2: Present value
Present
value
(See note 3.)
UP/DOWN A
Command Input Mode
UP/DOWN B
Individual Input Mode
UP/DOWN C
Quadrature Input Mode
0
CP1
H
L
CP2
H
L
0
1
2
2
2
1
3
3
A A
a must be greater than the minimum signal width. (See note 2.)
Present
value
0
CP1
H
L
CP2
H
L
0
1
222
11
3 3
Present
value
0
CP1
H
L
CP2
H
L
0
1
2
2
2
1
3
3
B B B B
b must be at least 1/2 the minimum signal width. (See note 2.)
Present
value
Input method
Symbol
No-voltage input
(NPN input)
Voltage input
(PNP input)
H Short-circuit 4.5 to 30 VDC
L Open 0 to 2 VDC