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CHAPTER 8 FUNCTIONS
8
8.
Pulse
 I
nput
 Modes
 and 
Count
in
g M
et
hods
8.
1.
1 T
yp
es of
 pul
se input
 m
odes
8.1
Pulse Input Modes and Counting Methods
This section describes the pulse input modes and the counting methods.
8.1.1
Types of pulse input modes
The following six pulse input modes are prepared: 1-phase pulse input (1 multiple/2 multiples), CW/CCW pulse input, 
and 2-phase pulse input (1 multiple/2 multiples/4 multiples).
(1) Pulse input modes and count timing
Pulse input mode
Count timing
1-phase multiple of 1
At up count
Counts on the rising edge (
) of A.
B and CH Down count command (Y3, YB) are off.
At down count
Counts on the falling edge (
) of A.
B or CH Down count command (Y3, YB) is on.
1-phase multiple of 2
At up count
Counts on the rising edge (
) and the falling edge () 
of 
A.
B and CH Down count command (Y3, YB) are off.
At down count
Counts on the rising edge (
) and the falling edge () 
of 
A.
B or CH Down count command (Y3, YB) is on.
CW/CCW
At up count
Counts on the rising edge (
) of A.
B is off.
At down count
A is off.
Counts on the rising edge (
) of B.
2-phase multiple of 1
At up count
Counts on the rising edge (
) of A while B is off.
At down count
Counts on the falling edge (
) of A while B is off.
A
B and 
CH    Down 
count command 
(Y3, YB)
A
B or 
CH    Down 
count command 
(Y3, YB)
A
B and 
CH    Down 
count command 
(Y3, YB)
A
B or 
CH    Down 
count command 
(Y3, YB)
A
B
A
B
A
B
A
B