Mitsubishi Electric MELSEC iQ-R User Manual page 154

■Pulse input modes and count timing
The following table shows the relationships between each pulse input mode and count timing.
"Pulse Input Mode"
1-phase multiple of 1 (1-Phase Multiple of
1+, 1-Phase Multiple of 1-)
1-phase multiple of 2 (1-Phase Multiple of
2+, 1-Phase Multiple of 2-)
CW/CCW (CW/CCW+, CW/CCW-)
2-phase multiple of 1 (2-Phase Multiple of
1+, 2-Phase Multiple of 1-)
2-phase multiple of 2 (2-Phase Multiple of
2+, 2-Phase Multiple of 2-)
2-phase multiple of 4 (2-Phase Multiple of
4+, 2-Phase Multiple of 4-)
3 CREATING A HARDWARE LOGIC
152
3.2 Multi Function Counter Block
Count timing
At up count
ΦA
ΦB
At down count
ΦA
ΦB
At up count
ΦA
ΦB
At down count
ΦA
ΦB
At up count
ΦA
ΦB
At down count
ΦA
ΦB
At up count
ΦA
ΦB
At down count
ΦA
ΦB
At up count
ΦA
ΦB
At down count
ΦA
ΦB
At up count
ΦA
ΦB
At down count
ΦA
ΦB
The value is counted up at the rise () of A.
B is Low.
The value is counted down at the fall () of A.
B is High.
The value is counted up at the rise () and fall () of A.
B is Low.
The value is counted down at the rise () and fall () of
A.
B is High.
The value is counted up at the rise () of A.
B is Low.
A is Low.
The value is counted down at the rise () of B.
When B is Low, the value is counted up at the rise () of
A.
When B is Low, the value is counted down at the fall ()
of A.
When B is Low, the value is counted up at the rise () of
A.
When B is High, the value is counted up at the fall () of
A.
When B is High, the value is counted down at the rise
() of A.
When B is Low, the value is counted down at the fall ()
of A.
When B is Low, the value is counted up at the rise () of
A.
When A is High, the value is counted up at the rise ()
of B.
When B is High, the value is counted up at the fall () of
A.
When A is Low, the value is counted up at the fall () of
B.
When A is Low, the value is counted down at the rise
() of B.
When B is High, the value is counted down at the rise
() of A.
When A is High, the value is counted down at the fall
() of B.
When B is Low, the value is counted down at the fall ()
of A.