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High-speed Counter Board Section 8-1
Note The function of encoder inputs A and B in Pulse/Direction Mode and Up/Down
Mode differs from the Pulse I/O Board (CQM1H-PLB21).
Phase A Phase B 1x 2x 4x
↑
L Count up Count up Count up
H
↑
--- --- Count up
↓
H --- Count up Count up
L
↓
--- --- Count up
L
↑
--- --- Count down
↑
H --- Count down Count down
H
↓
--- --- Count down
↓
L Count down Count down Count down
Up/Down Mode
Encoder input A
(UP input)
Encoder input B
(DOWN input)
Decrement
Pulse/Direction Mode
Encoder input A
(Pulse input)
Encoder input B
(Direction input)
DecrementIncrement Increment