4. Functions
CNT32-4MT(LPCI)
45
Multiplication of Count Input
Setting the count input multiplication setting to two or four times enables you to fine-tune controlling.
A
A
B
B
UP
DOWN
A
B
When counterclockwise is specified
During 2-phase input
When clockwise is specified
Single-phase input
Single-phase input with gate control attached
Multiply by 1
Multiply by 4
Multiply by 2
Multiply by 1
Multiply by 2
Multiply by 4
Multiply by 1
Multiply by 2
Multiply by 2
Multiply by 1
Figure 4.4. Example counting when count input multiplication is set
Synchronous Clear
When incremental counting in the CW (clockwise) direction is set with phase-Z positive logic,
the board clears the counter at the rising edge of the phase-A signal while the phase-Z input goes high
and starts counting at the rising edge of the phase-A signal after the phase-Z input goes low.
2
0
1
1
Phase-A
(Phase-A/UP)
Phase-B
(Phase-B/DOWN)
Phase-Z
(Phase-Z/CLR)
Count value
* When decremental counting in the CW direction is set, the PC Card performs
decremental counting at the rising edge of the phase-A signal while
the phase-B input remains low.
Figure 4.5. Example counting during synchronous clear
