LS Industrial Systems XGF-HO2A - Page 22

Chapter 2 Specifications
2-9
(2) Up/Down count operation by B phase input signal
(a) 1 phase 2 input 1 multiplication input
When input pulse of A phase is rising, count operates and up/down count operation is set by level of B phase input pulse.
Up/Down count classification A phase pulse rising A phase pulse falling
B phase input pulse Off Up count (+1) -
B phase input pulse On Down count (-1) -
DownUp Up
B phase input
pulse
A phase input
pulse
Count 10 11 12 13 12 11 10 11
Off
On
Off
(b) 1 phase 2 input 2 multiplication input
When input pulse of A phase is rising and falling, count operates and up/down count operation is set by level of B phase input
pulse.
Up/Down count classification A phase pulse rising A phase pulse falling
B phase input pulse Off Up count (+1) Up count (+1)
B phase input pulse On Down count (-1) Down count (-1)
DonwUp Up
B phase input
pulse
A phase input
pulse
Count 10111315151311 9
Off
On
Off
12 14 16 14 12 10 8