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Up/Down
Counter
UP
DN
GND
PCI-1784
connector
CHnA+
CHnB+
EGND
Two_Pulse
Up Counter
UP
DN
GND
PCI-1784
connector
CHnA+
CHnB+
EGND
Two_Pulse
Down Counter
UP
DN
GND
PCI-1784
connector
CHnA+
CHnB+
EGND
Figure 3-4: Quadrature encoder (up/down counter) input connections
Note:
✎ In case you want to connect the Up/Down counter signal into the PCI-1784,
be sure that all the signals must be connected. The floating connection will
cause unexpected result.