3. External Connection
PIO-64/64L(PCI)H, PI-128L(PCI)H, PO-128L(PCI)H
43
Example of Connection to LED
Figure 3.14. An Example to use Output O-80 < PIO-64/64L(PCI)H >, < PO-128L(PCI)H >
Example of Connection to TTL Level Input
Figure 3.15. Connection Example of Output and TTL level Input Signal
< PIO-64/64L(PCI)H >, < PO-128L(PCI)H >
O-80 (CNB : 7 pin)
LED
5.1k
Ω
Common pluus for output (CNB : 23 pin)
B
oa
rd
Common Minus for output (CNB : 1 pin)
+
-
When “1” is output to a relevant bit, the corresponding LED comes on.
When “0” is output to the bit, in contrast, the LED goes out.
External
Power
Supply
12 - 24 VDC
Common plus
for output
Output
TTL Level Input
VCC
Input Board
GND
2k
Ω
+
-
External
Power Supply
12 - 24 VDC
Common Minnus
for output
