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4 Mounting and Wiring
4.2.4 CPU I/O Connectors
( 5 ) Input Circuits
The following table shows the CPU I/O Connector input circuit specifications.
Item
Specifications
DI-00
General-purpose input (shared with interrupts)
DI-01 to DI-07
General-purpose input
Inputs
8 points
Input Format
Sink mode/source mode input
Isolation Method
Photocoupler
Input Voltage
±24 VDC±20%
Input Current
4.1 mA (TYP.)
ON Voltage/Current
15 VDC min./2.0 mA min.
OFF Voltage/Current
5 VDC max./1.0 mA max.
ON Time/OFF Time
ON: 1 ms max.
OFF: 1 ms max.
Number of Commons
8 points
Œ DI_00 is shared with an interrupt input. If DI_00 is turned ON while interrupts are enabled, the
interrupt processing drawing is executed.
+24 V
+5 V
DI_COM
R
DI_IN
5.6 kΩ/0.5 W
R
Input
register
R
0 24
0.01µF
Fig. 4.1 Digital Input Circuit (Sink Mode Input)
+24 V
+5 V
DI_COM
R
DI_IN
5.6 kΩ/0.5 W
R
Input
register
R
0 24
Fig. 4.2 Digital Input Circuit (Source Mode Input)
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