8. Connections of I/O Interface
8.2 Connecting with Remote I/O Unit
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8.2.4 Outline of Digital Signal Input Circuit
Sink type and source type share the digital signal input circuit.
Connect according to each respective diagram below.
COM
(Machine side)
A3,B3
Sink type
DI-L/DI-R
0V(RG)
0V(RG)
0V(RG)
0V(RG)
0V(RG)
24VDC(+)
2.2k
Ω
2.2k
Ω
2.2k
Ω
2.2k
Ω
2.2k
Ω
Control
unit
COM
(Machine side)
A3,B3
Source type
DI-L/DI-R
0V(RG)
24VDC(+)
2.2k
Ω
2.2k
Ω
2.2k
Ω
2.2k
Ω
2.2k
Ω
Control
unit
24VDC(+)
24VDC(+)
24VDC(+)
24VDC(+)
Input circuit