Chapter 5 Wiring
5-36
5.5.1.2 Relay Type
Sinking
Internal
circuit
S/S
X0.0
I
Internal circuit
24VDC
Sourcing
Internal circuit
Internal
circuit
S/S
X0.0
I/
24VDC
5.5.1.3 Open-collector Input Type
Sinking
(NPN transistor whose collector is open)
S/S
X0.0
I/O
24VDC
NPN
Internal circuit
Internal
circuit
Sourcing
(PNP transistor whose collector is open)
S/S
X0.0
I/O
+Vcc
0V
24VDC
PNP
Internal circuit
Internal
circuit
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