3 Wiring
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3.3 Output Wiring
3.3.1 Normal/Hi-speed Transistor Output Wiring
DC5V Power 
supply
Logic processing circuit
Working power supply of 
the internal logic circuit
Y0
Y4
Y5
Equivalent circuit 
in the PLC
Output driving circuit
COM0
Y1
COM3
Y6
Y7
Y2
COM1
Y3
COM2
…
…
The preceding gure takes terminal layout of H
3U
-
1616MT/R as an example. The wiring of other models is 
subject to the actual terminal layout
3.3.2 Wiring of Relay Outputs
24Vdc Power 
supply
Logic processing circuit
Working power supply of the 
internal logic circuit
Y0
Y4
Y5
Equivalent circuit 
in the PLC
Output driving circuit
COM0
Y1
COM3
Y6
Y7
·
·
·
Y2
COM1
Y3
COM2
·
·
·