18 CompactLogix Controller
Rockwell Automation Publication 1769-IN082C-EN-P - February 2013
DC Inputs Wiring Diagram
(1)
(1) Sinking/Sourcing Inputs - Sourcing/sinking describes the current flow between the I/O and the field device. Sourcing I/O circuits supply (source)
current to sinking field devices. Sinking I/O circuits are driven by a current sourcing field device. Field devices connected to the negative side (DC
Common) of the field power supply are sinking field devices. Field devices connected to the positive side (+V) of the field supply are sourcing field
devices. Europe: DC sinking input and sourcing output circuits are the commonly used options.
+ DC (sinking)
- DC (sourcing)
24V DC
+ DC (sinking)
- DC (sourcing)
- DC (sinking)
+ DC (sourcing)
- DC (sinking)
+ DC (sourcing)
+ DC (sinking)
- DC (sourcing)
24V DC
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