The current sourcing sensor shown must be matched with a _____ PLC input module.
A)current sinking
B)current sourcing
C)alternating current
D)either a or b

Question

The current sourcing sensor shown must be matched with a _____ PLC input module. 
A)current sinking 
B)current sourcing 
C)alternating current 
D)either a or b

Quizplus · Accepted Answer

The current sourcing sensor must be matched with a current sinking PLC input module because the sensor provides the current and the input module acts as a sink, by providing a path for the current to flow. This allows the PLC to detect the presence or absence of the sensor signal. A current sourcing input module would not be suitable because it provides the current, which would result in a conflict with the sensor's output. The other options, alternating current, and either a or b, are not relevant or specific enough to be correct choices.

The Current Sourcing Sensor Shown Must Be Matched with a _____