Sinking Sourcing INPUT concept of PLC

Inputs

⇒Sinking digital I/O (input/output) provides a grounded connection to the load.

⇒Sourcing digital I/O provides a voltage source to the load.

↪In a sinking sourcing concept how to connect input like switches & sensors in which way.so, below diagram is for sinking connection of input.

↪Most commonly used option is
   *Sinking Input &
   *Sourcing Output

➤Sinking Input

⇒Sinking=Common Ground line (-)

➤Sourcing Input

⇒Sourcing=Common Vcc line (+)

→In a soucing condition plc work as a source.

*Thank you*