The input output system - stepper motor , Electrical Engineering

The Input Output System

The input output  system provides  the physical  connection between  the equipment  and the PLC there are many  different kinds  of I/O cards  which serve to condition the type  of input  or output  so the CPU  can use  if for  its logic. This  simply  a matter of determining  what  inputs and outputs  are needed, filing the rack with the  appropriate cards  then addressing them  correctly in the CPU  program.


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