HMI Horner XL4 PLC PLC Basics

Horner XL4 Rotate and Shift Register

The Horner APG XL4 all in one controller has several different instructions to shift and rotate the bits, bytes, words or double words in the memory. We will be discussing the bitwise operations of the shift and rotate instructions. Looking further into the move operations we will look at the Element Rotate and Element Shift instructions as they pertain to a conveyor belt tracking application.