The CPT, also known as the compute, is an instruction which has extensive capabilities when it comes to mathematical and logic functions in ladder logic. This instruction allows the user to input a complex string of instructions composed of computational, operational and comparison functions and computes the result which is stored in the specified register. The instruction will work with operands used in the based instructions as well as many others.
This is a companion discussion topic for the original entry at https://www.solisplc.com/tutorials/plc-programming-computational-mathematical-instructions-cpt-compute