Definitions

Add On Instructions (AOIs)

A program (or function block) which is reused within the code multiple times.

Assembly

A set of processes (Systems) which when working together modifies a raw product and transforms that product into a different form.

Inputs / Outputs (IOs)

These are the inputs and outputs typically connected to the interfacing slots on the PLC. Although it is not just restricted to these and can include those inputs and outputs connected to remote racks and also those devices connected via a more advanced communication medium (such as ethernet / Profibus etc).

Original Equipment Manufacturer

This is referring to the equipment manufacturer that design and manufactures the component being discussed.

Programmable Logic Controllers (PLC)

This is referring to the computer that is designed to run a custom program (as discussed in this framework) for the industrial Assembly.

Product

A material which when supplied to the subject machine (Assembly) changes from one form to another form as intended by the original design of the machine.

System

A set of components (also known as Sub-Systems) which when working together influence the outcome of a product being processed through a piece of machinery (also known as the Assembly).

Sub System

A physical component which either provides an input or an output to a control system.