The Programable Logic Controller (PLC) is used in all industries and has many features that provide long term reliable service. The PLC marketplace is about $9 Billion and growing at about 7% annually.
The programming language is called "ladder logic" and is straightforward and universal between different makes of PLCs. There are industrial codes for the computers and their ladder logic. You will learn these codes by using the ladder logic software.
This is an opportunity to get real hands on experience with creating a PLC application from wiring to programming while learning the ins and outs of wiring and programming PLCs.