The project
You join Tarnbrook Controls Ltd (simulated company)
You are the junior PLC programmer on the control upgrade of bottling line 2 for Larkfield Drinks. The Lead Engineer gives you the client's requirements, a draft design with mistakes in it, a wiring schedule and tickets with acceptance criteria. Over four weeks you write the I/O list, check the design, program counting and level logic, run the factory acceptance test, handle a client change request, meet the faults that only show up on site, and hand over. Some people will ask you to cut corners. The skill is knowing which ones you cannot cut.
The people in the story are roles, such as Lead Engineer, not real people.


