The project
You join Halcombe Control Systems Ltd (simulated company)
You are the junior SCADA and HMI engineer on the control room upgrade of a water treatment works. The operators work twelve-hour shifts on what you build, so the screens must be calm and the alarms must mean something. You check a functional specification, scale and size tags, set alarm priorities with a matrix, and answer a client who wants everything flashing red. Later the client changes the scope, a scaling error causes a false alarm, a power dip floods the screen, a manager wants alarms on his phone with a shared password, and the historian loses 25 minutes. The skill is to be clear, polite and exact, and to keep the live plant safe.
The people in the story are roles, such as Lead Engineer, not real people.


