In the second step the technology is analyzed.
This is about the question of which hardware and which signal structures are available.
Which sensors are available?
Which actuators are used (valves, motors, contactors)?
What feedback does the technology provide?
How is the communication set up (bus, I/O, safety)?
This analysis determines which zone types are required.
If a function provides no feedback, it must either be supplemented or secured via monitoring.
Selmo therefore forces technological completeness – every action needs feedback.
Representation:
A list or table with hardware symbols (sensor, valve, button, calculation) → corresponding zone types (IN, OUT, IN_OUT, MEM).
