Feedback cycle
This diagram shows a control Sequences of instructions for a computer. for maintaining the water level in a fish tank.
Feedback cycle for a fish tank
The control program stores the highest and lowest acceptable water levels and what action to take if they're exceeded.
The process is continuous and is called a feedback cycle.
Stages of the feedback cycle
- Water level falls too low.
- Sensor detects water level is too low.
- Valve opened to let water in.
- Sensor detects water level is too high.
- Valve opened to let water out.