# Control modes

Each page describes one `pumpingStation` control mode and how it uses the shared [basin model](../functional-description.md#basin-model) — specifically, how it sets the three control thresholds (`minLevel`, `startLevel`, `maxLevel`) and computes the demand it sends to the MGC.

The two **safety** thresholds (`dryRunLevel` and `overflowLevel`) are mode-independent and are enforced by the safety layer outside any mode. They never appear in a mode's policy.

## Template

Every mode page follows the same structure:

1. **At a glance** — one sentence + small fact table (inputs, output, status)
2. **Diagram** — reference to `../diagrams/modes/<mode>.drawio.svg`
3. **Inputs** — what signals the mode reads
4. **Threshold policy** — how it sets/adjusts `minLevel`, `startLevel`, `maxLevel`
5. **Demand formula** — how it turns inputs into a 0-100 % demand for the MGC
6. **Edge cases** — cold start, sensor dropout, interaction with safety layer
7. **Related** — links to other modes + functional description

## Implementation status

| Mode | Status | Page |
|---|---|---|
| `levelbased` | ✅ implemented | [levelbased.md](levelbased.md) |
| `flowbased` | 🚧 placeholder in code | — |
| `pressureBased` | 🚧 placeholder in code | — |
| `percentageBased` | 🚧 placeholder in code | — |
| `powerBased` | 🚧 placeholder in code | — |
| `hybrid` | 🚧 placeholder in code | — |
| `manual` | ✅ implemented (Qd topic) | — |