100 lines
4.1 KiB
Markdown
100 lines
4.1 KiB
Markdown
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# pumpingStation - Example Flows
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Three Node-RED flows demonstrating the Phase-2 pumpingStation node on the
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canonical topic API (`set.mode`, `set.inflow`, `set.demand`,
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`cmd.calibrate.volume`, `cmd.calibrate.level`). Legacy aliases
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(`changemode`, `q_in`, `Qd`, `calibratePredictedVolume`,
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`calibratePredictedLevel`, `registerChild`) still work but log a
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one-time deprecation warning; these fresh flows use the canonical names only.
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## Files
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| File | Tier | Tabs | Purpose |
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|---|---|---|---|
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| `01-Basic.json` | 1 | Process Plant | Single pumpingStation driven by inject nodes - no parent, no dashboard. |
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| `02-Integration.json` | 2 | Process Plant + Setup | Adds a `measurement` level child and a `machineGroupControl` parent with two `rotatingMachine` pumps. Demonstrates the Phase-2 parent/child handshake. |
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| `03-Dashboard.json` | 3 | Process Plant + Dashboard UI + Setup | Tier 2 plumbing plus a FlowFuse Dashboard 2.0 page with 3 charts (flow / level / volume %), text widgets, and 2 controls (mode dropdown + demand slider). |
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## Prerequisites
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- Node-RED with the EVOLV package installed (so the `pumpingStation`,
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`measurement`, `machineGroupControl`, and `rotatingMachine` node
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types are registered).
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- For `03-Dashboard.json`: `@flowfuse/node-red-dashboard` (Dashboard 2.0).
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## How to load
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```bash
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# Drop a file into a running Node-RED instance using its Admin API.
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curl -X POST -H 'Content-Type: application/json' \
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--data @nodes/pumpingStation/examples/01-Basic.json \
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http://localhost:1880/flows
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```
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Or in the editor: **Menu -> Import -> select file -> Import**. The flows
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import into their own tabs and can be deployed immediately.
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## 01-Basic - what to try
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1. Deploy.
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2. Inject `set.mode = manual`.
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3. Inject `set.inflow = 60 m3/h` - the basin starts filling. Watch the
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formatted Port 0 payload in the debug sidebar.
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4. Inject `set.demand = 40 %` - in manual mode this would feed any
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registered children; here there are no pump children so it is logged
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and shown on Port 0.
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5. Inject `cmd.calibrate.volume = 25 m3` to jump the predicted-volume
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integrator to half-full.
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## 02-Integration - what to try
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1. Deploy. The Setup tab fires `set.mode = levelbased` to the station
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and `set.mode = auto` to the MGC.
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2. The two pumps register with the MGC via Port 2; the MGC and the level
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sensor register with the station via Port 2. Watch the registration
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debug taps to confirm.
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3. The level inject pushes a 1.6 m measurement so the station sees a
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non-zero starting level. Setup also seeds `set.inflow = 60 m3/h`.
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4. The station's `controlMode = levelbased` then drives the MGC, which
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dispatches to Pump A / Pump B.
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## 03-Dashboard - what to try
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1. Deploy.
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2. Open the dashboard at `http://localhost:1880/dashboard/page/pumping-station`.
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3. Use the **Control mode** dropdown to switch between `manual`,
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`levelbased`, `flowbased`, `none`.
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4. In manual mode, drag the **Manual demand** slider - the demand cascades
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to the MGC and on to the pumps.
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5. The three charts (flow, level, volume %) plot live data; the four text
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widgets show state, percControl, direction, and time-to-empty.
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## Layout conventions
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These flows follow the EVOLV layout rule set in
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`.claude/rules/node-red-flow-layout.md`:
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- Tabs split by **concern**: Process Plant (EVOLV nodes) / Dashboard UI
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(`ui-*` widgets) / Setup (once-true injects).
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- Cross-tab wiring via **named link out / link in channels**:
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`setup:to-ps-mode`, `setup:to-ps-inflow`, `setup:to-mgc-mode`,
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`cmd:ps-mode`, `cmd:ps-demand`, `evt:flow`, `evt:level`,
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`evt:volpct`, `evt:state`, `evt:perc`, `evt:dir`, `evt:tempty`.
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- **Lane positions** L0-L7 = `[120, 360, 600, 840, 1080, 1320, 1560, 1800]`,
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driven by each node's S88 level (Process Cell on L5, Unit on L4,
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Equipment on L3, Control Module on L2).
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- **Group boxes** wrap each parent + its direct children, coloured by the
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parent's S88 level.
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## Regenerating
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These flows are generated from `tools/build-examples.js`. Edit the
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generator, never the JSON, then:
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```bash
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node nodes/pumpingStation/tools/build-examples.js
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```
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The script writes `01-Basic.json`, `02-Integration.json`, and
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`03-Dashboard.json` into this directory.
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