Patrick Schurig 18655452d9 feat(v2c): add integration plugin, JSON metadata, and build plumbing
Étape 1 complete: V2C Trydan nymea plugin (Modbus TCP, status Partial).

Plugin (IntegrationPluginV2c):
  - discoverThings: delegates to V2cTcpDiscovery, maps results to
    ThingDescriptors; createMethod "user" bypasses discovery.
  - setupThing: registers a NetworkDeviceMonitor (IP tracking on DHCP
    renewal), creates TrydanModbusTcpMaster, wires reachableChanged →
    initialize() → state update on initializationFinished(), then starts
    periodic polls on a 30s PluginTimer.
  - updateThingStates: ChargeState 0/1/2 → pluggedIn/charging;
    power = (PauseState==0 AND Lock==0) per evcc trydan.go Enabled().
  - handleDynamicConflict: if Dynamic==1 (V2C internal PV optimizer),
    write PauseDynamic=1 to suppress it.  NEVER write Dynamic=0 (silences
    ChargePower telemetry).  Writes only on state transition to minimize
    flash wear.  cf. github.com/evcc-io/evcc/issues/28047.
  - Action "power": writes PauseState then Lock (always in mirror), then
    fire-and-forgets PauseDynamic if Dynamic==1.  Action handlers filter
    writeCompleted by register address to avoid reacting to concurrent
    background writes.
  - Action "maxChargingCurrent": clamps to [minIntensity, maxIntensity],
    writes Intensity.  Below 6A → pause instead of invalid setpoint.

JSON (integrationpluginv2c.json):
  - ThingClass "trydan" implementing evcharger + connectable + networkdevice.
  - settingsTypes: suspendInternalOptimizer (bool, default true) — allows
    the user to disable Dynamic conflict management if they want the V2C
    PID to remain active alongside the HEMS.
  - State "chargeEnergy" exposed as diagnostic only (NOT sessionEnergy) —
    firmware reliability on this register is unvalidated; cf. evcc #28047.

Build (v2c.pro):
  - MODBUS_CONNECTIONS intentionally empty: the modbus-tool code generator
    assumes non-overlapping block reads; leaving it empty skips generation
    while still linking nymea-modbus via the PKGCONFIG in modbus.pri.

VendorId 56c3e7bb… is new (no existing V2C vendor in the repo).
PluginId  f0692725… is new (generated for this plugin).

PORTING_STATUS_modbus.md documents register sources, the 4 items that
require validation on real hardware, and the "no beta matrix" constraint.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-12 13:49:49 +02:00

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JSON

{
"title": "V2C Trydan",
"tagline": "Connect V2C Trydan EV chargers over Modbus TCP.",
"stability": "consumer",
"offline": true,
"technologies": [
"network"
],
"categories": [
"energy"
]
}