EV řízení: zápis Amps-to-use přes journal + watchdog + okamžitý replan po příjezdu

Bod 1 — write_ev_setpoints reálně (konec TODO stubu):
- reg 15 (0=stop, 6–32 A) z plánu přes _current_limit_for_charger; plná
  journal pipeline (create_modbus_commands → execute, verify job 2 min generic)
- watchdog reg 19=300 s + reg 20=8 A: výpadek EMS → wallbox po 5 min failsafe
  8 A (auto se přes noc nabije); drop-unchanged → zapisuje se jen při změně
- fn_modbus_last_verified_map: + p_asset_type (drop 2-arg; dosud hardcoded
  'inverter' — pro chargery vracela {})
- verify: SELF_SUSTAIN fallback explicitně jen pro asset_type='inverter' —
  mismatch wallboxu nesmí degradovat režim celé site
- journal register_name: mimo inverter platí jméno od volajícího

Bod 2 — telemetry_collector: přechod available→connected spustí fire-and-forget
run_rolling_replan(triggered_by=ev_arrival:<code>) + export_setpoints přes BG
pool — reakce na příjezd ~60 s místo až 15 min.

Bod 3 (Tesla API SoC) čeká na developer credentials.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

backend/services/control/modbus_journal.py

@@ -46,8 +46,12 @@ async def _fetch_written_deye_clock_commands(
     return list(rows)
 
 
-async def _fetch_last_verified_inverter_registers(
-    site_id: int, inverter_asset_id: int, db: asyncpg.Connection
+async def _fetch_last_verified_registers(
+    site_id: int,
+    asset_id: int,
+    db: asyncpg.Connection,
+    *,
+    asset_type: str = "inverter",
 ) -> dict[int, int]:
     """
     Poslední hodnota na zařízení podle journalu (jen status verified).
@@ -55,15 +59,25 @@ async def _fetch_last_verified_inverter_registers(
     """
     raw = await db.fetchval(
         """
-        select ems.fn_modbus_last_verified_map($1::int, $2::int)
+        select ems.fn_modbus_last_verified_map($1::int, $2::int, $3::text)
         """,
         site_id,
-        inverter_asset_id,
+        asset_id,
+        asset_type,
     )
     data = raw if isinstance(raw, dict) else json.loads(raw)
     return {int(k): int(v) for k, v in data.items()}
 
 
+async def _fetch_last_verified_inverter_registers(
+    site_id: int, inverter_asset_id: int, db: asyncpg.Connection
+) -> dict[int, int]:
+    """Zpětně kompatibilní alias (Deye cesty)."""
+    return await _fetch_last_verified_registers(
+        site_id, inverter_asset_id, db, asset_type="inverter"
+    )
+
+
 def _drop_registers_matching_last_verified(
     registers: list[tuple[int, str, int]],
     last_verified: dict[int, int],
@@ -102,8 +116,14 @@ async def create_modbus_commands(
     Vrátí list command IDs.
     """
     ids: list[int] = []
-    for reg, _ignored_name, val in registers:
-        register_name = DEYE_REGISTER_NAMES.get(reg, f"reg_{reg}")
+    for reg, given_name, val in registers:
+        # Deye registry mají kanonická jména; pro ostatní zařízení (Teltonika…)
+        # platí jméno dodané volajícím.
+        register_name = (
+            DEYE_REGISTER_NAMES.get(reg)
+            if asset_type == "inverter"
+            else None
+        ) or given_name or f"reg_{reg}"
         cmd_id = await db.fetchval(
             """
             INSERT INTO ems.modbus_command

backend/services/control/outputs.py

@@ -13,6 +13,32 @@ from services.control.models import ControlSetpoints, OperatingModeInfo
 
 logger = logging.getLogger(__name__)
 
+# Teltonika TeltoCharge – zápisové registry (oficiální protokol rev 0.5;
+# docs/04-modules/modbus-registers-teltocharge.md). FC 16 přes journal.
+TELTO_REG_AMPS_TO_USE = 15        # 0 = stop, 6–32 A
+TELTO_REG_COMM_TIMEOUT_S = 19     # watchdog: bez komunikace → failsafe
+TELTO_REG_FAILSAFE_CURRENT_A = 20
+#: Výpadek EMS: po 5 min bez zápisu wallbox přejde na failsafe proud —
+#: auto se přes noc nabije i bez EMS (pomalu), místo aby stálo na 0 A.
+TELTO_WATCHDOG_TIMEOUT_S = 300
+TELTO_WATCHDOG_FAILSAFE_A = 8
+
+
+def _telto_setpoint_registers(current_a: int) -> list[tuple[int, str, int]]:
+    """Registry pro jeden export tick: limit proudu + watchdog konfigurace.
+
+    Watchdog (19/20) se posílá s každým tickem, ale journal drop-unchanged ho
+    po prvním verified zápisu přeskakuje — reálně se zapíše jednou.
+    """
+    a = int(current_a)
+    if a < 6:
+        a = 0
+    return [
+        (TELTO_REG_AMPS_TO_USE, "telto_amps_to_use", min(a, 32)),
+        (TELTO_REG_COMM_TIMEOUT_S, "telto_comm_timeout_s", TELTO_WATCHDOG_TIMEOUT_S),
+        (TELTO_REG_FAILSAFE_CURRENT_A, "telto_failsafe_a", TELTO_WATCHDOG_FAILSAFE_A),
+    ]
+
 
 def _current_limit_for_charger(charger_code: str, sp: ControlSetpoints) -> int:
     c = (charger_code or "").strip().lower()
@@ -34,9 +60,16 @@ def _current_limit_for_charger(charger_code: str, sp: ControlSetpoints) -> int:
 async def write_ev_setpoints(
     site_id: int, setpoints: ControlSetpoints, db: asyncpg.Connection
 ) -> str:
+    from services.control.modbus_journal import (
+        _drop_registers_matching_last_verified,
+        _fetch_last_verified_registers,
+        create_modbus_commands,
+        execute_modbus_commands,
+    )
+
     rows = await db.fetch(
         """
-        SELECT ec.code, se.host, se.port, se.unit_id
+        SELECT ec.id AS asset_id, ec.code, se.host, se.port, se.unit_id
         FROM ems.asset_ev_charger ec
         JOIN ems.site_endpoint se ON se.id = ec.endpoint_id
         WHERE ec.site_id = $1
@@ -50,15 +83,49 @@ async def write_ev_setpoints(
     if not rows:
         return "OK EV: no schedulable chargers"
 
+    written = 0
     for row in rows:
         code = row["code"]
+        asset_id = int(row["asset_id"])
+        host = str(row["host"])
+        port = int(row["port"] or 502)
+        unit_id = int(row["unit_id"] if row["unit_id"] is not None else 1)
         current_a = _current_limit_for_charger(code, setpoints)
+
+        registers = _telto_setpoint_registers(current_a)
+        last_verified = await _fetch_last_verified_registers(
+            site_id, asset_id, db, asset_type="ev_charger"
+        )
+        registers, skipped = _drop_registers_matching_last_verified(
+            registers, last_verified
+        )
+        if not registers:
+            logger.debug("EV setpoint [%s]: beze změny (%s A)", code, current_a)
+            continue
+
+        cmd_ids = await create_modbus_commands(
+            site_id,
+            None,
+            "ev_charger",
+            asset_id,
+            code,
+            host,
+            port,
+            unit_id,
+            registers,
+            db,
+        )
+        ok = await execute_modbus_commands(cmd_ids, db)
+        written += 1
         logger.info(
-            "EV setpoint [%s]: %sA (TODO: Modbus registers)",
+            "EV setpoint [%s]: %s A (regs %s%s) -> %s",
             code,
             current_a,
+            [r for r, _, _ in registers],
+            f", skip {skipped}" if skipped else "",
+            "written" if ok else "FAILED",
         )
-    return f"OK EV: logged {len(rows)} charger(s) (Modbus TODO)"
+    return f"OK EV: {written}/{len(rows)} charger(s) written"
 
 
 async def write_heat_pump_setpoint(

backend/services/control/verify.py

@@ -353,7 +353,12 @@ async def verify_modbus_commands(
                 await execute_modbus_commands([cmd_id], db)
                 await verify_modbus_commands([cmd_id], db, site_id)
             else:
-                if deye_reg_triggers_self_sustain_after_verify_exhaust(reg):
+                # SELF_SUSTAIN fallback je Deye politika — mismatch na jiném
+                # zařízení (EV wallbox…) nesmí degradovat režim celé lokality.
+                if (
+                    str(cmd["asset_type"]) == "inverter"
+                    and deye_reg_triggers_self_sustain_after_verify_exhaust(reg)
+                ):
                     logger.critical(
                         "[cmd %s] 3 failed attempts, switching to SELF_SUSTAIN",
                         cmd_id,

backend/services/telemetry_collector.py

@@ -13,6 +13,39 @@ from services.modbus_client import get_modbus_client
 
 logger = logging.getLogger(__name__)
 
+#: Pool pro fire-and-forget akce mimo hlavní poll spojení (např. replan po
+#: příjezdu EV). Nastavuje run_telemetry_loop_wrapper.
+_BG_POOL: asyncpg.Pool | None = None
+
+
+async def _on_ev_arrival(site_id: int, charger_code: str) -> None:
+    """Okamžitý replan + export po příjezdu EV (jinak by se čekalo až na */15).
+
+    Deferred importy: planning_engine/control_exporter importují control balík,
+    který se importuje nezávisle — vyhýbáme se importnímu cyklu při startu.
+    """
+    if _BG_POOL is None:
+        logger.warning("EV arrival: BG pool není k dispozici, čeká se na rolling tick")
+        return
+    try:
+        from services.control_exporter import export_setpoints
+        from services.planning_engine import run_rolling_replan
+
+        async with _BG_POOL.acquire() as conn:
+            await run_rolling_replan(
+                site_id, conn, triggered_by=f"ev_arrival:{charger_code}"
+            )
+            await export_setpoints(site_id, conn)
+        logger.info(
+            "EV arrival replan+export done (site=%s, charger=%s)",
+            site_id,
+            charger_code,
+        )
+    except Exception:
+        logger.exception(
+            "EV arrival replan failed (site=%s, charger=%s)", site_id, charger_code
+        )
+
 # Deye SUN – holding registry (decimal adresa = přímo pro read_holding_registers)
 DEYE_REG_RUN_STATE = 500
 DEYE_REG_BATT_CHARGE_TODAY = 514
@@ -254,6 +287,7 @@ async def poll_ev_chargers(site_id: int, db: asyncpg.Connection) -> None:
             )
             if previous_status == "available" and current_status != "available":
                 logger.info("EV arrival detected on charger %s", code)
+                asyncio.create_task(_on_ev_arrival(site_id, str(code)))
             elif previous_status != "available" and current_status == "available":
                 logger.info("EV departure detected on charger %s", code)
 
@@ -307,6 +341,8 @@ async def run_telemetry_loop(conn: asyncpg.Connection) -> float:
 
 async def run_telemetry_loop_wrapper(pool: asyncpg.Pool) -> None:
     """Background task: každá iterace získá spojení z poolu; neblokuje pool během sleep."""
+    global _BG_POOL
+    _BG_POOL = pool
     while True:
         try:
             async with pool.acquire() as conn:

db/routines/R__002_fn_modbus_last_verified_map.sql

@@ -1,8 +1,13 @@
 -- map register -> value_verified z modbus_command (poslední verified řádek per register)
+-- Od 2026-06-11 generické přes p_asset_type (inverter / ev_charger / …);
+-- starou 2-arg signaturu dropnout (default by způsobil ambiguitu).
+
+drop function if exists ems.fn_modbus_last_verified_map(int, int);
 
 create or replace function ems.fn_modbus_last_verified_map(
   p_site_id int,
-  p_asset_id int
+  p_asset_id int,
+  p_asset_type text default 'inverter'
 )
 returns jsonb
 language sql
@@ -18,7 +23,10 @@ as $fn$
       v.value_verified
     from ems.vw_modbus_last_verified v
     where v.site_id = p_site_id
-      and v.asset_type = 'inverter'
+      and v.asset_type = p_asset_type
       and v.asset_id = p_asset_id
   ) t;
 $fn$;
+
+comment on function ems.fn_modbus_last_verified_map is
+'Mapa register -> poslední verified hodnota z modbus_command pro dané zařízení (site, asset_type, asset_id). Slouží k drop-unchanged v control exporteru.';