Merge pull request 'refactor-control-monolith' (#2) from refactor-control-monolith into main

Reviewed-on: #2

backend/services/control/__init__.py

@@ -1,3 +1,3 @@
-"""Deye / Modbus control export (monolith v exporter_monolith.py – postupný split)."""
+"""Deye / Modbus control export modules."""
 
 from .exporter_monolith import *  # noqa: F401,F403

backend/services/control/deye_helpers.py

@@ -0,0 +1,236 @@
+"""Čisté Deye konstanty a helpery pro control export."""
+
+from __future__ import annotations
+
+from datetime import datetime, timedelta, timezone
+from zoneinfo import ZoneInfo
+
+from services.control.models import InverterConfig
+
+PRAGUE_TZ = ZoneInfo("Europe/Prague")
+
+# Hodiny Deye 62-64: po zápisu sekundy na zařízení dál běží, verify musí být toleranční.
+DEYE_CLOCK_VERIFY_MAX_DELTA_SEC = 120
+# Řidší zápis: bez zápisu, pokud čas na invertoru neodbočí od Prahy víc než o tolik sekund.
+DEYE_CLOCK_DRIFT_OK_SEC = 60
+# A zároveň neuplynul tento interval od posledního syncu / potvrzení driftu.
+DEYE_CLOCK_RESYNC_INTERVAL_HOURS = 24
+
+# Deye LV baterie: převod výkon -> proud pro registry 108/109.
+BATT_VOLTAGE_V = 51.2
+
+# Reg 143 ve SELL: min(|grid_setpoint_w|, ...) nesmí klesnout pod tuto podlahu (W).
+REG143_SELL_CAP_MIN_W = 200
+
+# Reg 178 - bitové pole: bity 4-5 (peak shaving switch) a bity 0-1 (MI export cutoff).
+REG178_SELL = 0b00100000
+REG178_PASSIVE = 0b00110000
+REG178_VERIFY_MASK = 0x0030
+REG178_MI_EXPORT_MASK = 0x0003
+REG178_MI_EXPORT_DISABLE = 0b10
+REG178_MI_EXPORT_ENABLE = 0b11
+REG178_VERIFY_MASK_COMBINED = REG178_VERIFY_MASK | REG178_MI_EXPORT_MASK
+
+DEYE_CRITICAL_REGS_SELF_SUSTAIN = frozenset({108, 109, 142, 143, 145})
+DEYE_TOU_POWER_REGS = frozenset(range(154, 160))
+DEYE_LV_BATTERY_MAX_CHARGE_DISCHARGE_A = 350
+
+# Neaktivní TOU bloky (3-6): Deye často 23:59 (2359) neuloží, 23:55 je stabilní.
+DEYE_TOU_INACTIVE_HHMM = 2355
+
+_DEYE_INACTIVE_TOU_REGISTERS: frozenset[int] = frozenset(
+    [
+        150,
+        151,
+        152,
+        153,
+        156,
+        157,
+        158,
+        159,
+        168,
+        169,
+        170,
+        171,
+        174,
+        175,
+        176,
+        177,
+    ]
+)
+
+DEYE_CLOCK_REGS: frozenset[int] = frozenset({62, 63, 64})
+
+DEYE_REGISTER_NAMES: dict[int, str] = {
+    108: "max_charge_a (max nabíjecí proud baterie)",
+    109: "max_discharge_a (max vybíjecí proud baterie)",
+    141: "energy_mode (0, EMS nemění)",
+    142: "limit_control (0=selling first, 1=zero export to load, 2=zero export to CT)",
+    143: "export_limit_w (max export do sítě)",
+    145: "solar_sell (0=disabled, 1=enabled)",
+    340: "max_solar_power_w (strop DC PV A v W; součet nominal_power_wp řiditelných polí)",
+    178: "control_board_special_1 (bits0-1: MI export cutoff disable=2 enable=3; bits4-5 peak shaving 32/48)",
+    148: "time_point_1_time",
+    149: "time_point_2_time",
+    154: "time_point_1_power_w",
+    155: "time_point_2_power_w",
+    166: "time_point_1_soc_min_pct",
+    167: "time_point_2_soc_min_pct",
+    172: "time_point_1_grid_charge",
+    173: "time_point_2_grid_charge",
+    62: "system_time_year_month",
+    63: "system_time_day_hour",
+    64: "system_time_min_sec",
+}
+for _tp_i in range(6):
+    _n = _tp_i + 1
+    DEYE_REGISTER_NAMES.setdefault(148 + _tp_i, f"time_point_{_n}_time")
+    DEYE_REGISTER_NAMES.setdefault(154 + _tp_i, f"time_point_{_n}_power_w")
+    DEYE_REGISTER_NAMES.setdefault(166 + _tp_i, f"time_point_{_n}_soc_min_pct")
+    DEYE_REGISTER_NAMES.setdefault(172 + _tp_i, f"time_point_{_n}_grid_charge")
+
+
+def _deye_reg178_verify_match(expected_i: int, actual_i: int) -> bool:
+    return (int(expected_i) & REG178_VERIFY_MASK_COMBINED) == (
+        int(actual_i) & REG178_VERIFY_MASK_COMBINED
+    )
+
+
+def deye_reg_triggers_self_sustain_after_verify_exhaust(reg: int) -> bool:
+    """True = po 3x mismatch přepnout lokalitu do SELF_SUSTAIN (kritický registr)."""
+    return int(reg) in DEYE_CRITICAL_REGS_SELF_SUSTAIN
+
+
+def _deye_tou_power_verify_match(
+    expected_i: int, actual_i: int, inv: InverterConfig
+) -> bool:
+    """Firmware často clampne TOU power W na max z reg. 108/109 x 51.2 V."""
+    if int(actual_i) == int(expected_i):
+        return True
+    max_w_charge = int(inv.max_charge_a * BATT_VOLTAGE_V)
+    max_w_discharge = int(inv.max_discharge_a * BATT_VOLTAGE_V)
+    a = int(actual_i)
+    return a == max_w_charge or a == max_w_discharge
+
+
+def _deye_reg178_verify_with_double_read(
+    expected_i: int, actual_first: int, actual_second: int | None
+) -> tuple[bool, int]:
+    """
+    Vrátí (shoda, hodnota_pro_journal).
+    Druhé čtení použít jen když první neprojde maskou (RS485 / glitch).
+    """
+    if _deye_reg178_verify_match(expected_i, actual_first):
+        return True, actual_first
+    if actual_second is not None and _deye_reg178_verify_match(expected_i, actual_second):
+        return True, int(actual_second)
+    return False, actual_first
+
+
+def watts_to_amps(power_w: int | None, phases: int = 3, voltage: int = 230) -> int:
+    if not power_w or power_w <= 0:
+        return 0
+    return min(32, max(0, int(power_w / (phases * voltage))))
+
+
+def battery_watts_to_amps(power_w: int, max_amps: int) -> int:
+    """Proud z |výkonu| baterie; max_amps z DB."""
+    derived = int(abs(power_w) / BATT_VOLTAGE_V)
+    return min(max(0, max_amps), max(0, derived))
+
+
+def current_slot_hhmm() -> int:
+    """Začátek probíhajícího 15min slotu v Europe/Prague, formát HHMM."""
+    now = datetime.now(PRAGUE_TZ)
+    slot_min = (now.minute // 15) * 15
+    return now.hour * 100 + slot_min
+
+
+def next_slot_hhmm() -> int:
+    """Začátek příštího 15min slotu v Europe/Prague, formát HHMM."""
+    now = datetime.now(PRAGUE_TZ)
+    minutes = now.minute
+    slot_minutes = ((minutes // 15) + 1) * 15
+    if slot_minutes >= 60:
+        next_hour = (now.hour + 1) % 24
+        next_min = 0
+    else:
+        next_hour = now.hour
+        next_min = slot_minutes
+    return next_hour * 100 + next_min
+
+
+def compute_pv_a_reg340_max_solar_w(cap_w: int, forecast_w: int, curtail_w: int) -> int:
+    """Hodnota pro Deye reg 340 (max solar power, W) z capu a plánovaného curtailmentu pole A."""
+    if curtail_w <= 0:
+        return int(cap_w)
+    return max(0, min(int(cap_w), int(forecast_w) - int(curtail_w)))
+
+
+def _prague_minute_start_utc() -> datetime:
+    """UTC okamžik odpovídající začátku aktuální kalendářní minuty v Europe/Prague."""
+    p = datetime.now(PRAGUE_TZ).replace(second=0, microsecond=0)
+    return p.astimezone(timezone.utc)
+
+
+def _deye_registers_to_prague_datetime(r62: int, r63: int, r64: int) -> datetime | None:
+    """Dekódování reg 62-64 (Deye system time v Europe/Prague)."""
+    try:
+        year = (int(r62) >> 8) + 2000
+        month = int(r62) & 0xFF
+        day = int(r63) >> 8
+        hour = int(r63) & 0xFF
+        minute = int(r64) >> 8
+        second = int(r64) & 0xFF
+        if not (1 <= month <= 12 and 1 <= day <= 31 and 0 <= hour <= 23):
+            return None
+        if not (0 <= minute <= 59 and 0 <= second <= 59):
+            return None
+        return datetime(year, month, day, hour, minute, second, tzinfo=PRAGUE_TZ)
+    except (ValueError, OverflowError):
+        return None
+
+
+def _deye_clock_registers_verify_match(
+    w62: int,
+    w63: int,
+    w64: int,
+    a62: int,
+    a63: int,
+    a64: int,
+) -> bool:
+    w_dt = _deye_registers_to_prague_datetime(w62, w63, w64)
+    a_dt = _deye_registers_to_prague_datetime(a62, a63, a64)
+    if w_dt is None or a_dt is None:
+        return False
+    return abs((a_dt - w_dt).total_seconds()) <= DEYE_CLOCK_VERIFY_MAX_DELTA_SEC
+
+
+def _deye_should_skip_time_sync_after_read(
+    inv: InverterConfig,
+    r62: int,
+    r63: int,
+    r64: int,
+) -> bool:
+    """
+    True = nezařazovat zápis 62-64: drift je malý a od posledního úspěšného zápisu
+    nebo tolerančního ověření neuplynulo 24h.
+    """
+    dev = _deye_registers_to_prague_datetime(r62, r63, r64)
+    if dev is None:
+        return False
+    wall = datetime.now(PRAGUE_TZ)
+    drift = abs((wall - dev).total_seconds())
+    if drift > DEYE_CLOCK_DRIFT_OK_SEC:
+        return False
+    last_write = inv.deye_last_system_time_sync_at
+    if last_write is None:
+        return False
+    if last_write.tzinfo is None:
+        last_write = last_write.replace(tzinfo=timezone.utc)
+    else:
+        last_write = last_write.astimezone(timezone.utc)
+    age = datetime.now(timezone.utc) - last_write
+    if age >= timedelta(hours=DEYE_CLOCK_RESYNC_INTERVAL_HOURS):
+        return False
+    return True

backend/services/control/inverter.py

@@ -0,0 +1,375 @@
+"""Deye inverter writer and live register reader."""
+
+from __future__ import annotations
+
+import logging
+from datetime import datetime, timezone
+from typing import Any
+
+import asyncpg
+
+from services.control.deye_helpers import (
+    BATT_VOLTAGE_V,
+    DEYE_CLOCK_DRIFT_OK_SEC,
+    DEYE_CLOCK_REGS,
+    DEYE_CLOCK_RESYNC_INTERVAL_HOURS,
+    DEYE_TOU_INACTIVE_HHMM,
+    PRAGUE_TZ,
+    REG143_SELL_CAP_MIN_W,
+    REG178_MI_EXPORT_DISABLE,
+    REG178_MI_EXPORT_ENABLE,
+    REG178_MI_EXPORT_MASK,
+    REG178_PASSIVE,
+    REG178_SELL,
+    REG178_VERIFY_MASK,
+    REG178_VERIFY_MASK_COMBINED,
+    _DEYE_INACTIVE_TOU_REGISTERS,
+    _deye_should_skip_time_sync_after_read,
+    _prague_minute_start_utc,
+    battery_watts_to_amps,
+    current_slot_hhmm,
+    next_slot_hhmm,
+)
+from services.control.modbus_journal import (
+    _drop_registers_matching_last_verified,
+    _fetch_last_verified_inverter_registers,
+    create_modbus_commands,
+    execute_modbus_commands,
+)
+from services.control.models import ControlSetpoints
+from services.control.repository import _get_current_soc, _load_inverter_config
+from services.control.setpoints import (
+    _deye_reg143_export_w,
+    _deye_system_time_register_rows,
+    _deye_time_point_rows,
+    _deye_tou_min_soc_pct,
+    _deye_tou_params,
+    _deye_tou_reserve_soc_pct,
+    _deye_zero_export_amps_for_passive,
+    get_deye_mode,
+)
+from services.modbus_client import get_modbus_client
+
+logger = logging.getLogger(__name__)
+
+
+async def write_inverter_setpoints(
+    site_id: int,
+    setpoints_now: ControlSetpoints,
+    setpoints_next: ControlSetpoints | None,
+    db: asyncpg.Connection,
+    planning_run_id: int | None = None,
+) -> str:
+    inv = await _load_inverter_config(site_id, db)
+    if inv is None:
+        return "FAIL inverter: no controllable Modbus endpoint"
+
+    unit_id = int(inv.unit_id if inv.unit_id is not None else 1)
+    raw_bat = setpoints_now.battery_w
+    grid_w = int(setpoints_now.grid_setpoint_w or 0)
+    no_export = inv.no_export
+    export_lim = _deye_reg143_export_w(no_export, inv.max_export_power_w)
+    max_batt_w_discharge = int(inv.max_discharge_a * BATT_VOLTAGE_V)
+    tp_discharge_w = 0 if setpoints_now.lock_battery else max_batt_w_discharge
+    tou_min_pct = _deye_tou_min_soc_pct(inv)
+    tou_reserve_pct = _deye_tou_reserve_soc_pct(inv)
+
+    try:
+        soc_telemetry = await _get_current_soc(site_id, db)
+        deye_mode = get_deye_mode(setpoints_now)
+
+        bat_w = int(raw_bat) if raw_bat is not None else 0
+        if setpoints_now.lock_battery:
+            charge_a = 0
+            discharge_a = 0
+        elif deye_mode == "CHARGE":
+            charge_a = battery_watts_to_amps(bat_w, inv.max_charge_a)
+            discharge_a = 0
+        elif deye_mode == "SELL":
+            charge_a = 0
+            discharge_a = int(inv.max_discharge_a)
+        elif setpoints_now.self_sustain_local_use:
+            charge_a = int(inv.max_charge_a)
+            discharge_a = int(inv.max_discharge_a)
+        else:
+            charge_a, discharge_a = _deye_zero_export_amps_for_passive(
+                grid_w,
+                bat_w,
+                int(inv.max_charge_a),
+                int(inv.max_discharge_a),
+            )
+
+        zero_exp_mode = int(inv.deye_zero_export_mode or 1)
+        selling_mode = 0 if deye_mode == "SELL" else zero_exp_mode
+        solar_sell = 0 if (setpoints_now.export_ban and deye_mode != "SELL") else 1
+        export_limit = export_lim
+        if deye_mode == "SELL" and grid_w < 0:
+            export_limit = min(export_lim, max(REG143_SELL_CAP_MIN_W, abs(grid_w)))
+        reg178_val = REG178_SELL if deye_mode == "SELL" else REG178_PASSIVE
+
+        logger.info(
+            f"[control] site={site_id} fyzický režim Deye: {deye_mode} | "
+            f"battery_w={raw_bat!r} grid_w={grid_w} | "
+            f"charge_a={charge_a} discharge_a={discharge_a} | "
+            f"reg142={selling_mode} reg145={solar_sell} reg143={export_limit}W reg178={reg178_val}"
+        )
+
+        now_cet, time_rows = _deye_system_time_register_rows()
+        skip_time = False
+        try:
+            mb_clock = await get_modbus_client(inv.host, inv.port)
+            tvals = await mb_clock.read_holding_registers(
+                62, 3, int(inv.unit_id if inv.unit_id is not None else 1)
+            )
+            if len(tvals) == 3:
+                skip_time = _deye_should_skip_time_sync_after_read(
+                    inv, int(tvals[0]), int(tvals[1]), int(tvals[2])
+                )
+            else:
+                logger.warning(
+                    "Deye clock read: expected 3 registers, got %s; will sync 62-64",
+                    len(tvals),
+                )
+        except Exception as e:
+            logger.warning("Deye clock read failed (will sync 62-64): %s", e)
+
+        if skip_time:
+            logger.info(
+                "Deye clock 62-64 skipped (drift <= %ss, last sync < %sh ago): %s CET",
+                DEYE_CLOCK_DRIFT_OK_SEC,
+                DEYE_CLOCK_RESYNC_INTERVAL_HOURS,
+                now_cet.strftime("%Y-%m-%d %H:%M:%S"),
+            )
+        else:
+            logger.info("Deye time will sync: %s CET", now_cet.strftime("%Y-%m-%d %H:%M:%S"))
+
+        registers: list[tuple[int, str, int]] = [] if skip_time else list(time_rows)
+
+        sp_tp2 = setpoints_next if setpoints_next is not None else setpoints_now
+        hh_cur = current_slot_hhmm()
+        hh_nxt = next_slot_hhmm()
+        p1, s1, g1 = _deye_tou_params(setpoints_now, inv)
+        p2, s2, g2 = _deye_tou_params(sp_tp2, inv)
+        registers.extend(_deye_time_point_rows(0, hh_cur, p1, s1, g1))
+        registers.extend(_deye_time_point_rows(1, hh_nxt, p2, s2, g2))
+
+        prague_date = datetime.now(PRAGUE_TZ).date()
+        inactive_sig = (
+            f"{DEYE_TOU_INACTIVE_HHMM}|{tou_min_pct}|{tou_reserve_pct}|{tp_discharge_w}"
+        )
+        need_inactive_tou = (
+            inv.deye_last_tou_inactive_write_prague_date != prague_date
+            or inv.deye_tou_inactive_signature != inactive_sig
+        )
+        if need_inactive_tou:
+            for idx in range(2, 6):
+                registers.extend(
+                    _deye_time_point_rows(
+                        idx, DEYE_TOU_INACTIVE_HHMM, tp_discharge_w, tou_min_pct, False
+                    )
+                )
+        else:
+            logger.debug(
+                "Deye TOU rows 3-6 skipped (already written today, signature unchanged)"
+            )
+
+        registers.extend(
+            [
+                (108, "", charge_a),
+                (109, "", discharge_a),
+                (141, "energy_mode (0)", 0),
+                (142, "limit_control", selling_mode),
+                (143, "", export_limit),
+                (145, "solar_sell", solar_sell),
+            ]
+        )
+
+        if (
+            bool(inv.deye_reg340_pv_a_control_enabled)
+            and int(inv.pv_a_cap_w) > 0
+            and setpoints_now.pv_a_allowed_w is not None
+        ):
+            registers.append((340, "max_solar_power_w", int(setpoints_now.pv_a_allowed_w)))
+
+        try:
+            mb178 = await get_modbus_client(inv.host, inv.port)
+            r178 = await mb178.read_holding_registers(178, 1, unit_id)
+            if not r178 or len(r178) < 1:
+                raise OSError(f"reg178 read returned {len(r178) if r178 is not None else None} values")
+            current_178 = int(r178[0])
+            peak_bits = int(reg178_val) & int(REG178_VERIFY_MASK)
+            if inv.deye_gen_microinverter_cutoff_enabled:
+                want_cutoff = bool(setpoints_now.deye_gen_cutoff_enabled) and deye_mode != "SELL"
+                mi_bits = REG178_MI_EXPORT_ENABLE if want_cutoff else REG178_MI_EXPORT_DISABLE
+            else:
+                mi_bits = int(current_178) & int(REG178_MI_EXPORT_MASK)
+
+            new_178 = (
+                (int(current_178) & ~int(REG178_VERIFY_MASK_COMBINED))
+                | int(peak_bits)
+                | int(mi_bits)
+            )
+            registers.append((178, "control_board_special_1", int(new_178)))
+            logger.info(
+                "[control] %s: reg178 (control_board_special_1) old=%s new=%s peak_bits=0x%04X mi_bits=%s",
+                inv.code,
+                current_178,
+                new_178,
+                int(peak_bits),
+                int(mi_bits),
+            )
+        except Exception as e:
+            logger.warning("[control] %s: reg178 RMW failed (skip reg178 write): %s", inv.code, e)
+
+        logger.info(
+            "[control] %s: deye_mode=%s charge=%sA discharge=%sA "
+            "reg142=%s reg145=%s export=%sW "
+            "tp1=%s tp2=%s soc=%s%% (batt=%r grid=%sW)",
+            inv.code,
+            deye_mode,
+            charge_a,
+            discharge_a,
+            selling_mode,
+            solar_sell,
+            export_limit,
+            hh_cur,
+            hh_nxt,
+            soc_telemetry,
+            raw_bat,
+            grid_w,
+        )
+
+        last_verified = await _fetch_last_verified_inverter_registers(site_id, inv.id, db)
+        registers, skipped_unchanged = _drop_registers_matching_last_verified(
+            registers, last_verified
+        )
+        if skipped_unchanged:
+            logger.info(
+                "[control] %s: skip %s registers (value equals last verified): %s",
+                inv.code,
+                len(skipped_unchanged),
+                skipped_unchanged[:24],
+            )
+        if not registers:
+            logger.info(
+                "[control] %s: all Deye holding regs match last verified, no Modbus write",
+                inv.code,
+            )
+            if need_inactive_tou:
+                await db.execute(
+                    """
+                    UPDATE ems.asset_inverter
+                    SET deye_last_tou_inactive_write_prague_date = $1,
+                        deye_tou_inactive_signature = $2
+                    WHERE id = $3
+                    """,
+                    prague_date,
+                    inactive_sig,
+                    inv.id,
+                )
+            return (
+                f"OK inverter: batt_w={raw_bat!r} (no changes vs last verified Modbus snapshot)"
+            )
+
+        will_write_inactive = any(
+            int(r) in _DEYE_INACTIVE_TOU_REGISTERS for r, _, _ in registers
+        )
+
+        cmd_ids = await create_modbus_commands(
+            site_id,
+            planning_run_id,
+            "inverter",
+            inv.id,
+            inv.code,
+            inv.host,
+            inv.port,
+            inv.unit_id,
+            registers,
+            db,
+            deye_physical_mode=deye_mode,
+        )
+        if not await execute_modbus_commands(cmd_ids, db):
+            return f"FAIL inverter: {inv.code}: Modbus write failed (see modbus_command)"
+        logger.info("[control] Inverter %s journal write OK", inv.code)
+
+        will_write_time = any(int(r) in DEYE_CLOCK_REGS for r, _, _ in registers)
+        if will_write_time:
+            await db.execute(
+                """
+                UPDATE ems.asset_inverter
+                SET deye_last_system_time_sync_minute = $1,
+                    deye_last_system_time_sync_at = now()
+                WHERE id = $2
+                """,
+                _prague_minute_start_utc(),
+                inv.id,
+            )
+
+        if need_inactive_tou or will_write_inactive:
+            await db.execute(
+                """
+                UPDATE ems.asset_inverter
+                SET deye_last_tou_inactive_write_prague_date = $1,
+                    deye_tou_inactive_signature = $2
+                WHERE id = $3
+                """,
+                prague_date,
+                inactive_sig,
+                inv.id,
+            )
+    except Exception as e:
+        return f"FAIL inverter: {inv.code}: {e}"
+
+    return (
+        f"OK inverter: batt_w={raw_bat!r} "
+        f"(time points + FC 0x10: 108/109/141/142/178/143/145/340 dle plánu)"
+    )
+
+
+async def read_deye_registers_live(site_id: int, db: asyncpg.Connection) -> dict[str, Any]:
+    """
+    Živé čtení holding registrů Deye 108, 109, 141-145, 178, 191 a volitelně 340.
+    """
+    inv = await _load_inverter_config(site_id, db)
+    if inv is None:
+        raise ValueError("no controllable Modbus inverter for site")
+
+    uid = int(inv.unit_id)
+    client = await get_modbus_client(inv.host, inv.port)
+    read_at = datetime.now(timezone.utc)
+    try:
+        async with client.batch(uid) as mb:
+            b108 = await mb.read_holding_registers(108, 2)
+            b141 = await mb.read_holding_registers(141, 5)
+            r178 = await mb.read_holding_registers(178, 1)
+            r191 = await mb.read_holding_registers(191, 1)
+            if inv.deye_reg340_pv_a_control_enabled:
+                r340 = await mb.read_holding_registers(340, 1)
+            else:
+                r340 = None
+        r108, r109 = b108[0], b108[1]
+        r141, r142, r143 = b141[0], b141[1], b141[2]
+        r145 = b141[4]
+        r178 = r178[0]
+        r191 = r191[0]
+        r340v = int(r340[0]) if r340 is not None and len(r340) >= 1 else None
+    except Exception:
+        logger.exception("read_deye_registers_live site=%s failed", site_id)
+        raise
+
+    return {
+        "reg108_charge_a": int(r108),
+        "reg109_discharge_a": int(r109),
+        "reg141_energy_mode": int(r141),
+        "reg142_limit_control": int(r142),
+        "reg143_export_limit_w": int(r143),
+        "reg145_solar_sell": int(r145),
+        "reg178_peak_shaving_switch": int(r178),
+        "reg178_control_board_special_1": int(r178),
+        "reg178_mi_export_cutoff_bits": int(r178) & int(REG178_MI_EXPORT_MASK),
+        "reg178_mi_export_cutoff_is_on": (int(r178) & int(REG178_MI_EXPORT_MASK))
+        == int(REG178_MI_EXPORT_ENABLE),
+        "reg191_peak_shaving_w": int(r191),
+        "reg340_max_solar_power_w": r340v,
+        "read_at": read_at.isoformat(),
+    }

backend/services/control/modbus_journal.py

@@ -0,0 +1,243 @@
+"""Modbus command journal helpers pro control export."""
+
+from __future__ import annotations
+
+import asyncio
+import json
+import logging
+from collections import defaultdict
+
+import asyncpg
+
+from services.control.deye_helpers import DEYE_REGISTER_NAMES, _deye_reg178_verify_match
+from services.modbus_client import get_modbus_client
+
+logger = logging.getLogger(__name__)
+
+
+async def _fetch_written_deye_clock_commands(
+    site_id: int,
+    asset_id: int,
+    host: str,
+    port: int,
+    unit_id: int,
+    db: asyncpg.Connection,
+) -> list[asyncpg.Record]:
+    """Všechny řádky journalu 62-64 ve stavu written pro daný invertor/endpoint."""
+    rows = await db.fetch(
+        """
+        SELECT * FROM ems.modbus_command
+        WHERE site_id = $1
+          AND asset_type = 'inverter'
+          AND asset_id = $2
+          AND device_host = $3
+          AND device_port = $4
+          AND device_unit_id = $5
+          AND register IN (62, 63, 64)
+          AND status = 'written'
+        ORDER BY register
+        """,
+        site_id,
+        asset_id,
+        host,
+        port,
+        unit_id,
+    )
+    return list(rows)
+
+
+async def _fetch_last_verified_inverter_registers(
+    site_id: int, inverter_asset_id: int, db: asyncpg.Connection
+) -> dict[int, int]:
+    """
+    Poslední hodnota na zařízení podle journalu (jen status verified).
+    Slouží k přeskočení duplicitního zápisu stejné hodnoty.
+    """
+    raw = await db.fetchval(
+        """
+        select ems.fn_modbus_last_verified_map($1::int, $2::int)
+        """,
+        site_id,
+        inverter_asset_id,
+    )
+    data = raw if isinstance(raw, dict) else json.loads(raw)
+    return {int(k): int(v) for k, v in data.items()}
+
+
+def _drop_registers_matching_last_verified(
+    registers: list[tuple[int, str, int]],
+    last_verified: dict[int, int],
+) -> tuple[list[tuple[int, str, int]], list[int]]:
+    """Vynechá položky s hodnotou shodnou s posledním ověřeným stavem."""
+    out: list[tuple[int, str, int]] = []
+    skipped: list[int] = []
+    for reg, meta, val in registers:
+        lv = last_verified.get(int(reg))
+        if lv is not None:
+            if int(reg) == 178 and _deye_reg178_verify_match(int(val), int(lv)):
+                skipped.append(int(reg))
+                continue
+            if int(lv) == int(val):
+                skipped.append(int(reg))
+                continue
+        out.append((reg, meta, val))
+    return out, skipped
+
+
+async def create_modbus_commands(
+    site_id: int,
+    planning_run_id: int | None,
+    asset_type: str,
+    asset_id: int,
+    asset_code: str,
+    host: str,
+    port: int,
+    unit_id: int,
+    registers: list[tuple[int, str, int]],
+    db: asyncpg.Connection,
+    deye_physical_mode: str | None = None,
+) -> list[int]:
+    """
+    Vytvoří záznamy v modbus_command pro sadu zápisů.
+    Vrátí list command IDs.
+    """
+    ids: list[int] = []
+    for reg, _ignored_name, val in registers:
+        register_name = DEYE_REGISTER_NAMES.get(reg, f"reg_{reg}")
+        cmd_id = await db.fetchval(
+            """
+            INSERT INTO ems.modbus_command
+                (site_id, asset_type, asset_id, asset_code,
+                 device_host, device_port, device_unit_id,
+                 register, register_name, value_to_write,
+                 planning_run_id, status, deye_physical_mode)
+            VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,'pending',$12)
+            RETURNING id
+            """,
+            site_id,
+            asset_type,
+            asset_id,
+            asset_code,
+            host,
+            port,
+            unit_id,
+            reg,
+            register_name,
+            val,
+            planning_run_id,
+            deye_physical_mode,
+        )
+        if cmd_id is not None:
+            ids.append(int(cmd_id))
+    return ids
+
+
+def _modbus_command_contiguous_runs(cmds: list[asyncpg.Record]) -> list[list[asyncpg.Record]]:
+    """Seřadí podle adresy registru a rozdělí na souvislé úseky pro FC 0x10 / FC 3."""
+    if not cmds:
+        return []
+    sorted_cmds = sorted(cmds, key=lambda c: int(c["register"]))
+    runs: list[list[asyncpg.Record]] = []
+    cur: list[asyncpg.Record] = [sorted_cmds[0]]
+    for c in sorted_cmds[1:]:
+        if int(c["register"]) == int(cur[-1]["register"]) + 1:
+            cur.append(c)
+        else:
+            runs.append(cur)
+            cur = [c]
+    runs.append(cur)
+    return runs
+
+
+async def execute_modbus_commands(
+    command_ids: list[int],
+    db: asyncpg.Connection,
+) -> bool:
+    """
+    Zapíše příkazy z modbus_command do zařízení (FC 0x10 po souvislých blocích).
+    Aktualizuje status na 'written' nebo 'failed'.
+    """
+    max_retries = 3
+    retry_delay = 0.5
+
+    rows: list[asyncpg.Record] = []
+    for cmd_id in command_ids:
+        cmd = await db.fetchrow(
+            "SELECT * FROM ems.modbus_command WHERE id=$1", cmd_id
+        )
+        if cmd is not None:
+            rows.append(cmd)
+
+    if not rows:
+        return True
+
+    by_gw: dict[tuple[str, int, int], list[asyncpg.Record]] = defaultdict(list)
+    for cmd in rows:
+        by_gw[
+            (cmd["device_host"], int(cmd["device_port"]), int(cmd["device_unit_id"]))
+        ].append(cmd)
+
+    all_ok = True
+    for (host, port, unit), group in by_gw.items():
+        client = await get_modbus_client(host, port)
+        for run in _modbus_command_contiguous_runs(group):
+            start_reg = int(run[0]["register"])
+            values = [int(c["value_to_write"]) for c in run]
+            for attempt in range(max_retries):
+                try:
+                    await client.write_registers(start_reg, values, unit)
+                    for cmd, val in zip(run, values):
+                        cid = int(cmd["id"])
+                        await db.execute(
+                            """
+                            UPDATE ems.modbus_command
+                            SET status='written', value_written=$1, written_at=now(),
+                                attempt_count=attempt_count+1, error_msg=NULL
+                            WHERE id=$2
+                            """,
+                            val,
+                            cid,
+                        )
+                        logger.info(
+                            "[cmd %s] %s 0x%04X=%s OK batch@%s (attempt %s)",
+                            cid,
+                            cmd["asset_code"],
+                            int(cmd["register"]),
+                            val,
+                            start_reg,
+                            attempt + 1,
+                        )
+                    break
+                except Exception as e:
+                    if attempt < max_retries - 1:
+                        logger.warning(
+                            "Modbus batch write 0x%04X count=%s attempt %s failed: %s, retrying...",
+                            start_reg,
+                            len(values),
+                            attempt + 1,
+                            e,
+                        )
+                        await asyncio.sleep(retry_delay)
+                        await client.force_disconnect()
+                    else:
+                        for cmd in run:
+                            await db.execute(
+                                """
+                                UPDATE ems.modbus_command
+                                SET status='failed', error_msg=$1,
+                                    attempt_count=attempt_count+1
+                                WHERE id=$2
+                                """,
+                                str(e),
+                                int(cmd["id"]),
+                            )
+                        logger.error(
+                            "Modbus batch 0x%04X count=%s all %s attempts failed: %s",
+                            start_reg,
+                            len(values),
+                            max_retries,
+                            e,
+                        )
+                        all_ok = False
+
+    return all_ok

backend/services/control/models.py

@@ -0,0 +1,73 @@
+"""Datové modely pro control export."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+from datetime import date, datetime
+
+
+@dataclass
+class InverterConfig:
+    id: int
+    code: str
+    host: str
+    port: int
+    unit_id: int
+    max_export_power_w: int | None
+    max_import_power_w: int | None
+    no_export: bool
+    max_battery_charge_w: int | None
+    max_battery_discharge_w: int | None
+    min_soc_percent: int | None
+    reserve_soc_percent: int | None
+    max_soc_percent: int | None
+    usable_capacity_wh: int | None
+    max_charge_a: int
+    max_discharge_a: int
+    deye_last_system_time_sync_minute: datetime | None = None
+    deye_last_system_time_sync_at: datetime | None = None
+    deye_last_tou_inactive_write_prague_date: date | None = None
+    deye_tou_inactive_signature: str | None = None
+    deye_zero_export_mode: int = 1
+    deye_gen_microinverter_cutoff_enabled: bool = False
+    #: Součet nominal_power_wp controllable PV na invertoru; 0 = EMS nezapisuje reg 340.
+    pv_a_cap_w: int = 0
+    #: True = EMS smí řídit Deye reg 340 (max solar power); z SQL `fn_site_has_active_green_bonus_pv(site_id)`.
+    deye_reg340_pv_a_control_enabled: bool = False
+
+
+@dataclass
+class ControlSetpoints:
+    battery_w: int | None
+    grid_export_limit: int
+    ev1_current_a: int
+    ev2_current_a: int
+    heat_pump_enable: bool
+    grid_setpoint_w: int
+    ev1_power_w: int
+    ev2_power_w: int
+    target_soc_pct: int | None = None
+    #: Explicitní fyzický režim z plánu (PASSIVE/SELL/CHARGE).
+    deye_physical_mode: str | None = None
+    #: True = zákaz exportu (BLOCK_EXPORT) pro daný slot.
+    export_ban: bool = False
+    #: True = odpojit GEN port (MI export cutoff) v tomto slotu dle plánu (reg 178 bits0-1).
+    deye_gen_cutoff_enabled: bool = False
+    #: Efektivní vykupní cena slotu (Kč/kWh z plánu).
+    effective_sell_price_czk_kwh: float | None = None
+    #: True = reg 108/109 na 0 (PRESERVE - Deye baterii nepoužívá).
+    lock_battery: bool = False
+    #: Režim SELF_SUSTAIN.
+    self_sustain_local_use: bool = False
+    #: Deye reg 340 (max solar power, W). None = EMS reg 340 v tomto ticku neřeší.
+    pv_a_allowed_w: int | None = None
+
+
+@dataclass
+class OperatingModeInfo:
+    mode_code: str
+    battery_mode: str
+    grid_mode: str
+    ev_enabled: bool
+    heat_pump_enabled_def: bool
+    loxone_mode_value: int

backend/services/control/orchestrator.py

@@ -0,0 +1,156 @@
+"""Top-level control export orchestration."""
+
+from __future__ import annotations
+
+import logging
+
+import asyncpg
+
+from services.control.inverter import write_inverter_setpoints
+from services.control.models import ControlSetpoints
+from services.control.outputs import (
+    send_loxone_setpoints,
+    write_ev_setpoints,
+    write_heat_pump_setpoint,
+)
+from services.control.repository import (
+    _fetch_max_charge_power_w,
+    _fetch_operating_mode,
+    _fetch_plan_row_for_slot_offset,
+    _load_inverter_config,
+)
+from services.control.setpoints import _apply_price_failsafe_guard, _build_setpoints
+from services.signal_service import enqueue_site_signals
+
+logger = logging.getLogger(__name__)
+
+
+async def export_setpoints(site_id: int, db: asyncpg.Connection) -> None:
+    mode = await _fetch_operating_mode(site_id, db)
+    if mode is None:
+        logger.warning("control export site=%s: no operating mode row", site_id)
+        return
+
+    if mode.mode_code == "MANUAL":
+        logger.info("control export site=%s: MANUAL, skip writes", site_id)
+        return
+
+    try:
+        inv_for_pv = await _load_inverter_config(site_id, db)
+        cap_pv = int(inv_for_pv.pv_a_cap_w) if inv_for_pv is not None else 0
+        reg340_en = (
+            bool(inv_for_pv.deye_reg340_pv_a_control_enabled)
+            if inv_for_pv is not None
+            else False
+        )
+        pi_now = await _fetch_plan_row_for_slot_offset(site_id, db, 0)
+        pi_next = await _fetch_plan_row_for_slot_offset(site_id, db, 1)
+        sp_now = _build_setpoints(
+            mode,
+            pi_now,
+            pv_a_cap_w=cap_pv,
+            reg340_pv_a_control_enabled=reg340_en,
+        )
+        sp_next = _build_setpoints(
+            mode,
+            pi_next,
+            pv_a_cap_w=cap_pv,
+            reg340_pv_a_control_enabled=reg340_en,
+        )
+
+        if mode.mode_code == "AUTO" and sp_now is None:
+            if pi_now is None:
+                logger.warning(
+                    "control export site=%s: AUTO but no planning_interval for current slot, skip",
+                    site_id,
+                )
+            return
+
+        if sp_now is None:
+            logger.warning(
+                "control export site=%s: no setpoints for mode %s, skip",
+                site_id,
+                mode.mode_code,
+            )
+            return
+
+        if mode.mode_code == "CHARGE_CHEAP":
+            max_ch = await _fetch_max_charge_power_w(site_id, db)
+            pw = max(1, int(max_ch))
+            sp_now = ControlSetpoints(
+                battery_w=pw,
+                grid_export_limit=0,
+                ev1_current_a=0,
+                ev2_current_a=0,
+                heat_pump_enable=False,
+                grid_setpoint_w=pw,
+                ev1_power_w=0,
+                ev2_power_w=0,
+                target_soc_pct=None,
+                effective_sell_price_czk_kwh=None,
+            )
+            sp_next = sp_now
+        else:
+            sp_now = _apply_price_failsafe_guard(site_id, mode, pi_now, sp_now)
+            if sp_next is not None:
+                sp_next = _apply_price_failsafe_guard(site_id, mode, pi_next, sp_next)
+
+        planning_run_id = await db.fetchval(
+            """
+            SELECT id FROM ems.planning_run
+            WHERE site_id = $1 AND status = 'active'
+            ORDER BY created_at DESC
+            LIMIT 1
+            """,
+            site_id,
+        )
+        if planning_run_id is not None:
+            planning_run_id = int(planning_run_id)
+
+        try:
+            inv_res = await write_inverter_setpoints(
+                site_id, sp_now, sp_next, db, planning_run_id=planning_run_id
+            )
+        except Exception as e:
+            logger.error("inverter write failed: %s", e)
+            inv_res = f"FAIL inverter: {e}"
+
+        try:
+            ev_res = await write_ev_setpoints(site_id, sp_now, db)
+        except Exception as e:
+            logger.error("ev write failed: %s", e)
+            ev_res = f"FAIL ev: {e}"
+
+        try:
+            hp_res = await write_heat_pump_setpoint(site_id, sp_now, db)
+        except Exception as e:
+            logger.error("hp write failed: %s", e)
+            hp_res = f"FAIL heat pump: {e}"
+
+        try:
+            lox_res = await send_loxone_setpoints(site_id, sp_now, mode, db)
+        except Exception as e:
+            logger.error("loxone write failed: %s", e)
+            lox_res = f"FAIL Loxone: {e}"
+
+        results = list(
+            zip(
+                ("inverter", "ev", "heat_pump", "loxone"),
+                (inv_res, ev_res, hp_res, lox_res),
+            )
+        )
+
+        for name, res in results:
+            if isinstance(res, Exception):
+                logger.error("control export site=%s %s: FAIL %s", site_id, name, res)
+            elif isinstance(res, str) and res.startswith("FAIL"):
+                logger.error("control export site=%s %s: %s", site_id, name, res)
+            else:
+                logger.info("control export site=%s %s: %s", site_id, name, res)
+    finally:
+        try:
+            await enqueue_site_signals(site_id, db)
+        except Exception as e:
+            logger.warning(
+                "control export site=%s: signal enqueue failed: %s", site_id, e
+            )

backend/services/control/outputs.py

@@ -0,0 +1,149 @@
+"""Non-Deye output writers for control export."""
+
+from __future__ import annotations
+
+import logging
+import os
+
+import asyncpg
+import httpx
+
+from app.config import get_settings
+from services.control.models import ControlSetpoints, OperatingModeInfo
+
+logger = logging.getLogger(__name__)
+
+
+def _current_limit_for_charger(charger_code: str, sp: ControlSetpoints) -> int:
+    c = (charger_code or "").strip().lower()
+    if c == "ev-charger-1":
+        a = sp.ev1_current_a
+    elif c == "ev-charger-2":
+        a = sp.ev2_current_a
+    elif c.endswith("-1") or c == "ev1":
+        a = sp.ev1_current_a
+    elif c.endswith("-2") or c == "ev2":
+        a = sp.ev2_current_a
+    else:
+        a = 0
+    if a < 6:
+        a = 0
+    return a
+
+
+async def write_ev_setpoints(
+    site_id: int, setpoints: ControlSetpoints, db: asyncpg.Connection
+) -> str:
+    rows = await db.fetch(
+        """
+        SELECT 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
+          AND ec.schedulable = true
+          AND se.enabled = true
+          AND se.endpoint_type = 'modbus_tcp'
+        ORDER BY ec.code
+        """,
+        site_id,
+    )
+    if not rows:
+        return "OK EV: no schedulable chargers"
+
+    for row in rows:
+        code = row["code"]
+        current_a = _current_limit_for_charger(code, setpoints)
+        logger.info(
+            "EV setpoint [%s]: %sA (TODO: Modbus registers)",
+            code,
+            current_a,
+        )
+    return f"OK EV: logged {len(rows)} charger(s) (Modbus TODO)"
+
+
+async def write_heat_pump_setpoint(
+    site_id: int, setpoints: ControlSetpoints, db: asyncpg.Connection
+) -> str:
+    rows = await db.fetch(
+        """
+        SELECT hp.code, se.host, se.port, se.unit_id
+        FROM ems.asset_heat_pump hp
+        JOIN ems.site_endpoint se ON se.id = hp.endpoint_id
+        WHERE hp.site_id = $1
+          AND hp.schedulable = true
+          AND se.enabled = true
+          AND se.endpoint_type = 'modbus_tcp'
+        """,
+        site_id,
+    )
+    if not rows:
+        return "OK heat pump: no schedulable unit"
+    for row in rows:
+        logger.info(
+            "HP setpoint [%s]: enable=%s (TODO: Modbus registers)",
+            row["code"],
+            setpoints.heat_pump_enable,
+        )
+    return "OK heat pump: logged (Modbus TODO)"
+
+
+async def send_loxone_setpoints(
+    site_id: int,
+    setpoints: ControlSetpoints,
+    mode: OperatingModeInfo,
+    db: asyncpg.Connection,
+) -> str:
+    endpoint = await db.fetchrow(
+        """
+        SELECT host, port, protocol
+        FROM ems.site_endpoint
+        WHERE site_id = $1 AND endpoint_type = 'loxone_http' AND enabled = true
+        ORDER BY id
+        LIMIT 1
+        """,
+        site_id,
+    )
+    if not endpoint:
+        return "OK Loxone: no endpoint, skipped"
+
+    proto = (endpoint["protocol"] or "http").lower()
+    if proto not in ("http", "https"):
+        proto = "http"
+    host = endpoint["host"]
+    port = int(endpoint["port"] or (443 if proto == "https" else 80))
+    base = f"{proto}://{host}:{port}/dev/sps/io"
+
+    settings = get_settings()
+    user = settings.loxone_user or os.getenv("LOXONE_USER") or ""
+    password = settings.loxone_password or os.getenv("LOXONE_PASSWORD") or ""
+    auth = (user, password) if user else None
+
+    batt_display = 0 if setpoints.battery_w is None else int(setpoints.battery_w)
+
+    paths: list[tuple[str, int]] = [
+        (f"{base}/EMS_Mode/{mode.loxone_mode_value}", mode.loxone_mode_value),
+        (f"{base}/EMS_Battery_Setpoint_W/{batt_display}", batt_display),
+        (f"{base}/EMS_Grid_Setpoint_W/{setpoints.grid_setpoint_w}", setpoints.grid_setpoint_w),
+        (f"{base}/EMS_EV1_Power_W/{setpoints.ev1_power_w}", setpoints.ev1_power_w),
+        (f"{base}/EMS_EV2_Power_W/{setpoints.ev2_power_w}", setpoints.ev2_power_w),
+        (
+            f"{base}/EMS_HeatPump_Enable/{1 if setpoints.heat_pump_enable else 0}",
+            1 if setpoints.heat_pump_enable else 0,
+        ),
+    ]
+
+    errs: list[str] = []
+    try:
+        async with httpx.AsyncClient(timeout=5.0) as client:
+            for url, _ in paths:
+                try:
+                    r = await client.get(url, auth=auth)
+                    r.raise_for_status()
+                except Exception as e:
+                    errs.append(f"{url!s}: {e}")
+    except Exception as e:
+        return f"FAIL Loxone: client {e}"
+
+    if errs:
+        return "FAIL Loxone: " + "; ".join(errs[:3])
+    return "OK Loxone: all virtual inputs updated"

backend/services/control/repository.py

@@ -0,0 +1,215 @@
+"""DB načítání pro control export."""
+
+from __future__ import annotations
+
+import json
+from datetime import datetime, timezone
+
+import asyncpg
+
+from services.control.deye_helpers import DEYE_LV_BATTERY_MAX_CHARGE_DISCHARGE_A
+from services.control.models import InverterConfig, OperatingModeInfo
+from services.control.setpoints import _DictRecord
+
+
+async def _fetch_operating_mode(
+    site_id: int, db: asyncpg.Connection
+) -> OperatingModeInfo | None:
+    sql = """
+        SELECT som.mode_code, omd.battery_mode, omd.grid_mode,
+               omd.ev_enabled, omd.heat_pump_enabled, omd.loxone_mode_value,
+               som.valid_until
+        FROM ems.site_operating_mode som
+        JOIN ems.operating_mode_def omd ON omd.code = som.mode_code
+        WHERE som.site_id = $1
+        """
+    row = await db.fetchrow(sql, site_id)
+    if row is None:
+        return None
+    vu = row["valid_until"]
+    if vu is not None:
+        now_utc = datetime.now(timezone.utc)
+        if vu.tzinfo is None:
+            vu = vu.replace(tzinfo=timezone.utc)
+        if vu <= now_utc:
+            exp_rows = await db.fetch("SELECT * FROM ems.fn_expire_modes()")
+            from services.notification_service import notify_operating_mode_changed
+
+            for er in exp_rows:
+                await notify_operating_mode_changed(
+                    str(er["site_code"]),
+                    str(er["old_mode"]),
+                    str(er["new_mode"]),
+                    "system:expiry",
+                    "Automatické vypršení dočasného režimu",
+                )
+            row = await db.fetchrow(sql, site_id)
+            if row is None:
+                return None
+    return OperatingModeInfo(
+        mode_code=row["mode_code"],
+        battery_mode=row["battery_mode"],
+        grid_mode=row["grid_mode"],
+        ev_enabled=bool(row["ev_enabled"]),
+        heat_pump_enabled_def=bool(row["heat_pump_enabled"]),
+        loxone_mode_value=int(row["loxone_mode_value"]),
+    )
+
+
+async def _get_current_soc(site_id: int, db: asyncpg.Connection) -> int:
+    soc = await db.fetchval(
+        """
+        SELECT battery_soc_percent
+        FROM ems.telemetry_inverter
+        WHERE site_id = $1 AND battery_soc_percent IS NOT NULL
+        ORDER BY measured_at DESC
+        LIMIT 1
+        """,
+        site_id,
+    )
+    return int(soc) if soc is not None else 50
+
+
+async def _load_inverter_config(
+    site_id: int, db: asyncpg.Connection
+) -> InverterConfig | None:
+    row = await db.fetchrow(
+        """
+        SELECT
+            ai.id, ai.code,
+            coalesce(ems.fn_inverter_pv_a_max_w(ai.id), 0) AS pv_a_cap_w,
+            se.host, se.port, se.unit_id,
+            sgc.max_export_power_w,
+            sgc.max_import_power_w,
+            sgc.no_export,
+            ai.max_battery_charge_w,
+            ai.max_battery_discharge_w,
+            ab.min_soc_percent,
+            ab.reserve_soc_percent,
+            ab.max_soc_percent,
+            ab.usable_capacity_wh,
+            ai.deye_last_system_time_sync_minute,
+            ai.deye_last_system_time_sync_at,
+            ai.deye_last_tou_inactive_write_prague_date,
+            ai.deye_tou_inactive_signature,
+            COALESCE(ai.deye_zero_export_mode, 1) AS deye_zero_export_mode,
+            COALESCE(ai.deye_gen_microinverter_cutoff_enabled, false) AS deye_gen_microinverter_cutoff_enabled,
+            coalesce(ems.fn_site_has_active_green_bonus_pv(ai.site_id), false)
+              AS deye_reg340_pv_a_control_enabled,
+            COALESCE(
+                ai.deye_register_max_charge_a,
+                FLOOR(
+                    LEAST(
+                        COALESCE(ab.bms_max_charge_w, ai.max_battery_charge_w),
+                        ai.max_battery_charge_w
+                    )::numeric / 51.2
+                )::int
+            ) AS max_charge_a,
+            COALESCE(
+                ai.deye_register_max_discharge_a,
+                FLOOR(
+                    LEAST(
+                        COALESCE(ab.bms_max_discharge_w, ai.max_battery_discharge_w),
+                        ai.max_battery_discharge_w
+                    )::numeric / 51.2
+                )::int
+            ) AS max_discharge_a
+        FROM ems.asset_inverter ai
+        JOIN ems.site_endpoint se ON se.id = ai.endpoint_id
+        JOIN ems.asset_battery ab ON ab.inverter_id = ai.id
+        LEFT JOIN ems.site_grid_connection sgc ON sgc.site_id = ai.site_id
+        WHERE ai.site_id = $1
+          AND ai.active = true
+          AND ai.controllable = true
+          AND se.enabled = true
+          AND se.endpoint_type = 'modbus_tcp'
+        ORDER BY ai.id
+        LIMIT 1
+        """,
+        site_id,
+    )
+    if row is None:
+        return None
+    mc = row["max_charge_a"]
+    md = row["max_discharge_a"]
+    max_charge_a = int(mc) if mc is not None else 0
+    max_discharge_a = int(md) if md is not None else 0
+    max_charge_a = min(max_charge_a, DEYE_LV_BATTERY_MAX_CHARGE_DISCHARGE_A)
+    max_discharge_a = min(max_discharge_a, DEYE_LV_BATTERY_MAX_CHARGE_DISCHARGE_A)
+    port = int(row["port"] or 502)
+    uid = int(row["unit_id"] if row["unit_id"] is not None else 1)
+    return InverterConfig(
+        id=int(row["id"]),
+        code=row["code"],
+        host=row["host"],
+        port=port,
+        unit_id=uid,
+        max_export_power_w=int(row["max_export_power_w"])
+        if row["max_export_power_w"] is not None
+        else None,
+        max_import_power_w=int(row["max_import_power_w"])
+        if row["max_import_power_w"] is not None
+        else None,
+        no_export=bool(row["no_export"] or False),
+        max_battery_charge_w=int(row["max_battery_charge_w"])
+        if row["max_battery_charge_w"] is not None
+        else None,
+        max_battery_discharge_w=int(row["max_battery_discharge_w"])
+        if row["max_battery_discharge_w"] is not None
+        else None,
+        min_soc_percent=int(round(float(row["min_soc_percent"])))
+        if row["min_soc_percent"] is not None
+        else None,
+        reserve_soc_percent=int(row["reserve_soc_percent"])
+        if row["reserve_soc_percent"] is not None
+        else None,
+        max_soc_percent=int(row["max_soc_percent"])
+        if row["max_soc_percent"] is not None
+        else None,
+        usable_capacity_wh=int(row["usable_capacity_wh"])
+        if row["usable_capacity_wh"] is not None
+        else None,
+        max_charge_a=max_charge_a,
+        max_discharge_a=max_discharge_a,
+        deye_last_system_time_sync_minute=row["deye_last_system_time_sync_minute"],
+        deye_last_system_time_sync_at=row["deye_last_system_time_sync_at"],
+        deye_last_tou_inactive_write_prague_date=row[
+            "deye_last_tou_inactive_write_prague_date"
+        ],
+        deye_tou_inactive_signature=row["deye_tou_inactive_signature"],
+        deye_zero_export_mode=int(row["deye_zero_export_mode"]),
+        deye_gen_microinverter_cutoff_enabled=bool(
+            row["deye_gen_microinverter_cutoff_enabled"] or False
+        ),
+        pv_a_cap_w=int(row["pv_a_cap_w"] or 0),
+        deye_reg340_pv_a_control_enabled=bool(
+            row["deye_reg340_pv_a_control_enabled"] or False
+        ),
+    )
+
+
+async def _fetch_plan_row_for_slot_offset(
+    site_id: int, db: asyncpg.Connection, slot_offset: int
+) -> asyncpg.Record | None:
+    """Řádek plánu pro slot z ems.fn_planning_interval_at_offset (jsonb -> Record-like dict)."""
+    raw = await db.fetchval(
+        """
+        select ems.fn_planning_interval_at_offset($1::int, $2::int)
+        """,
+        site_id,
+        slot_offset,
+    )
+    if raw is None:
+        return None
+    data = raw if isinstance(raw, dict) else json.loads(raw)
+    if not data:
+        return None
+    return _DictRecord(data)
+
+
+async def _fetch_max_charge_power_w(site_id: int, db: asyncpg.Connection) -> int:
+    v = await db.fetchval(
+        "select ems.fn_planning_max_effective_charge_w($1::int)",
+        site_id,
+    )
+    return int(v or 0)

backend/services/control/setpoints.py

@@ -0,0 +1,294 @@
+"""Výpočet control setpointů a Deye TOU parametrů."""
+
+from __future__ import annotations
+
+import logging
+from datetime import datetime
+from typing import Any
+
+from services.control.deye_helpers import (
+    BATT_VOLTAGE_V,
+    PRAGUE_TZ,
+    battery_watts_to_amps,
+    compute_pv_a_reg340_max_solar_w,
+    watts_to_amps,
+)
+from services.control.models import ControlSetpoints, InverterConfig, OperatingModeInfo
+
+logger = logging.getLogger(__name__)
+
+
+def _deye_system_time_register_rows() -> tuple[datetime, list[tuple[int, str, int]]]:
+    """Hodnoty pro reg 62-64 (Europe/Prague); sekundy v reg 64 = 0 (stabilnější zápis)."""
+    now = datetime.now(PRAGUE_TZ).replace(second=0, microsecond=0)
+    reg62 = ((now.year - 2000) << 8) | now.month
+    reg63 = (now.day << 8) | now.hour
+    reg64 = (now.minute << 8) | 0
+    rows = [
+        (62, "", reg62),
+        (63, "", reg63),
+        (64, "", reg64),
+    ]
+    return now, rows
+
+
+def _deye_time_point_rows(
+    slot_index: int,
+    time_hhmm: int,
+    power_w: int,
+    soc_pct: int,
+    grid_charge: bool,
+) -> list[tuple[int, str, int]]:
+    g = 1 if grid_charge else 0
+    return [
+        (148 + slot_index, "", time_hhmm),
+        (154 + slot_index, "", power_w),
+        (166 + slot_index, "", soc_pct),
+        (172 + slot_index, "", g),
+    ]
+
+
+class _DictRecord:
+    """Minimální asyncpg Record kompatibilita pro dict z jsonb."""
+
+    __slots__ = ("_d",)
+
+    def __init__(self, d: dict[str, Any]) -> None:
+        self._d = d
+
+    def __getitem__(self, k: str) -> Any:
+        return self._d[k]
+
+    def get(self, k: str, default: Any = None) -> Any:
+        return self._d.get(k, default)
+
+    def __contains__(self, k: str) -> bool:
+        return k in self._d
+
+
+def _build_setpoints(
+    mode: OperatingModeInfo,
+    pi: Any | None,
+    *,
+    pv_a_cap_w: int = 0,
+    reg340_pv_a_control_enabled: bool = False,
+) -> ControlSetpoints | None:
+    code = mode.mode_code
+    if code == "MANUAL":
+        return None
+
+    if code == "AUTO":
+        if pi is None:
+            return None
+        grid_sp = int(pi["grid_setpoint_w"] or 0)
+        ev1_w = int(pi["ev1_setpoint_w"] or 0) if "ev1_setpoint_w" in pi else 0
+        ev2_w = int(pi["ev2_setpoint_w"] or 0) if "ev2_setpoint_w" in pi else 0
+        hp_en = bool(pi["heat_pump_enabled"])
+        tgt = pi["battery_soc_target_pct"]
+        target_soc = int(round(float(tgt))) if tgt is not None else None
+        pm_raw = pi.get("deye_physical_mode")
+        pm: str | None = str(pm_raw).strip().upper() if pm_raw is not None else None
+        sell_raw = pi.get("effective_sell_price")
+        sell_f: float | None = float(sell_raw) if sell_raw is not None else None
+        # Záporný výkup sám o sobě neblokuje export, pokud plán export explicitně žádá.
+        export_ban = sell_f is not None and float(sell_f) < 0 and grid_sp >= 0
+        gen_cutoff_raw = pi.get("deye_gen_cutoff_enabled")
+        gen_cutoff = bool(gen_cutoff_raw) if gen_cutoff_raw is not None else False
+        pv_a_allowed: int | None = None
+        if bool(reg340_pv_a_control_enabled) and int(pv_a_cap_w) > 0:
+            forecast = int(pi.get("pv_a_forecast_solver_w") or 0)
+            curtail = int(pi.get("pv_a_curtailed_w") or 0)
+            pv_a_allowed = compute_pv_a_reg340_max_solar_w(int(pv_a_cap_w), forecast, curtail)
+            buy_raw = pi.get("effective_buy_price")
+            buy_f: float | None = float(buy_raw) if buy_raw is not None else None
+            pv_b = int(pi.get("pv_b_forecast_solver_w") or 0)
+            if (
+                buy_f is not None
+                and sell_f is not None
+                and float(buy_f) < 0.0
+                and float(sell_f) < 0.0
+                and pv_b > 0
+            ):
+                pv_a_allowed = 0
+        return ControlSetpoints(
+            battery_w=int(pi["battery_setpoint_w"] or 0),
+            grid_export_limit=abs(min(grid_sp, 0)),
+            ev1_current_a=watts_to_amps(ev1_w, phases=3),
+            ev2_current_a=watts_to_amps(ev2_w, phases=1),
+            heat_pump_enable=hp_en,
+            grid_setpoint_w=grid_sp,
+            ev1_power_w=ev1_w,
+            ev2_power_w=ev2_w,
+            target_soc_pct=target_soc,
+            deye_physical_mode=pm,
+            export_ban=bool(export_ban),
+            deye_gen_cutoff_enabled=bool(gen_cutoff),
+            effective_sell_price_czk_kwh=sell_f,
+            pv_a_allowed_w=pv_a_allowed,
+        )
+
+    if code == "SELF_SUSTAIN":
+        return ControlSetpoints(
+            battery_w=None,
+            grid_export_limit=0,
+            ev1_current_a=0,
+            ev2_current_a=0,
+            heat_pump_enable=False,
+            grid_setpoint_w=0,
+            ev1_power_w=0,
+            ev2_power_w=0,
+            target_soc_pct=None,
+            self_sustain_local_use=True,
+        )
+
+    if code == "CHARGE_CHEAP":
+        return ControlSetpoints(
+            battery_w=0,
+            grid_export_limit=0,
+            ev1_current_a=0,
+            ev2_current_a=0,
+            heat_pump_enable=False,
+            grid_setpoint_w=0,
+            ev1_power_w=0,
+            ev2_power_w=0,
+            target_soc_pct=None,
+        )
+
+    if code == "PRESERVE":
+        return ControlSetpoints(
+            battery_w=0,
+            grid_export_limit=0,
+            ev1_current_a=0,
+            ev2_current_a=0,
+            heat_pump_enable=False,
+            grid_setpoint_w=0,
+            ev1_power_w=0,
+            ev2_power_w=0,
+            target_soc_pct=None,
+            lock_battery=True,
+        )
+
+    logger.warning("Unknown mode_code %s for site export, skipping", code)
+    return None
+
+
+def _apply_price_failsafe_guard(
+    site_id: int,
+    mode: OperatingModeInfo,
+    pi: Any | None,
+    sp: ControlSetpoints,
+) -> ControlSetpoints:
+    if mode.mode_code != "AUTO" or pi is None:
+        return sp
+    if "is_predicted_price" not in pi or not bool(pi["is_predicted_price"]):
+        return sp
+    logger.warning(
+        "control export site=%s: AUTO slot uses predicted price -> forcing PASSIVE no-export guard",
+        site_id,
+    )
+    return ControlSetpoints(
+        battery_w=0,
+        grid_export_limit=0,
+        ev1_current_a=sp.ev1_current_a,
+        ev2_current_a=sp.ev2_current_a,
+        heat_pump_enable=sp.heat_pump_enable,
+        grid_setpoint_w=max(0, int(sp.grid_setpoint_w or 0)),
+        ev1_power_w=sp.ev1_power_w,
+        ev2_power_w=sp.ev2_power_w,
+        target_soc_pct=sp.target_soc_pct,
+        effective_sell_price_czk_kwh=sp.effective_sell_price_czk_kwh,
+        pv_a_allowed_w=sp.pv_a_allowed_w,
+    )
+
+
+def _deye_reg143_export_w(no_export: bool, max_export_power_w: int | None) -> int:
+    """Reg 143 - max export W z DB (např. SUN-20K / home-01 = 13 500 W)."""
+    if no_export:
+        return 0
+    return max(0, int(max_export_power_w or 0))
+
+
+def _clamp_deye_tou_soc_pct(pct: int) -> int:
+    return max(5, min(95, pct))
+
+
+def _deye_tou_min_soc_pct(inv: InverterConfig) -> int:
+    if inv.min_soc_percent is not None:
+        return _clamp_deye_tou_soc_pct(int(inv.min_soc_percent))
+    return 10
+
+
+def _deye_tou_reserve_soc_pct(inv: InverterConfig) -> int:
+    if inv.reserve_soc_percent is not None:
+        return _clamp_deye_tou_soc_pct(int(inv.reserve_soc_percent))
+    return 20
+
+
+def _deye_passive_tou_battery_soc_pct(
+    inv: InverterConfig, _setpoints: ControlSetpoints
+) -> int:
+    """Hodnota SOC u Deye TOU řádku (reg 166+) ve fyzickém PASSIVE."""
+    return _deye_tou_min_soc_pct(inv)
+
+
+def _deye_zero_export_amps_for_passive(
+    grid_w: int,
+    bat_w: int,
+    max_charge_a: int,
+    max_discharge_a: int,
+) -> tuple[int, int]:
+    """
+    PASSIVE (zero export k CT/zátěži): výchozí plné 108/109.
+
+    Export v plánu bez vybíjení baterie vypne charge A; import bez nabíjení vypne discharge A.
+    """
+    if grid_w < 0 and bat_w >= 0:
+        return 0, max_discharge_a
+    if grid_w > 0 and bat_w <= 0:
+        return max_charge_a, 0
+    return max_charge_a, max_discharge_a
+
+
+def get_deye_mode(setpoints: ControlSetpoints) -> str:
+    """Fyzický režim Deye: SELL | CHARGE | PASSIVE."""
+    pm = (setpoints.deye_physical_mode or "").strip().upper()
+    if pm in {"PASSIVE", "SELL", "CHARGE"}:
+        return pm
+
+    grid_w = int(setpoints.grid_setpoint_w or 0)
+    bat_w = 0 if setpoints.battery_w is None else int(setpoints.battery_w)
+
+    if bat_w > 0 and grid_w > 0:
+        return "CHARGE"
+
+    if grid_w < 0 and bat_w < 0:
+        return "SELL"
+
+    return "PASSIVE"
+
+
+def _deye_tou_params(
+    setpoints: ControlSetpoints,
+    inv: InverterConfig,
+) -> tuple[int, int, bool]:
+    """Parametry jednoho Deye time pointu: výkon W, SOC % (TOU reg 166+), grid_charge."""
+    max_batt_w_discharge = int(inv.max_discharge_a * BATT_VOLTAGE_V)
+    tp_discharge_w = 0 if setpoints.lock_battery else max_batt_w_discharge
+    tou_min = _deye_tou_min_soc_pct(inv)
+    tou_reserve = _deye_tou_reserve_soc_pct(inv)
+    if setpoints.lock_battery:
+        return tp_discharge_w, tou_min, False
+    deye_mode = get_deye_mode(setpoints)
+    if deye_mode == "CHARGE":
+        raw_bat = setpoints.battery_w
+        battery_w = int(raw_bat) if raw_bat is not None else 0
+        cap = int(inv.max_soc_percent) if inv.max_soc_percent is not None else 95
+        target_soc = max(10, min(100, cap))
+        tp_charge_w = (
+            battery_watts_to_amps(battery_w, int(inv.max_charge_a)) * int(BATT_VOLTAGE_V)
+        )
+        return tp_charge_w, target_soc, True
+    if deye_mode == "SELL":
+        return tp_discharge_w, tou_reserve, False
+    tou_soc = _deye_passive_tou_battery_soc_pct(inv, setpoints)
+    return tp_discharge_w, tou_soc, False

backend/services/control/verify.py

@@ -0,0 +1,476 @@
+"""Modbus verify workflow pro control export."""
+
+from __future__ import annotations
+
+import logging
+from collections import defaultdict
+from typing import Any
+
+import asyncpg
+
+from services.control.deye_helpers import (
+    DEYE_CLOCK_REGS,
+    DEYE_TOU_POWER_REGS,
+    REG178_VERIFY_MASK,
+    _deye_clock_registers_verify_match,
+    _deye_reg178_verify_match,
+    _deye_reg178_verify_with_double_read,
+    _deye_tou_power_verify_match,
+    _prague_minute_start_utc,
+    deye_reg_triggers_self_sustain_after_verify_exhaust,
+)
+from services.control.modbus_journal import (
+    _fetch_last_verified_inverter_registers,
+    _fetch_written_deye_clock_commands,
+    _modbus_command_contiguous_runs,
+    execute_modbus_commands,
+)
+from services.control.repository import _load_inverter_config
+from services.modbus_client import get_modbus_client
+
+logger = logging.getLogger(__name__)
+
+
+async def _switch_to_self_sustain(site_id: int, db: asyncpg.Connection, reason: str) -> None:
+    """Přepne lokalitu na SELF_SUSTAIN, zaloguje důvod a při změně pošle Discord."""
+    from services.notification_service import run_fn_set_mode_with_discord
+
+    await run_fn_set_mode_with_discord(
+        db,
+        site_id,
+        "SELF_SUSTAIN",
+        "system:mismatch",
+        None,
+        reason,
+    )
+    logger.critical("Site %s switched to SELF_SUSTAIN: %s", site_id, reason)
+
+
+def _modbus_cmd_register(cmd: Any) -> int:
+    """asyncpg.Record má __getitem__; objekty s atributem .register též (testy)."""
+    try:
+        return int(cmd["register"])
+    except (KeyError, TypeError):
+        return int(cmd.register)
+
+
+def _deye_expected_clock_triplet_for_verify(
+    bundle: list[asyncpg.Record],
+    last_verified: dict[int, int],
+    a62: int,
+    a63: int,
+    a64: int,
+) -> tuple[int, int, int]:
+    """
+    Sestaví očekávané (w62,w63,w64) pro toleranční verify.
+    Chybějící registry doplní poslední verified nebo aktuálním přečtením ze zařízení.
+    """
+    by_reg = {_modbus_cmd_register(c): c for c in bundle}
+
+    def _vtw(c: Any) -> int:
+        try:
+            return int(c["value_to_write"])
+        except (KeyError, TypeError):
+            return int(c.value_to_write)
+
+    w62 = _vtw(by_reg[62]) if 62 in by_reg else last_verified.get(62, a62)
+    w63 = _vtw(by_reg[63]) if 63 in by_reg else last_verified.get(63, a63)
+    w64 = _vtw(by_reg[64]) if 64 in by_reg else last_verified.get(64, a64)
+    return (int(w62), int(w63), int(w64))
+
+
+async def _verify_deye_clock_written_bundle(
+    site_id: int,
+    bundle: list[asyncpg.Record],
+    a62: int,
+    a63: int,
+    a64: int,
+    db: asyncpg.Connection,
+) -> bool:
+    """
+    Toleranční ověření pro jeden až tři řádky journalu 62-64 ve stavu written.
+    Při mismatch retry společně; bez přepnutí do SELF_SUSTAIN po 3 pokusech.
+    """
+    from services.notification_service import (
+        notify_modbus_clock_verify_exhausted,
+        notify_modbus_mismatch,
+    )
+
+    cmds_s = sorted(bundle, key=_modbus_cmd_register)
+    try:
+        asset_id = int(cmds_s[0]["asset_id"])
+    except (KeyError, TypeError):
+        asset_id = int(cmds_s[0].asset_id)
+    last_v = await _fetch_last_verified_inverter_registers(site_id, asset_id, db)
+    w62, w63, w64 = _deye_expected_clock_triplet_for_verify(bundle, last_v, a62, a63, a64)
+    clock_ok = _deye_clock_registers_verify_match(w62, w63, w64, a62, a63, a64)
+    actual_by_reg = {62: a62, 63: a63, 64: a64}
+
+    for cmd in cmds_s:
+        try:
+            cid = int(cmd["id"])
+        except (KeyError, TypeError):
+            cid = int(cmd.id)
+        r = _modbus_cmd_register(cmd)
+        await db.execute(
+            """
+            UPDATE ems.modbus_command
+            SET value_verified=$1::int, verified_at=now(),
+                status=CASE WHEN $2::boolean THEN 'verified' ELSE 'mismatch' END
+            WHERE id=$3::int
+            """,
+            actual_by_reg[r],
+            clock_ok,
+            cid,
+        )
+
+    if clock_ok:
+        await db.execute(
+            """
+            UPDATE ems.asset_inverter
+            SET deye_last_system_time_sync_minute = $1,
+                deye_last_system_time_sync_at = now()
+            WHERE id = $2
+            """,
+            _prague_minute_start_utc(),
+            asset_id,
+        )
+        for cmd in cmds_s:
+            try:
+                cid_l = int(cmd["id"])
+            except (KeyError, TypeError):
+                cid_l = int(cmd.id)
+            try:
+                code_l = str(cmd["asset_code"])
+            except (KeyError, TypeError):
+                code_l = str(cmd.asset_code)
+            rr = _modbus_cmd_register(cmd)
+            logger.info(
+                "[cmd %s] verified OK (clock tolerant): %s 0x%04X=%s",
+                cid_l,
+                code_l,
+                rr,
+                actual_by_reg[rr],
+            )
+        return True
+
+    cmd0 = cmds_s[0]
+    try:
+        ac0 = str(cmd0["asset_code"])
+    except (KeyError, TypeError):
+        ac0 = str(cmd0.asset_code)
+    logger.error(
+        "[cmd clock] MISMATCH %s 62-64: written=(%s,%s,%s) actual=(%s,%s,%s)",
+        ac0,
+        w62,
+        w63,
+        w64,
+        a62,
+        a63,
+        a64,
+    )
+
+    attempts = 0
+    for cmd in cmds_s:
+        try:
+            cid_q = int(cmd["id"])
+        except (KeyError, TypeError):
+            cid_q = int(cmd.id)
+        row_ac = await db.fetchrow(
+            "SELECT attempt_count FROM ems.modbus_command WHERE id=$1", cid_q
+        )
+        ac = int(row_ac["attempt_count"] or 0) if row_ac else 0
+        attempts = max(attempts, ac)
+
+    await notify_modbus_mismatch(
+        db,
+        site_id,
+        ac0,
+        62,
+        "system_time_62_64",
+        w62,
+        a62,
+        attempts,
+    )
+
+    ids_ordered = []
+    for c in cmds_s:
+        try:
+            ids_ordered.append(int(c["id"]))
+        except (KeyError, TypeError):
+            ids_ordered.append(int(c.id))
+    if attempts < 3:
+        for cid in ids_ordered:
+            await db.execute(
+                "UPDATE ems.modbus_command SET status='retrying' WHERE id=$1",
+                cid,
+            )
+        await execute_modbus_commands(ids_ordered, db)
+        await verify_modbus_commands(ids_ordered, db, site_id)
+    else:
+        logger.critical(
+            "[cmd clock] 3 failed verify attempts (62-64); režim se nemění automaticky"
+        )
+        site = await db.fetchrow("SELECT code FROM ems.site WHERE id=$1", site_id)
+        await notify_modbus_clock_verify_exhausted(
+            db,
+            site_id,
+            site["code"] if site else str(site_id),
+            ac0,
+            (w62, w63, w64),
+            (a62, a63, a64),
+        )
+    return False
+
+
+async def verify_modbus_commands(
+    command_ids: list[int],
+    db: asyncpg.Connection,
+    site_id: int,
+) -> bool:
+    """
+    Přečte registry zpět (FC 3 po souvislých blocích) a porovná s value_to_write.
+    Při mismatch řeší retry a po vyčerpání kritických registrů SELF_SUSTAIN.
+    """
+    from services.notification_service import notify_modbus_mismatch
+
+    inv_cfg = await _load_inverter_config(site_id, db)
+
+    async def _apply_verify_result(
+        cmd: asyncpg.Record,
+        actual_i: int,
+        *,
+        client: Any,
+        unit: int,
+    ) -> bool:
+        reg = int(cmd["register"])
+        cmd_id = int(cmd["id"])
+
+        if reg in DEYE_CLOCK_REGS:
+            asset_id = int(cmd["asset_id"])
+            host = str(cmd["device_host"])
+            port_i = int(cmd["device_port"])
+            uid = int(cmd["device_unit_id"])
+            bundle = await _fetch_written_deye_clock_commands(
+                site_id, asset_id, host, port_i, uid, db
+            )
+            if not bundle:
+                bundle = [cmd]
+            try:
+                cvals = await client.read_holding_registers(62, 3, uid)
+            except Exception as e:
+                logger.error(
+                    "verify clock guard read 62-64 failed (reg 0x%04X): %s", reg, e
+                )
+                return False
+            if len(cvals) != 3:
+                logger.error("verify clock guard: expected 3 regs, got %s", len(cvals))
+                return False
+            logger.warning(
+                "Clock register 0x%04X reached strict verify path; using tolerant 62-64 bundle",
+                reg,
+            )
+            return await _verify_deye_clock_written_bundle(
+                site_id,
+                bundle,
+                int(cvals[0]),
+                int(cvals[1]),
+                int(cvals[2]),
+                db,
+            )
+
+        expected_i = int(cmd["value_to_write"])
+        matches = actual_i == expected_i
+        if reg == 178:
+            first_178 = int(actual_i)
+            second_178: int | None = None
+            if not _deye_reg178_verify_match(expected_i, first_178):
+                try:
+                    r178 = await client.read_holding_registers(178, 1, unit)
+                    if r178 and len(r178) >= 1:
+                        second_178 = int(r178[0])
+                except Exception as e:
+                    logger.warning("[cmd %s] reg178 double-read failed: %s", cmd_id, e)
+            matches, actual_i = _deye_reg178_verify_with_double_read(
+                expected_i, first_178, second_178
+            )
+            if (
+                matches
+                and second_178 is not None
+                and not _deye_reg178_verify_match(expected_i, first_178)
+            ):
+                logger.info(
+                    "[cmd %s] reg178 double-read recovered: first=%s second=%s",
+                    cmd_id,
+                    first_178,
+                    second_178,
+                )
+        if not matches and reg in DEYE_TOU_POWER_REGS and inv_cfg is not None:
+            matches = _deye_tou_power_verify_match(expected_i, actual_i, inv_cfg)
+
+        await db.execute(
+            """
+            UPDATE ems.modbus_command
+            SET value_verified=$1::int, verified_at=now(),
+                status=CASE WHEN $2::boolean THEN 'verified' ELSE 'mismatch' END
+            WHERE id=$3::int
+            """,
+            actual_i,
+            matches,
+            cmd_id,
+        )
+
+        if not matches:
+            logger.error(
+                "[cmd %s] MISMATCH %s 0x%04X: expected=%s actual=%s%s",
+                cmd_id,
+                cmd["asset_code"],
+                reg,
+                expected_i,
+                actual_i,
+                " (reg178 mask 0x%04X)" % REG178_VERIFY_MASK if reg == 178 else "",
+            )
+            row_ac = await db.fetchrow(
+                "SELECT attempt_count FROM ems.modbus_command WHERE id=$1", cmd_id
+            )
+            attempts = int(row_ac["attempt_count"] or 0) if row_ac else 0
+            await notify_modbus_mismatch(
+                db,
+                site_id,
+                cmd["asset_code"],
+                reg,
+                cmd["register_name"] or "",
+                expected_i,
+                actual_i,
+                attempts,
+            )
+
+            if attempts < 3:
+                await db.execute(
+                    "UPDATE ems.modbus_command SET status='retrying' WHERE id=$1",
+                    cmd_id,
+                )
+                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):
+                    logger.critical(
+                        "[cmd %s] 3 failed attempts, switching to SELF_SUSTAIN",
+                        cmd_id,
+                    )
+                    await _switch_to_self_sustain(
+                        site_id,
+                        db,
+                        reason=(
+                            f"Modbus mismatch po 3 pokusech: {cmd['asset_code']} "
+                            f"reg 0x{reg:04X}"
+                        ),
+                    )
+                else:
+                    logger.warning(
+                        "[cmd %s] 3 failed verify attempts on non-critical reg 0x%04X "
+                        "(no mode change): %s",
+                        cmd_id,
+                        reg,
+                        cmd["asset_code"],
+                    )
+            return False
+
+        if reg == 178 and actual_i != expected_i:
+            logger.info(
+                "[cmd %s] verified OK (reg178 masked): %s 0x%04X value_to_write=%s actual=%s",
+                cmd_id,
+                cmd["asset_code"],
+                reg,
+                expected_i,
+                actual_i,
+            )
+        else:
+            logger.info(
+                "[cmd %s] verified OK: %s 0x%04X=%s",
+                cmd_id,
+                cmd["asset_code"],
+                reg,
+                actual_i,
+            )
+        return True
+
+    cmds: list[asyncpg.Record] = []
+    for cmd_id in command_ids:
+        cmd = await db.fetchrow(
+            "SELECT * FROM ems.modbus_command WHERE id=$1", cmd_id
+        )
+        if cmd is not None and cmd["status"] == "written":
+            cmds.append(cmd)
+
+    if not cmds:
+        return True
+
+    by_gw: dict[tuple[str, int, int], list[asyncpg.Record]] = defaultdict(list)
+    for cmd in cmds:
+        by_gw[
+            (cmd["device_host"], int(cmd["device_port"]), int(cmd["device_unit_id"]))
+        ].append(cmd)
+
+    all_ok = True
+    for (host, port, unit), group in by_gw.items():
+        client = await get_modbus_client(host, port)
+        clock_cmds = [c for c in group if int(c["register"]) in DEYE_CLOCK_REGS]
+        rest = [c for c in group if int(c["register"]) not in DEYE_CLOCK_REGS]
+
+        if clock_cmds:
+            asset_id = int(clock_cmds[0]["asset_id"])
+            bundle = await _fetch_written_deye_clock_commands(
+                site_id, asset_id, host, port, unit, db
+            )
+            if not bundle:
+                bundle = clock_cmds
+            try:
+                cvals = await client.read_holding_registers(62, 3, unit)
+            except Exception as e:
+                logger.error("verify clock read 62-64 failed: %s", e)
+                all_ok = False
+            else:
+                if len(cvals) != 3:
+                    logger.error("verify clock read: expected 3 regs, got %s", len(cvals))
+                    all_ok = False
+                else:
+                    matched = await _verify_deye_clock_written_bundle(
+                        site_id,
+                        bundle,
+                        int(cvals[0]),
+                        int(cvals[1]),
+                        int(cvals[2]),
+                        db,
+                    )
+                    if not matched:
+                        all_ok = False
+
+        for run in _modbus_command_contiguous_runs(rest):
+            start_reg = int(run[0]["register"])
+            n = len(run)
+            try:
+                values = await client.read_holding_registers(start_reg, n, unit)
+            except Exception as e:
+                logger.error(
+                    "verify batch read 0x%04X count=%s failed: %s", start_reg, n, e
+                )
+                all_ok = False
+                continue
+            if len(values) != n:
+                logger.error(
+                    "verify read 0x%04X: expected %s regs, got %s",
+                    start_reg,
+                    n,
+                    len(values),
+                )
+                all_ok = False
+                continue
+            for cmd, actual in zip(run, values):
+                matched = await _apply_verify_result(
+                    cmd, int(actual), client=client, unit=unit
+                )
+                if not matched:
+                    all_ok = False
+
+    return all_ok