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pv_forecas
...
lüftungsan
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87
main.py
87
main.py
@@ -26,57 +26,56 @@ db = DataBaseInflux(
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bucket="allmende_db"
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)
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# hp_master = HeatPump(device_name='hp_master', ip_address='10.0.0.10', port=502)
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# hp_slave = HeatPump(device_name='hp_slave', ip_address='10.0.0.11', port=502)
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# shelly = ShellyPro3m(device_name='wohnung_2_6', ip_address='192.168.1.121')
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wr_master = PvInverter(device_name='solaredge_master', ip_address='192.168.1.112', unit=1)
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wr_slave = PvInverter(device_name='solaredge_slave', ip_address='192.168.1.112', unit=3)
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hp_master = HeatPump(device_name='hp_master', ip_address='127.0.0.1', port=8111)
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hp_slave = HeatPump(device_name='hp_slave', ip_address='127.0.0.1', port=8111)
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shelly = ShellyPro3m(device_name='wohnung_2_6', ip_address='192.168.1.121')
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wr = PvInverter(device_name='solaredge_master', ip_address='192.168.1.112')
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meter = SolaredgeMeter(device_name='solaredge_meter', ip_address='192.168.1.112')
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es.add_components(wr_master, wr_slave)#hp_master, hp_slave, shelly, wr_master, wr_slave, meter)
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# controller = SgReadyController(es)
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#
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# # FORECASTING
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# latitude = 48.041
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# longitude = 7.862
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# TZ = "Europe/Berlin"
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# HORIZON_DAYS = 2
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# weather_forecaster = WeatherForecaster(latitude=latitude, longitude=longitude)
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# site = Location(latitude=latitude, longitude=longitude, altitude=35, tz=TZ, name="Gundelfingen")
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#
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# p_module = 435
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# upper_roof_north = PvWattsSubarrayConfig(name="north", pdc0_w=(29+29+21)*p_module, tilt_deg=10, azimuth_deg=20, dc_loss=0.02, ac_loss=0.01)
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# upper_roof_south = PvWattsSubarrayConfig(name="south", pdc0_w=(29+21+20)*p_module, tilt_deg=10, azimuth_deg=200, dc_loss=0.02, ac_loss=0.01)
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# upper_roof_east = PvWattsSubarrayConfig(name="east", pdc0_w=7*p_module, tilt_deg=10, azimuth_deg=110, dc_loss=0.02, ac_loss=0.01)
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# upper_roof_west = PvWattsSubarrayConfig(name="west", pdc0_w=7*p_module, tilt_deg=10, azimuth_deg=290, dc_loss=0.02, ac_loss=0.01)
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# cfgs = [upper_roof_north, upper_roof_south, upper_roof_east, upper_roof_west]
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# pv_plant = PvWattsPlant(site, cfgs)
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#
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# now = datetime.now()
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# next_forecast_at = (now + dt.timedelta(hours=1)).replace(minute=0, second=0, microsecond=0)
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es.add_components(hp_master, hp_slave, shelly, wr, meter)
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controller = SgReadyController(es)
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# FORECASTING
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latitude = 48.041
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longitude = 7.862
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TZ = "Europe/Berlin"
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HORIZON_DAYS = 2
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weather_forecaster = WeatherForecaster(latitude=latitude, longitude=longitude)
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site = Location(latitude=latitude, longitude=longitude, altitude=35, tz=TZ, name="Gundelfingen")
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p_module = 435
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upper_roof_north = PvWattsSubarrayConfig(name="north", pdc0_w=(29+29+21)*p_module, tilt_deg=10, azimuth_deg=20, dc_loss=0.02, ac_loss=0.01)
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upper_roof_south = PvWattsSubarrayConfig(name="south", pdc0_w=(29+21+20)*p_module, tilt_deg=10, azimuth_deg=200, dc_loss=0.02, ac_loss=0.01)
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upper_roof_east = PvWattsSubarrayConfig(name="east", pdc0_w=7*p_module, tilt_deg=10, azimuth_deg=110, dc_loss=0.02, ac_loss=0.01)
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upper_roof_west = PvWattsSubarrayConfig(name="west", pdc0_w=7*p_module, tilt_deg=10, azimuth_deg=290, dc_loss=0.02, ac_loss=0.01)
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cfgs = [upper_roof_north, upper_roof_south, upper_roof_east, upper_roof_west]
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pv_plant = PvWattsPlant(site, cfgs)
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now = datetime.now()
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next_forecast_at = (now + dt.timedelta(hours=1)).replace(minute=0, second=0, microsecond=0)
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while True:
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now = datetime.now()
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if now.second % interval_seconds == 0 and now.microsecond < 100_000:
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state = es.get_state_and_store_to_database(db)
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# mode = controller.perform_action(heat_pump_name='hp_master', meter_name='solaredge_meter', state=state)
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#
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# if mode == 'mode1':
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# mode_as_binary = 0
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# else:
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# mode_as_binary = 1
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# db.store_data('sg_ready', {'mode': mode_as_binary})
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mode = controller.perform_action(heat_pump_name='hp_master', meter_name='solaredge_meter', state=state)
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# if now >= next_forecast_at:
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# # Start der Prognose: ab der kommenden vollen Stunde
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# start_hour_local = (now + dt.timedelta(hours=1)).replace(minute=0, second=0, microsecond=0)
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# weather = weather_forecaster.get_hourly_forecast(start_hour_local, HORIZON_DAYS)
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# total = pv_plant.get_power(weather)
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# db.store_forecasts('pv_forecast', total)
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#
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# # Nächste geplante Ausführung definieren (immer volle Stunde)
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# # Falls wir durch Delay mehrere Stunden verpasst haben, hole auf:
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# while next_forecast_at <= now:
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# next_forecast_at = (next_forecast_at + dt.timedelta(hours=1)).replace(minute=0, second=0, microsecond=0)
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if mode == 'mode1':
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mode_as_binary = 0
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else:
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mode_as_binary = 1
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db.store_data('sg_ready', {'mode': mode_as_binary})
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if now >= next_forecast_at:
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# Start der Prognose: ab der kommenden vollen Stunde
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start_hour_local = (now + dt.timedelta(hours=1)).replace(minute=0, second=0, microsecond=0)
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weather = weather_forecaster.get_hourly_forecast(start_hour_local, HORIZON_DAYS)
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total = pv_plant.get_power(weather)
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db.store_forecasts('pv_forecast', total)
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# Nächste geplante Ausführung definieren (immer volle Stunde)
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# Falls wir durch Delay mehrere Stunden verpasst haben, hole auf:
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while next_forecast_at <= now:
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next_forecast_at = (next_forecast_at + dt.timedelta(hours=1)).replace(minute=0, second=0, microsecond=0)
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time.sleep(0.1)
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BIN
modbus_registers/_modbus_register_template.xlsx
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modbus_registers/_modbus_register_template.xlsx
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modbus_registers/ventilation_modbus_registers.xlsx
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modbus_registers/ventilation_modbus_registers.xlsx
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232
pv_inverter.py
232
pv_inverter.py
@@ -1,155 +1,139 @@
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# pv_inverter.py
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# -*- coding: utf-8 -*-
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from typing import Optional, Dict, Any, List
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from pymodbus.client import ModbusTcpClient
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from pymodbus.exceptions import ModbusIOException
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import struct
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import time
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import struct
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import pandas as pd
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from typing import Dict, Any, List, Tuple, Optional
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from pymodbus.client import ModbusTcpClient
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EXCEL_PATH = "modbus_registers/pv_inverter_registers.xlsx"
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# Obergrenze: bis EXKLUSIVE 40206 (d.h. max. 40205)
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MAX_ADDR_EXCLUSIVE = 40121
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class PvInverter:
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"""
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Minimaler Reader für einen SolarEdge-Inverter hinter Modbus-TCP→RTU-Gateway.
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Liest nur die bekannten Register (wie im funktionierenden Skript).
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Kompatibel mit pymodbus 2.5.x und 3.x – kein retry_on_empty.
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"""
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def __init__(
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self,
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device_name: str,
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ip_address: str,
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port: int = 502,
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unit_id: int = 1,
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timeout: float = 1.5,
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silent_interval: float = 0.02,
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):
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def __init__(self, device_name: str, ip_address: str, port: int = 502, unit: int = 1):
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self.device_name = device_name
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self.host = ip_address
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self.ip = ip_address
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self.port = port
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self.unit = unit_id
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self.timeout = timeout
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self.silent_interval = silent_interval
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self.unit = unit
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self.client: Optional[ModbusTcpClient] = None
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self._connect()
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self.registers: Dict[int, Dict[str, Any]] = {} # addr -> {"desc":..., "type":...}
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self.connect_to_modbus()
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self.load_registers(EXCEL_PATH)
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# ---------------- Verbindung ----------------
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def _connect(self):
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# retries=0: keine internen Mehrfachversuche
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self.client = ModbusTcpClient(self.host, port=self.port, timeout=self.timeout, retries=0)
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# ---------- Verbindung ----------
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def connect_to_modbus(self):
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self.client = ModbusTcpClient(self.ip, port=self.port, timeout=3.0, retries=3)
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if not self.client.connect():
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raise ConnectionError(f"Verbindung zu {self.device_name} ({self.host}:{self.port}) fehlgeschlagen.")
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print(f"✅ Verbindung hergestellt zu {self.device_name} ({self.host}:{self.port}, unit={self.unit})")
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print("❌ Verbindung zu Wechselrichter fehlgeschlagen.")
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raise SystemExit(1)
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print("✅ Verbindung zu Wechselrichter hergestellt.")
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def close(self):
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if self.client:
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self.client.close()
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self.client = None
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# ---------------- Low-Level Lesen ----------------
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def _read_regs(self, addr: int, count: int) -> Optional[List[int]]:
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"""Liest 'count' Holding-Register ab base-0 'addr' für die konfigurierte Unit-ID."""
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# ---------- Register-Liste ----------
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def load_registers(self, excel_path: str):
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xls = pd.ExcelFile(excel_path)
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df = xls.parse()
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# Passe Spaltennamen hier an, falls nötig:
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cols = ["MB Adresse", "Beschreibung", "Variabel Typ"]
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df = df[cols].dropna()
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df["MB Adresse"] = df["MB Adresse"].astype(int)
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# 1) Vorab-Filter: nur Adressen < 40206 übernehmen
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df = df[df["MB Adresse"] < MAX_ADDR_EXCLUSIVE]
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self.registers = {
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int(row["MB Adresse"]): {
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"desc": str(row["Beschreibung"]).strip(),
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"type": str(row["Variabel Typ"]).strip()
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}
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for _, row in df.iterrows()
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}
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# ---------- Low-Level Lesen ----------
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def _try_read(self, fn_name: str, address: int, count: int) -> Optional[List[int]]:
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fn = getattr(self.client, fn_name)
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# pymodbus 3.8.x hat 'slave='; Fallbacks schaden nicht
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for kwargs in (dict(address=address, count=count, slave=self.unit),
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dict(address=address, count=count)):
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try:
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rr = self.client.read_holding_registers(address=addr, count=count, slave=self.unit)
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except ModbusIOException:
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time.sleep(self.silent_interval)
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return None
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except Exception:
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time.sleep(self.silent_interval)
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res = fn(**kwargs)
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if res is None or (hasattr(res, "isError") and res.isError()):
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continue
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return res.registers
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except TypeError:
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continue
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return None
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time.sleep(self.silent_interval)
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if not rr or rr.isError():
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return None
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return rr.registers
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def _read_any(self, address: int, count: int) -> Optional[List[int]]:
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regs = self._try_read("read_holding_registers", address, count)
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if regs is None:
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regs = self._try_read("read_input_registers", address, count)
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return regs
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# ---------- Decoding ----------
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@staticmethod
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def _to_int16(u16: int) -> int:
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def _to_i16(u16: int) -> int:
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return struct.unpack(">h", struct.pack(">H", u16))[0]
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@staticmethod
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def _apply_sf(raw: int, sf: int) -> float:
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return raw * (10 ** sf)
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def _to_f32_from_two(u16_hi: int, u16_lo: int, msw_first: bool = True) -> float:
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b = struct.pack(">HH", u16_hi, u16_lo) if msw_first else struct.pack(">HH", u16_lo, u16_hi)
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return struct.unpack(">f", b)[0]
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# Hilfsfunktion: wie viele 16-Bit-Register braucht dieser Typ?
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@staticmethod
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def _read_string_from_regs(regs: List[int]) -> Optional[str]:
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b = b"".join(struct.pack(">H", r) for r in regs)
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s = b.decode("ascii", errors="ignore").rstrip("\x00 ").strip()
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return s or None
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def _word_count_for_type(rtype: str) -> int:
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rt = (rtype or "").lower()
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# Passe hier an deine Excel-Typen an:
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if "uint32" in rt or "real" in rt or "float" in rt or "string(32)" in rt:
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return 2
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# Default: 1 Wort (z.B. int16/uint16)
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return 1
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# ---------------- Hilfsfunktionen ----------------
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def _read_string(self, addr: int, words: int) -> Optional[str]:
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regs = self._read_regs(addr, words)
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if regs is None:
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def read_one(self, address_excel: int, rtype: str) -> Optional[float]:
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"""
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Liest einen Wert nach Typ ('INT' oder 'REAL' etc.).
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Es werden ausschließlich Register < 40206 gelesen.
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"""
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addr = int(address_excel)
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words = self._word_count_for_type(rtype)
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# 2) Harte Grenze prüfen: höchstes angefasstes Register muss < 40206 sein
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if addr + words - 1 >= MAX_ADDR_EXCLUSIVE:
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# Überspringen, da der Lesevorgang die Grenze >= 40206 berühren würde
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return None
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return self._read_string_from_regs(regs)
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def _read_scaled(self, value_addr: int, sf_addr: int) -> Optional[float]:
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regs = self._read_regs(value_addr, 1)
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sf = self._read_regs(sf_addr, 1)
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if regs is None or sf is None:
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if words == 2:
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regs = self._read_any(addr, 2)
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if not regs or len(regs) < 2:
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return None
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raw = self._to_int16(regs[0])
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sff = self._to_int16(sf[0])
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return self._apply_sf(raw, sff)
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def _read_u32_with_sf(self, value_addr: int, sf_addr: int) -> Optional[float]:
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regs = self._read_regs(value_addr, 2)
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sf = self._read_regs(sf_addr, 1)
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if regs is None or sf is None:
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return None
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u32 = (regs[0] << 16) | regs[1]
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sff = self._to_int16(sf[0])
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return self._apply_sf(u32, sff)
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# ---------------- Öffentliche API ----------------
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def get_state(self) -> Dict[str, Any]:
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"""Liest exakt die bekannten Register und gibt ein Dict zurück."""
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state: Dict[str, Any] = {}
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# --- Common Block ---
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state["C_Manufacturer"] = self._read_string(40004, 16)
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state["C_Model"] = self._read_string(40020, 16)
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state["C_Version"] = self._read_string(40044, 8)
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state["C_SerialNumber"] = self._read_string(40052, 16)
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# --- Inverter Block ---
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state["I_AC_Power_W"] = self._read_scaled(40083, 40084)
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state["I_AC_Voltage_V"] = self._read_scaled(40079, 40082)
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state["I_AC_Frequency_Hz"] = self._read_scaled(40085, 40086)
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state["I_DC_Power_W"] = self._read_scaled(40100, 40101)
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state["I_AC_Energy_Wh_total"] = self._read_u32_with_sf(40093, 40095)
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status_regs = self._read_regs(40107, 2)
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if status_regs:
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state["I_Status"] = status_regs[0]
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state["I_Status_Vendor"] = status_regs[1]
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# Deine bisherige Logik interpretiert 2 Worte als Float32:
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return self._to_f32_from_two(regs[0], regs[1])
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else:
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state["I_Status"] = None
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state["I_Status_Vendor"] = None
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regs = self._read_any(addr, 1)
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if not regs:
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return None
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return float(self._to_i16(regs[0]))
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return state
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# ---------------- Beispiel ----------------
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if __name__ == "__main__":
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MODBUS_IP = "192.168.1.112"
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MODBUS_PORT = 502
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master = PvInverter("solaredge_master", MODBUS_IP, port=MODBUS_PORT, unit_id=1)
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slave = PvInverter("solaredge_slave", MODBUS_IP, port=MODBUS_PORT, unit_id=3)
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try:
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sm = master.get_state()
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ss = slave.get_state()
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print("\n=== MASTER ===")
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for k, v in sm.items():
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print(f"{k:22s}: {v}")
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print("\n=== SLAVE ===")
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for k, v in ss.items():
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print(f"{k:22s}: {v}")
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finally:
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master.close()
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slave.close()
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def get_state(self) -> Dict[str, Any]:
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"""
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Liest ALLE Register aus self.registers und gibt dict zurück.
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Achtet darauf, dass keine Adresse (inkl. Mehrwort) >= 40206 gelesen wird.
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"""
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data = {"Zeit": time.strftime("%Y-%m-%d %H:%M:%S")}
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for address, meta in sorted(self.registers.items()):
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words = self._word_count_for_type(meta["type"])
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# 3) Nochmals Schutz auf Ebene der Iteration:
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if address + words - 1 >= MAX_ADDR_EXCLUSIVE:
|
||||
continue
|
||||
val = self.read_one(address, meta["type"])
|
||||
if val is None:
|
||||
continue
|
||||
key = f"{address} - {meta['desc']}"
|
||||
data[key] = val
|
||||
return data
|
||||
|
||||
Binary file not shown.
18
test.py
Normal file
18
test.py
Normal file
@@ -0,0 +1,18 @@
|
||||
from pymodbus.client import ModbusTcpClient
|
||||
import struct
|
||||
|
||||
MODBUS_IP="10.0.0.40"
|
||||
client=ModbusTcpClient(MODBUS_IP, port=502)
|
||||
client.connect()
|
||||
|
||||
try:
|
||||
rr = client.read_input_registers(30, count=3, slave=1)
|
||||
print("Raw 30..32:", rr.registers)
|
||||
|
||||
def as_int16(x):
|
||||
return struct.unpack(">h", struct.pack(">H", x))[0]
|
||||
|
||||
for i, raw in enumerate(rr.registers, start=30):
|
||||
print(i, "raw", raw, "int16", as_int16(raw), "scaled", as_int16(raw)/10.0)
|
||||
finally:
|
||||
client.close()
|
||||
Reference in New Issue
Block a user