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[spicer]

Ergänzend fällt mir auf, dass der immer mit einem "Socket closed with error" abschliesst.

modbus.0
	2026-02-05 19:19:38.941	info	Disconnected from slave 192.168.88.101
modbus.0
	2026-02-05 19:19:38.940	debug	Closing client on purpose.
modbus.0
	2026-02-05 19:19:37.940	debug	Cleaning up request fifo.
modbus.0
	2026-02-05 19:19:37.939	debug	Clearing timeout of the current request.
modbus.0
	2026-02-05 19:19:37.939	debug	Socket closed with error
modbus.0
	2026-02-05 19:19:31.988	debug	[DevID_1/holdingRegs] Poll address 1668 DONE
modbus.0
	2026-02-05 19:19:31.919	debug	[DevID_1/holdingRegs] Poll address 1668 - 2 registers
modbus.0
	2026-02-05 19:19:31.668	debug	[DevID_1/holdingRegs] Poll address 1544 DONE
modbus.0
	2026-02-05 19:19:31.609	debug	[DevID_1/holdingRegs] Poll address 1544 - 1 registers
modbus.0
	2026-02-05 19:19:31.358	debug	[DevID_1/holdingRegs] Poll address 1542 DONE
modbus.0
	2026-02-05 19:19:31.299	debug	[DevID_1/holdingRegs] Poll address 1542 - 1 registers
modbus.0
	2026-02-05 19:19:31.048	debug	[DevID_1/holdingRegs] Poll address 1476 DONE
modbus.0
	2026-02-05 19:19:30.988	debug	[DevID_1/holdingRegs] Poll address 1476 - 1 registers
modbus.0
	2026-02-05 19:19:30.738	debug	[DevID_1/holdingRegs] Poll address 1160 DONE
modbus.0
	2026-02-05 19:19:30.679	debug	[DevID_1/holdingRegs] Poll address 1160 - 1 registers
modbus.0
	2026-02-05 19:19:30.428	debug	[DevID_1/holdingRegs] Poll address 1157 DONE
modbus.0
	2026-02-05 19:19:30.364	debug	[DevID_1/holdingRegs] Poll address 1157 - 1 registers
modbus.0
	2026-02-05 19:19:30.364	debug	[DevID_1] Poll start ---------------------

Einstellungen:

[spicer]

Schon wieder. Adapter lief ca 3-4h.
Man siehe den Log ab 2026-02-06 03:59:39.013.
Da stirbt die Übertragung langsam bis ab 2026-02-06 03:59:56.664 nix mehr kommt.
Wie bereits gesagt, funktioniert alles wieder nach einem Adapter neustart.

2026-02-06 03:59:02.830  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 03:59:02.831  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 03:59:02.831  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 03:59:02.897  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 DONE
2026-02-06 03:59:03.148  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1160 - 1 registers
2026-02-06 03:59:03.207  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1160 DONE
2026-02-06 03:59:03.458  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1476 - 1 registers
2026-02-06 03:59:03.517  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1476 DONE
2026-02-06 03:59:03.768  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1542 - 1 registers
2026-02-06 03:59:03.827  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1542 DONE
2026-02-06 03:59:04.078  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1544 - 1 registers
2026-02-06 03:59:04.138  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1544 DONE
2026-02-06 03:59:04.388  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1668 - 2 registers
2026-02-06 03:59:04.477  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1668 DONE
2026-02-06 03:59:10.408  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 03:59:10.408  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 03:59:10.408  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 03:59:11.409  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 03:59:11.410  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 03:59:21.412  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 03:59:21.413  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 03:59:21.413  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 03:59:21.478  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 DONE
2026-02-06 03:59:21.729  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1160 - 1 registers
2026-02-06 03:59:21.788  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1160 DONE
2026-02-06 03:59:22.039  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1476 - 1 registers
2026-02-06 03:59:22.098  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1476 DONE
2026-02-06 03:59:22.349  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1542 - 1 registers
2026-02-06 03:59:22.408  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1542 DONE
2026-02-06 03:59:22.659  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1544 - 1 registers
2026-02-06 03:59:22.738  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1544 DONE
2026-02-06 03:59:22.989  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1668 - 2 registers
2026-02-06 03:59:23.048  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1668 DONE
2026-02-06 03:59:28.009  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 03:59:28.009  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 03:59:28.009  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 03:59:29.011  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 03:59:29.011  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 03:59:39.013  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 03:59:39.014  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 03:59:39.014  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 03:59:39.079  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 DONE
2026-02-06 03:59:39.330  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1160 - 1 registers
2026-02-06 03:59:39.389  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1160 DONE
2026-02-06 03:59:39.639  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1476 - 1 registers
2026-02-06 03:59:45.659  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 03:59:45.660  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 03:59:45.660  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 03:59:46.660  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 03:59:46.661  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 03:59:56.664  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 03:59:56.664  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 03:59:56.665  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 04:00:02.690  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 04:00:02.690  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 04:00:02.690  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 04:00:03.692  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 04:00:03.692  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 04:00:13.696  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 04:00:13.696  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 04:00:13.696  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 04:00:19.720  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 04:00:19.720  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 04:00:19.720  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 04:00:20.721  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 04:00:20.722  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 04:00:30.725  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 04:00:30.726  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 04:00:30.726  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 04:00:36.751  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 04:00:36.751  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 04:00:36.751  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 04:00:37.752  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 04:00:37.753  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 04:00:47.756  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 04:00:47.757  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 04:00:47.757  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 04:00:53.781  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 04:00:53.782  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 04:00:53.782  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 04:00:54.782  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 04:00:54.783  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 04:01:04.785  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 04:01:04.786  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 04:01:04.786  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 04:01:10.812  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 04:01:10.812  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 04:01:10.813  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 04:01:11.812  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 04:01:11.813  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 04:01:21.815  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 04:01:21.816  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 04:01:21.816  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 04:01:27.843  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 04:01:27.843  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 04:01:27.843  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 04:01:28.845  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 04:01:28.845  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101

Konfiguration:

[Homoran]

@spicer sagte in Sofar Solar HYD10 KTL Wechselrichter an modbus Adapter:

Da stirbt die Übertragung langsam bis ab 2026-02-06 03:59:56.664 nix mehr kommt.

was startet bei dir um 04:00?

[spicer]

Laut Log nichts zur Fraglichen Zeit.
Die gelesenen Register nehmen schon vor sofarcloud und weathersense ab.

2026-02-06 03:59:39.013  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 03:59:39.014  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 03:59:39.014  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 03:59:39.079  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 DONE
2026-02-06 03:59:39.330  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1160 - 1 registers
2026-02-06 03:59:39.389  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1160 DONE
2026-02-06 03:59:39.639  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1476 - 1 registers
2026-02-06 03:59:45.659  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 03:59:45.660  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 03:59:45.660  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 03:59:46.660  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 03:59:46.661  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 03:59:56.664  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 03:59:56.664  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 03:59:56.665  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 04:00:02.690  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 04:00:02.690  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 04:00:02.690  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 04:00:03.692  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 04:00:03.692  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 04:00:07.029  - info: host.iobroker instance system.adapter.weathersense.0 in version "4.2.1" started with pid 933290
2026-02-06 04:00:09.479  - info: weathersense.0 (933290) starting. Version 4.2.1 in /opt/iobroker/node_modules/iobroker.weathersense, node: v22.22.0, js-controller: 7.0.7
2026-02-06 04:00:09.509  - info: weathersense.0 (933290) Start cloud query after 20 Seconds...
2026-02-06 04:00:13.696  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 04:00:13.696  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 04:00:13.696  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 04:00:19.720  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 04:00:19.720  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 04:00:19.720  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 04:00:20.721  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 04:00:20.722  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101
2026-02-06 04:00:29.030  - info: host.iobroker instance system.adapter.sofarcloud.0 in version "3.3.0" started with pid 933306
2026-02-06 04:00:30.725  - info: modbus.0 (919438) Connected to slave 192.168.88.101
2026-02-06 04:00:30.726  - debug: modbus.0 (919438) [DevID_1] Poll start ---------------------
2026-02-06 04:00:30.726  - debug: modbus.0 (919438) [DevID_1/holdingRegs] Poll address 1157 - 1 registers
2026-02-06 04:00:31.877  - info: sofarcloud.0 (933306) starting. Version 3.3.0 in /opt/iobroker/node_modules/iobroker.sofarcloud, node: v22.22.0, js-controller: 7.0.7
2026-02-06 04:00:32.002  - info: sofarcloud.0 (933306) Start cloud query after 112 seconds...
2026-02-06 04:00:32.413  - info: weathersense.0 (933290) Terminated (NO_ERROR): Everything done. Going to terminate till next schedule
2026-02-06 04:00:32.952  - info: host.iobroker instance system.adapter.weathersense.0 having pid 933290 terminated with code 0 (NO_ERROR)
2026-02-06 04:00:36.751  - debug: modbus.0 (919438) Socket closed with error
2026-02-06 04:00:36.751  - debug: modbus.0 (919438) Clearing timeout of the current request.
2026-02-06 04:00:36.751  - debug: modbus.0 (919438) Cleaning up request fifo.
2026-02-06 04:00:37.752  - debug: modbus.0 (919438) Closing client on purpose.
2026-02-06 04:00:37.753  - info: modbus.0 (919438) Disconnected from slave 192.168.88.101

[spicer]

Aber ist schon auffällig, dass es immer um die gleiche Zeit passiert.
Kann ich iwie den Adapter immer um 4:01 neu starten?

[spicer]

Jetzt hat es um 2026-02-06 16:04:24.546 angefangen. Nach nur ein paar Minuten!

Mir gefällt das "Socket closed with error" jedesmal nicht.
Das könnte doch irgend etwas füllen bis zum Crash.
Sauber ist das auf jeden Fall nicht.

[RISSN]

https://www.solarvie.at/en-eu/products/sofarsolar-ethernet-dongle-lse-3

kaufe dir einfach dieses Teil und du hast Ruhe, 55 Euro kostet weniger als die Nerven die du lassen musst. Vor allem hast du es gleich auch noch in der App

[spicer]

Habe mir eine eigene Lösung geschrieben, welche ich euch nicht vorenthalten möchte.
Habe in einem LXC, welcher für diverse Skripte zuständig ist, folgendes Python Script drauf gemacht plus eine config.yaml .
Dies sendet die Sofar-Daten per MQTT an den ioBroker.

/opt/modbus-mqtt/modbus_tcp_rtu.py

#!/usr/bin/env python3

import socket
import struct
import time
import yaml
import logging
import paho.mqtt.client as mqtt
import os

CONFIG_FILE = "/opt/modbus-mqtt/config.yaml"
LOG_FILE = "/var/log/modbus-mqtt.log"

logging.basicConfig(
    filename=LOG_FILE,
    level=logging.INFO,
    format="%(asctime)s [%(levelname)s] %(message)s"
)

logging.info("Starting modbus-mqtt with config from disk")

try:
    with open(CONFIG_FILE, "r") as f:
        cfg = yaml.safe_load(f)
except Exception as e:
    logging.error(f"Failed to load config: {e}")
    exit(1)

last_mtime = os.path.getmtime(CONFIG_FILE)

MODBUS_HOST = cfg["modbus"]["host"]
MODBUS_PORT = cfg["modbus"]["port"]
UNIT_ID = cfg["modbus"]["unit_id"]

MQTT_HOST = cfg["mqtt"]["host"]
MQTT_PORT = cfg["mqtt"]["port"]
BASE_TOPIC = cfg["mqtt"]["base_topic"]

POLL_INTERVAL = cfg["poll_interval"]
REGISTERS = cfg["registers"]

mqttc = mqtt.Client(client_id="modbus_mqtt_bridge", clean_session=True)

mqtt_user = cfg["mqtt"].get("username")
mqtt_pass = cfg["mqtt"].get("password")

if mqtt_user and mqtt_pass:
    mqttc.username_pw_set(mqtt_user, mqtt_pass)
elif mqtt_user or mqtt_pass:
    logging.warning("MQTT username or password missing. Authentication disabled.")
else:
    logging.info("No auth data found. Start without authentication")

mqttc.connect(MQTT_HOST, MQTT_PORT)
mqttc.loop_start()

# ---------------------------------------------------------
# CRC16 Modbus
# ---------------------------------------------------------

def crc16(data):
    crc = 0xFFFF
    for pos in data:
        crc ^= pos
        for _ in range(8):
            if crc & 1:
                crc = (crc >> 1) ^ 0xA001
            else:
                crc >>= 1
    return crc.to_bytes(2, byteorder="little")

# ---------------------------------------------------------
# RTU‑Frame senden über TCP
# ---------------------------------------------------------

def read_holding_registers_rtu_tcp(unit, address, count):
    # Build RTU frame: [unit][function][addr_hi][addr_lo][count_hi][count_lo][crc_lo][crc_hi]
    frame = bytearray()
    frame.append(unit)
    frame.append(0x03)  # Function code: Read Holding Registers
    frame += struct.pack(">HH", address, count)
    frame += crc16(frame)

    # TCP socket
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.settimeout(2)
    s.connect((MODBUS_HOST, MODBUS_PORT))
    s.send(frame)

    # Response
    response = s.recv(256)
    s.close()

    # Validate minimum length
    if len(response) < 5:
        raise Exception("Invalid response length")

    # Validate CRC
    data = response[:-2]
    crc_received = response[-2:]
    crc_calc = crc16(data)
    if crc_received != crc_calc:
        raise Exception("CRC mismatch")

    # Byte count
    byte_count = response[2]
    if byte_count != count * 2:
        raise Exception("Unexpected byte count")

    # Extract registers
    registers = []
    for i in range(count):
        hi = response[3 + i*2]
        lo = response[4 + i*2]
        registers.append((hi << 8) | lo)

    return registers

# ---------------------------------------------------------
# Poll‑Loop
# ---------------------------------------------------------

last_values = {}

while True:
    # Auto‑Reload wenn config.yaml geändert wurde
    current_mtime = os.path.getmtime(CONFIG_FILE)
    if current_mtime != last_mtime:
        logging.info("Config changed, restarting...")
        mqttc.loop_stop()
        exit(0)

    for reg in REGISTERS:
        addr = reg["addr"]
        reg_type = reg["type"]
        factor = reg["factor"]
        length = 2 if reg_type == "uint32" else 1

        try:
            regs = read_holding_registers_rtu_tcp(UNIT_ID, addr, length)

            if reg_type == "int16":
                value = struct.unpack(">h", struct.pack(">H", regs[0]))[0]
            elif reg_type == "uint16":
                value = regs[0]
            elif reg_type == "uint32":
                value = (regs[0] << 16) | regs[1]
            else:
                continue

            value *= factor

            # Rundung basierend auf config.yaml
            decimals = reg.get("decimals", None)
            if decimals is not None:
                value = round(value, decimals)

            topic = f"{BASE_TOPIC}/register/{addr}"

            # Nur senden, wenn sich der Wert geändert hat
            if addr in last_values and last_values[addr] == value:
                continue  # Wert unverändert → nicht senden

            last_values[addr] = value
            mqttc.publish(topic, value)
            #logging.info(f"Published {topic} = {value}")

        except Exception as e:
            logging.error(f"Error reading register {addr}: {e}")

        time.sleep(0.2)

    time.sleep(POLL_INTERVAL)

/opt/modbus-mqtt/config.yaml

modbus:
  host: "192.168.88.101"
  port: 8899
  unit_id: 1

mqtt:
  host: "192.168.1.251"
  port: 1883
  base_topic: "modbus/inverter"
  username: "mqtt_user"
  password: "mqtt_passwort"

poll_interval: 20

registers:
  - addr: 1199
    name: "ActivePower_Load_Sys"
    type: "uint16"
    factor: 0.01
    decimals: 2

  - addr: 1160
    name: "ActivePower_PCC_Total"
    type: "int16"
    factor: 0.01
    decimals: 1

  - addr: 1476
    name: "Power_PV_Total"
    type: "uint16"
    factor: 0.1
    decimals: 1

  - addr: 1542
    name: "Power_Bat1"
    type: "int16"
    factor: 0.01
    decimals: 2

  - addr: 1544
    name: "SOC_Bat1"
    type: "uint16"
    factor: 1
    decimals: 0

  - addr: 1668
    name: "PV_Generation_Today"
    type: "uint32"
    factor: 0.01
    decimals: 2

Beim Waveshare musste ich auf "Transparent" (anstelle von "modbus TCP <=> modbus RTU") stellen.
In der config seht ihr auch, dass LXCs und der Waveshare nicht im gleichen Netzwerk sind. WAN von 192.168.88.0 (MikroTik Router) hängt am Netz 192.168.1.0 (Fritzbox). Da hab ich eine Route definiert, damit man vom einen ins andere Netz zugreifen kann.
Die IPs, Ports, Usernames und Passwörter müsst ihr natürlich auf eure Gegebenheiten anpassen.

In der /etc/systemd/system/modbus-mqtt.service

[Unit]
Description=Modbus RTU over TCP to MQTT Gateway
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
User=root
WorkingDirectory=/opt/modbus-mqtt
ExecStart=/usr/bin/env python3 /opt/modbus-mqtt/modbus_tcp_rtu.py
Restart=always
RestartSec=5
Environment=PYTHONUNBUFFERED=1

[Install]
WantedBy=multi-user.target

Wenn alles fertig ist, eingeben:

sudo systemctl daemon-reload
sudo systemctl enable modbus-mqtt.service
sudo systemctl start modbus-mqtt.service

Die Daten werden nun per MQTT an den ioBroker gesendet.
Der Datenpunkt sieht dann etwa so aus:

mqtt.0.modbus.inverter.register.{Registeradresse}

[Homoran]

@spicer sagte in Sofar Solar HYD10 KTL Wechselrichter an modbus Adapter:

Beim Waveshare musste ich auf "Transparent" (anstelle von "modbus TCP <=> modbus RTU") stellen.

das ist, warum mir ein solcher Konverter zu komplex ist.
Dann noch bei gleichem Hersteller unterschiedliche Einstellungen braucht....

@spicer sagte in Sofar Solar HYD10 KTL Wechselrichter an modbus Adapter:

dass LXCs und der Waveshare nicht im gleichen Netzwerk sind.

davon war bisher keine Rede

[spicer]

@Homoran sagte in Sofar Solar HYD10 KTL Wechselrichter an modbus Adapter:

davon war bisher keine Rede

Das hat ja auch nichts mit den "Hängern" zutun ;)
Der Adapter läuft ja ein paar Stunden gut.

[Homoran]

@spicer sagte in Sofar Solar HYD10 KTL Wechselrichter an modbus Adapter:

Das hat ja auch nichts mit den "Hängern" zutun ;)

sicher?

der socket wird angemeckert!

[spicer]

@Homoran sagte in Sofar Solar HYD10 KTL Wechselrichter an modbus Adapter:

@spicer sagte in Sofar Solar HYD10 KTL Wechselrichter an modbus Adapter:

Das hat ja auch nichts mit den "Hängern" zutun ;)

sicher?

der socket wird angemeckert!

Ja eben. Das hab ich weiter oben ja schon festgehalten.
Da konnte mir niemand einen Rat geben.
Darum hab ich dann ein eigenes Script erstellt ;)
Und das läuft seit der Erstellung stabil.