ich brauche etwas Nachhilfe mit Node Red und RS232

andibr

Mein Flow sieht so aus: Bildschirmfoto vom 2026-08-14 19-32-46.png

Manchmal funktioniert es richtig und manchmal eben nicht. Ich habe mir überlegt, ob evt. daran liegen könnte, dass der Port nach der Abfrage nicht geschlossen wird?
Wenn ich im Minicom den Connect offen stehen lasse ist mir bis jetzt nicht aufgefallen, dass da keine Antwort kommen würde.

Im Log sieht es dann so aus:
Bildschirmfoto vom 2026-08-14 19-38-16.png

Wenn ich dann den Flow verändere und neu deploye funktioniert es eine Weile ganz gut und plötzlich geht es wieder nicht mehr. Bis jetzt habe ich noch kein Muster gefunden.

Ich habe da noch alte USR-TCP232-T2 Adapter rumliegen
Bildschirmfoto vom 2026-08-14 19-43-18.png

Allenfalls könnte man damit ja auch etwas machen und hätte dann einfach einen Netzwerk-Port zum abfragen, aber ich denke das Thema mit dem Timeout wird gleich bleiben. So wie ich es verstehe kommt der Timeout nicht vom Port sondern ist ein "nicht reagieren des BMS".

OliverIO

@andibr

Als erstes muss man rausfinden an welcher Node der Fehler entsteht.
Dann in dieser function node etwas debug code einbauen
Damit man sieht was für ein datentyp da ankommt und was für Inhaltsangaben ankommt.
Dann muss man bewerten wie man damit umgeht.
Wenn es sonst funktioniert, dann kann man das einfach durch Code ausfiltern, also keine msg zurückgeben, so das die nachfolgenden nodes nicht getriggert werden.

Nur mit einem Bild vom Flow kann niemand was anfangen.
Mit mehr, kann ich erst Ende nächster woche weitermachen

andibr

@OliverIO ich versuche morgen noch etwas mehr raus zu holen. Eben es verwirrt mich das es manchmal durchläuft und dann plötzlich nicht mehr.
Für mich als Laie sieht es irgendwie so aus, wie wenn das BMS irgendwie auf was warten würde und daher nicht mehr.

peterfido

Statt des Screenshots am besten den Node-Red-Export hier in Code-Tags posten. Dann kann man sehen, ob man helfen kann.

andibr

@peterfido

Hier ist der ganze Flow, den ich unterdessen zusammen habe:

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        "func": "const battery = msg.payload;\n\nif (!battery || battery.battery === undefined) {\n    node.error(\"Ungültiges Battery-Objekt\", msg);\n    return null;\n}\n\nconst batteryId = battery.battery;\n\nconst states = [\n    {\n        id: \"voltage\",\n        value: battery.volt,\n        name: \"Voltage\",\n        role: \"value.voltage\",\n        type: \"number\",\n        readonly: true,\n        unit: \"mV\",\n        min: 0\n    },\n    {\n        id: \"temperature\",\n        value: battery.tempr / 1000,\n        name: \"Temperature\",\n        role: \"value.temperature\",\n        type: \"number\",\n        readonly: true,\n        unit: \"°C\"\n    },\n    {\n        id: \"baseState\",\n        value: battery.baseState,\n        name: \"Base State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"voltageState\",\n        value: battery.voltState,\n        name: \"Voltage State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"currentState\",\n        value: battery.currState,\n        name: \"Current State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"temperatureState\",\n        value: battery.tempState,\n        name: \"Temperature State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"charge\",\n        value: battery.coulomb,\n        name: \"Charge\",\n        role: \"value.battery\",\n        type: \"number\",\n        readonly: true,\n        unit: \"%\",\n        min: 0,\n        max: 100\n    },\n    {\n        id: \"capacity\",\n        value: battery.capacity,\n        name: \"Capacity\",\n        role: \"value\",\n        type: \"number\",\n        readonly: true,\n        unit: \"mAh\",\n        min: 0\n    }\n];\n\nconst messages = [];\n\nfor (const state of states) {\n    const out = {\n        topic: `0_userdata.0.pytes.06.${batteryId}.${state.id}`,\n        payload: state.value,\n\n        stateName: state.name,\n        stateRole: state.role,\n        stateType: state.type,\n        stateReadonly: state.readonly\n    };\n\n    if (state.unit !== undefined) {\n        out.stateUnit = state.unit;\n    }\n\n    if (state.min !== undefined) {\n        out.stateMin = state.min;\n    }\n\n    if (state.max !== undefined) {\n        out.stateMax = state.max;\n    }\n\n    messages.push(out);\n}\n\nreturn [messages];",
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        "name": "",
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        "y": 900,
        "wires": [
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                "56d333a3d08a8b60"
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        "type": "function",
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        "id": "8dc1347bba1166d9",
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        "func": "const battery = msg.payload;\n\nif (!battery || battery.battery === undefined) {\n    node.error(\"Ungültiges Battery-Objekt\", msg);\n    return null;\n}\n\nconst batteryId = battery.battery;\n\nconst states = [\n    {\n        id: \"voltage\",\n        value: battery.volt,\n        name: \"Voltage\",\n        role: \"value.voltage\",\n        type: \"number\",\n        readonly: true,\n        unit: \"mV\",\n        min: 0\n    },\n    {\n        id: \"temperature\",\n        value: battery.tempr / 1000,\n        name: \"Temperature\",\n        role: \"value.temperature\",\n        type: \"number\",\n        readonly: true,\n        unit: \"°C\"\n    },\n    {\n        id: \"baseState\",\n        value: battery.baseState,\n        name: \"Base State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"voltageState\",\n        value: battery.voltState,\n        name: \"Voltage State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"currentState\",\n        value: battery.currState,\n        name: \"Current State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"temperatureState\",\n        value: battery.tempState,\n        name: \"Temperature State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"charge\",\n        value: battery.coulomb,\n        name: \"Charge\",\n        role: \"value.battery\",\n        type: \"number\",\n        readonly: true,\n        unit: \"%\",\n        min: 0,\n        max: 100\n    },\n    {\n        id: \"capacity\",\n        value: battery.capacity,\n        name: \"Capacity\",\n        role: \"value\",\n        type: \"number\",\n        readonly: true,\n        unit: \"mAh\",\n        min: 0\n    }\n];\n\nconst messages = [];\n\nfor (const state of states) {\n    const out = {\n        topic: `0_userdata.0.pytes.07.${batteryId}.${state.id}`,\n        payload: state.value,\n\n        stateName: state.name,\n        stateRole: state.role,\n        stateType: state.type,\n        stateReadonly: state.readonly\n    };\n\n    if (state.unit !== undefined) {\n        out.stateUnit = state.unit;\n    }\n\n    if (state.min !== undefined) {\n        out.stateMin = state.min;\n    }\n\n    if (state.max !== undefined) {\n        out.stateMax = state.max;\n    }\n\n    messages.push(out);\n}\n\nreturn [messages];",
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        "x": 890,
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        "wires": [
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                "dfa2e714a883320c"
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    {
        "id": "dfa2e714a883320c",
        "type": "function",
        "z": "26771494c726dd85",
        "name": "convert to msgs",
        "func": "const text = msg.payload;\n\nif (typeof text !== \"string\") {\n    node.error(\"msg.payload ist kein String\", msg);\n    return null;\n}\n\n// In einzelne Zeilen zerlegen\nconst lines = text\n    .split(/\\r?\\n/)\n    .map(line => line.trim())\n    .filter(line => line !== \"\");\n\n// Nur Zeilen berücksichtigen, die mit einer Batterienummer beginnen\nconst dataLines = lines.filter(line => /^\\d+\\s/.test(line));\n\nconst messages = [];\n\nfor (const line of dataLines) {\n\n    // Spalten sind durch mindestens 2 Leerzeichen getrennt\n    const columns = line.split(/\\s{2,}/);\n\n    if (columns.length < 9) {\n        node.warn(\"Zeile konnte nicht verarbeitet werden: \" + line);\n        continue;\n    }\n\n    const battery = {\n        battery: Number(columns[0]),\n        volt: Number(columns[1]),\n        tempr: Number(columns[2]),\n        baseState: columns[3],\n        voltState: columns[4],\n        currState: columns[5],\n        tempState: columns[6],\n        coulomb: Number(columns[7].replace(\"%\", \"\")),\n        capacity: Number(columns[8].replace(/[^\\d]/g, \"\"))\n    };\n\n    messages.push({\n        ...msg,\n        payload: battery\n    });\n}\n\n// Alle Nachrichten nacheinander über denselben Ausgang senden\nreturn [messages];",
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        "id": "4127ce3ea3ebf45b",
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        "func": "const battery = msg.payload;\n\nif (!battery || battery.battery === undefined) {\n    node.error(\"Ungültiges Battery-Objekt\", msg);\n    return null;\n}\n\nconst batteryId = battery.battery;\n\nconst states = [\n    {\n        id: \"voltage\",\n        value: battery.volt,\n        name: \"Voltage\",\n        role: \"value.voltage\",\n        type: \"number\",\n        readonly: true,\n        unit: \"mV\",\n        min: 0\n    },\n    {\n        id: \"temperature\",\n        value: battery.tempr / 1000,\n        name: \"Temperature\",\n        role: \"value.temperature\",\n        type: \"number\",\n        readonly: true,\n        unit: \"°C\"\n    },\n    {\n        id: \"baseState\",\n        value: battery.baseState,\n        name: \"Base State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"voltageState\",\n        value: battery.voltState,\n        name: \"Voltage State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"currentState\",\n        value: battery.currState,\n        name: \"Current State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"temperatureState\",\n        value: battery.tempState,\n        name: \"Temperature State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"charge\",\n        value: battery.coulomb,\n        name: \"Charge\",\n        role: \"value.battery\",\n        type: \"number\",\n        readonly: true,\n        unit: \"%\",\n        min: 0,\n        max: 100\n    },\n    {\n        id: \"capacity\",\n        value: battery.capacity,\n        name: \"Capacity\",\n        role: \"value\",\n        type: \"number\",\n        readonly: true,\n        unit: \"mAh\",\n        min: 0\n    }\n];\n\nconst messages = [];\n\nfor (const state of states) {\n    const out = {\n        topic: `0_userdata.0.pytes.08.${batteryId}.${state.id}`,\n        payload: state.value,\n\n        stateName: state.name,\n        stateRole: state.role,\n        stateType: state.type,\n        stateReadonly: state.readonly\n    };\n\n    if (state.unit !== undefined) {\n        out.stateUnit = state.unit;\n    }\n\n    if (state.min !== undefined) {\n        out.stateMin = state.min;\n    }\n\n    if (state.max !== undefined) {\n        out.stateMax = state.max;\n    }\n\n    messages.push(out);\n}\n\nreturn [messages];",
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        "name": "debug 11",
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        "complete": "false",
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    {
        "id": "d031dd424e7b1ff2",
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        "serialport": "/dev/serial/by-id/usb-FTDI_USB_Serial_Converter_FTFS8I5L-if00-port0",
        "serialbaud": "115200",
        "databits": 8,
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Es ist äusserst interessant, ich habe heute mal die Schnittstellen durchreichung in den Iobroker Proxmox LXC neu, mit den offiziellen Proxmox Werkzeugen neu gemacht. Dabei ist mir aufgefallen, das der Flow mehrere male sauber läuft, plötzlich kommt die Meldung:

node-red.0
	2026-08-15 16:54:00.757	error	Node-RED: 15 Aug 16:54:00 - [error] [function:convert to msgs] msg.payload ist kein String

und auch im Flow wird dann beim entsprechenden Node aus einem "verbunden" ein "Timeout". Nach einem deaktivieren des ganzen Flow und deploy und anschliessendem aktivieren und deploy läuft er wieder ein paar Stunden ohne irgendwelche Probleme. Beim Fehler kommt scheinbar einfach keine Antwort mehr und der "function-Node" wirft dann den Fehler raus. Ist ja richtig und auch verständlich.

Kann es sein, dass es mit meiner vervielfachung auch quasi mehrere offenen Schnittstellen Task gibt?

Ich habe mich gefragt ob es allenfalls besser wäre trigger-Node so umzubauen das er eben nicht einfach nur den Text sendet, sondern das er quasi eine Liste mit den Texten abarbeitet. Oder das nach dem function Node ein zusätzlicher Node angestossen würde der die Schnittstelle schliesst? Nur da habe ich bis jetzt keinerlei Hinweise gefunden wie man eine solche serielle Schnittstelle schliessen kann.

peterfido

Ich habe das mangels Batterie nicht testen können.

Das Skript geht die Batterien nach und nach durch und startet automatisch wieder, wenn ich die Verbindung unterbreche.

Den Comport musste ich natürlich umbiegen.

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        "id": "79724f85531596e4",
        "type": "function",
        "z": "26771494c726dd85",
        "name": "convert to msgs",
        "func": "const text = msg.payload;\n\nif (typeof text !== \"string\") {\n    node.error(\"msg.payload ist kein String\", msg);\n    return null;\n}\n\n// In einzelne Zeilen zerlegen\nconst lines = text\n    .split(/\\r?\\n/)\n    .map(line => line.trim())\n    .filter(line => line !== \"\");\n\n// Nur Zeilen berücksichtigen, die mit einer Batterienummer beginnen\nconst dataLines = lines.filter(line => /^\\d+\\s/.test(line));\n\nconst messages = [];\n\nfor (const line of dataLines) {\n\n    // Spalten sind durch mindestens 2 Leerzeichen getrennt\n    const columns = line.split(/\\s{2,}/);\n\n    if (columns.length < 9) {\n        node.warn(\"Zeile konnte nicht verarbeitet werden: \" + line);\n        continue;\n    }\n\n    const battery = {\n        battery: Number(columns[0]),\n        volt: Number(columns[1]),\n        tempr: Number(columns[2]),\n        baseState: columns[3],\n        voltState: columns[4],\n        currState: columns[5],\n        tempState: columns[6],\n        coulomb: Number(columns[7].replace(\"%\", \"\")),\n        capacity: Number(columns[8].replace(/[^\\d]/g, \"\"))\n    };\n\n    messages.push({\n        ...msg,\n        payload: battery\n    });\n}\n\n// Alle Nachrichten nacheinander über denselben Ausgang senden\nreturn [messages];",
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        "func": "const battery = msg.payload;\n\nif (!battery || battery.battery === undefined) {\n    node.error(\"Ungültiges Battery-Objekt\", msg);\n    return null;\n}\n\nconst batteryId = battery.battery;\n\nconst states = [\n    {\n        id: \"voltage\",\n        value: battery.volt,\n        name: \"Voltage\",\n        role: \"value.voltage\",\n        type: \"number\",\n        readonly: true,\n        unit: \"mV\",\n        min: 0\n    },\n    {\n        id: \"temperature\",\n        value: battery.tempr / 1000,\n        name: \"Temperature\",\n        role: \"value.temperature\",\n        type: \"number\",\n        readonly: true,\n        unit: \"°C\"\n    },\n    {\n        id: \"baseState\",\n        value: battery.baseState,\n        name: \"Base State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"voltageState\",\n        value: battery.voltState,\n        name: \"Voltage State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"currentState\",\n        value: battery.currState,\n        name: \"Current State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"temperatureState\",\n        value: battery.tempState,\n        name: \"Temperature State\",\n        role: \"text\",\n        type: \"string\",\n        readonly: true\n    },\n    {\n        id: \"charge\",\n        value: battery.coulomb,\n        name: \"Charge\",\n        role: \"value.battery\",\n        type: \"number\",\n        readonly: true,\n        unit: \"%\",\n        min: 0,\n        max: 100\n    },\n    {\n        id: \"capacity\",\n        value: battery.capacity,\n        name: \"Capacity\",\n        role: \"value\",\n        type: \"number\",\n        readonly: true,\n        unit: \"mAh\",\n        min: 0\n    }\n];\n\nconst messages = [];\n\nfor (const state of states) {\n    const out = {\n        topic: `0_userdata.0.pytes.01.${batteryId}.${state.id}`,\n        payload: state.value,\n\n        stateName: state.name,\n        stateRole: state.role,\n        stateType: state.type,\n        stateReadonly: state.readonly\n    };\n\n    if (state.unit !== undefined) {\n        out.stateUnit = state.unit;\n    }\n\n    if (state.min !== undefined) {\n        out.stateMin = state.min;\n    }\n\n    if (state.max !== undefined) {\n        out.stateMax = state.max;\n    }\n\n    messages.push(out);\n}\n\nreturn [messages];",
        "outputs": 1,
        "timeout": 0,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
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        "name": "debug 14",
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        "tosidebar": true,
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        "statusType": "auto",
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        "type": "comment",
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        "name": "Serial-Ports",
        "info": "/dev/serial/by-id/usb-Prolific_Technology_Inc._USB-Serial_Controller-if00-port0\n\n/dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-port0",
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        "z": "26771494c726dd85",
        "name": "",
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        "timeoutUnits": "seconds",
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        "rateUnits": "second",
        "randomFirst": "1",
        "randomLast": "5",
        "randomUnits": "seconds",
        "drop": false,
        "allowrate": false,
        "outputs": 1,
        "x": 300,
        "y": 80,
        "wires": [
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        "id": "8979945491174ae1",
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        "z": "26771494c726dd85",
        "name": "naechster",
        "func": "const batts =[\"bat 1\", \"bat 2\", \"bat 3\", \"bat 4\", \"bat 5\", \"bat 6\", \"bat 7\",\"bat 8\"];\n\nflow.set(\"batts\", batts);\n\nvar pos = parseInt(flow.get(\"pos\"));\npos++;\nif(pos > batts.length -1){pos=0}\nmsg.payload = batts[pos];\nflow.set (\"pos\", pos);\n\nreturn msg;",
        "outputs": 1,
        "timeout": 0,
        "noerr": 0,
        "initialize": "// Der Code hier wird ausgeführt,\n// wenn der Node gestartet wird\nflow.set(\"pos\", 0);\n",
        "finalize": "",
        "libs": [],
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        "y": 80,
        "wires": [
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        "wires": [
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        "name": "",
        "property": "payload",
        "propertyType": "msg",
        "rules": [
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                "vt": "string"
            },
            {
                "t": "else"
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        "checkall": "true",
        "repair": false,
        "outputs": 2,
        "x": 750,
        "y": 80,
        "wires": [
            [
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                "p": "payload",
                "pt": "msg",
                "to": "{\"enabled\":true}",
                "tot": "json"
            }
        ],
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        "property": "",
        "from": "",
        "to": "",
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        "x": 630,
        "y": 220,
        "wires": [
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                "478993d3b5047088",
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    {
        "id": "b28980471e986893",
        "type": "change",
        "z": "26771494c726dd85",
        "name": "Schließe Verbindung",
        "rules": [
            {
                "t": "set",
                "p": "payload",
                "pt": "msg",
                "to": "{\"enabled\":false}",
                "tot": "json"
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        ],
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        "property": "",
        "from": "",
        "to": "",
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        "x": 640,
        "y": 180,
        "wires": [
            [
                "478993d3b5047088"
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    },
    {
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        "type": "delay",
        "z": "26771494c726dd85",
        "name": "",
        "pauseType": "delay",
        "timeout": "4",
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        "nbRateUnits": "1",
        "rateUnits": "second",
        "randomFirst": "1",
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        "wires": [
            [
                "5a79550b570ff05d"
            ]
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    {
        "id": "ecfde46ecc908741",
        "type": "inject",
        "z": "26771494c726dd85",
        "name": "Test",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
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        "type": "serial-port",
        "name": "SerialPort",
        "serialport": "/dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-port0",
        "serialbaud": "115200",
        "databits": "8",
        "parity": "none",
        "stopbits": "1",
        "waitfor": "",
        "dtr": "none",
        "rts": "none",
        "cts": "none",
        "dsr": "none",
        "newline": "250",
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        "out": "time",
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    }
]

OliverIO

@andibr

Ich habe mir nochmal das Bild mit dem Node Flow und dem debug Screen rechts angeschaut.
Da gibt die debug node undefined aus.
Das ist natürlich kein String.
Dann müsste an den Anfang der function node sowas rein

if (msg.payload == undefined) return;

Das sorgt dafür das keine neue msg generiert wird, wenn keine auswertbare Information kommt.
Das filtert dann das aus.

Kann das leider nicht testen, da aktuell kein Node red verfügbar

andibr

@OliverIO
Danke für die Analyse und der grundsätzlichen Bestätigung, dass es eigentlich richtig ist und auch funktionieren sollte.
Unterdessen ist es so, dass ich den wiederholzykluss auf 20min gestellt habe und zwischen jeder Anfrage 1 Minute warte. Zusätzlich habe ich ja die udev-Regel entfernt und das Portweiterleiten mit den Proxmox eigenen Mitteln gemacht. Es läuft nun seit 25h so, und Fehler mit keinem String ist noch 2x aufgetreten, hat sich unterdessen aber sogar selber gefixt und läuft seither ohne erkennbar Fehlermeldungen durch.
Weil es ja so merkwürdig reagiert hat, habe ich den Pylontechadapter nochmals installiert und die neue Schnittstelle eingerichtet. Nach sehr langem warten wurde der Adapter sogar grün und er hat tatsächlich die BMS Infos rausgelesen, aber die Zelleninfos kamm nicht.

Ich habe zwar keine Ahnung wie das Pytes BMS Tool das wirklich macht, aber ich habe den Eindruck, dass der Abfragezyklus nicht mehr als 1x pro Minute gestartet werden darf. Das Pytes Tool bringt alle infis eigentlich recht schnell.
Bei meinem 12V System mit den DALI ist es so beschrieben, dass man nur 1x pro Minute Abfragen, kann weil der Prozessor sonst seine Aufgabe nicht machen kann.

Aktuell läuft es und ich beobachte das sehr intensiv, weil ich der Sache noch nicht ganz traue.

mickym

@OliverIO Wie meist, kann man das aber auch mit einer switch Node filtern und braucht dazu kein Javascript.

OliverIO

@mickym

Theoretisch schon
Bin gerade nicht am Rechner
Weiß nicht was man da auswählen kann
Irgend was mit

Ist
Oder
Ist nicht
Oder
Ist vom typ

Und bei Typ
Undefined

Dann einen Ausgang entsprechend der Logik verdrahten so das die undefined Message ins Leere läuft

mickym

@OliverIO Ich habe doch einen Screenshot gemacht. So kommen nur Strings durch. Kein undefined, Numbers etc., aber ich will mich da nicht in Eure Diskussion einmischen. Das ist ja nur ein Nebenschauplatz

OliverIO

@mickym
Wenn es String ist
Könnte auch
buffer
Sein
Kann mich nicht mehr erinnern

mickym

@OliverIO Man kann auch undefined an Ausgang 1 schicken und ins Leere laufen lassen und den Rest weiterverarbeiten:

peterfido

So wie @mickym schreibt, ist es doch in meinem Beispiel-Code weiter oben.

andibr

Soweit ich das bis jetzt begriffen habe, gibt es mehrere Probleme mit meinem Flow:

Das BMS sendet irgendwann plötzlich nicht mehr korrekte Daten.
Der Flow verliert bei mir nach ca.36h Betrieb irgendwie die Synchronisation und blockiert bei mir irgendwie den ganzen Iobroker. Es entstehen hunderte Fehlermeldungen mit Bezug zum Node Red.
Scheinbar gibt es da auch ein Problem beim so Datenschreiben in die Datenpunkte. Weil zu viele Daten angeblich im Node Red im Cash hängenbleiben und nicht gelöscht werden ( zumindest behauptet ein KI das).
Ich habe irgendwie kapituliert, weil ich nicht begreife wie das zu machen ist

Ich habe mir auch überlegt, ob man allenfalls mit der msg.payload gleich eine Globale Variable schreiben könnte und danach diesen Inhalt im Node der die einzelne Listen Einträge erstellt, im Topic einsetzen. Konkret stelle ich mir das so vor: beim payload "bat 1" soll die Varaible auf den Wert "1" gesetzt. Und dann als Block 1 in die Topic eingesetzt werden. Bei "bat 2" dann eine "2" etc. Damit könnte man alle abfragen eben über den gleichen RS232 Node machen und hätte auch da nicht 8stk.

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