CMi4110 Kälte

Device Profile for Tesenso IoT Cloud

592B

cmi4110kaelte.json

Decoder/Payload Converter for Tesenso IoT Cloud

https://github.com/Tesenso-GmbH/Device-Decoder/blob/main/Elvaco_CMi4110_K%C3%A4lte.js

//V1.0, 10.08.2021,DS

if (msg.data) {
    var decoded = decodeFromHex(msg.data);
    decoded.ts = msg.ts;
    decoded.rssi = msg.rssi;
    decoded.snr = msg.snr;
    decoded.toa = msg.toa;
    decoded.frequency = msg.frequency;
    decoded.dr = msg.dr;
    decoded.bat = decodeBattery(msg.bat);
    decoded.hex = msg.data;

    return {
        msg: decoded,
        metadata: metadata,
        msgType: msgType
    };
} else {
    return {
        msg: msg,
        metadata: metadata,
        msgType: msgType
    };
}

function decodeFromHex(data) {
    
    var telemetry = {};

    if (data.substr(0,2) == "00") {
        if (data.substr(2, 4) == "0c07") {
            telemetry.coldMeterEnergy = parseFloat(data.substr(12,2)+data.substr(10,2)+data.substr(8,2)+data.substr(6,2))/100;
        }
        if (data.substr(14, 4) == "0c15") {
            telemetry.coldMeterVolume = parseFloat(data.substr(24,2)+data.substr(22,2)+data.substr(20,2)+data.substr(18,2))/10;
        }
        if (data.substr(26, 4) == "0b2d") {
            telemetry.power = parseFloat(data.substr(34,2)+data.substr(32,2)+data.substr(30,2))/10;
        }
        if (data.substr(36, 4) == "0b3b") {
            var dataString = (data.substr(44,2)+data.substr(42,2)+data.substr(40,2));
            var flowRate = parseFloat(dataString.substr(1,5))/1000;
            if (dataString.substr(0,1) == "f"){
                flowRate = -1*flowRate;
            }
            telemetry.flowRate = flowRate;
        }
        if (data.substr(46, 4) == "0a5a") {
            dataString = (data.substr(52,2)+data.substr(50,2));
            var returnflowTemperature = parseFloat(dataString.substr(1,5))/10;
            if (dataString.substr(0,1) == "f"){
                returnflowTemperature = -1*returnflowTemperature;
            }
            telemetry.returnflowTemperature = returnflowTemperature;
        }
        if (data.substr(54, 4) == "0a5e") {
            dataString = (data.substr(60,2)+data.substr(58,2));
            var FlowTemperature = parseFloat(dataString.substr(1,5))/10;
            if (dataString.substr(0,1) == "f"){
                FlowTemperature = -1*FlowTemperature;
            }
            telemetry.FlowTemperature = FlowTemperature;
        }

    }

    return telemetry;
}

function decodeBattery(byte) {
    if (byte == 0) {
        return 'External power source';
    } else if (byte > 0 && byte < 255) {
        return byte / 254 * 100;
    } else {
        return 'Unknown battery state';
    }
}

Device Labels

in manual	dataKey	dataType	dataFormat
Energie	coldMeterEnergy	telemetry	long
Volumen	coldMeterVolume	telemetry	long
Leistung	power	telemetry	long
Durchfluss	flowRate	telemetry	long
Vorlauftemperatur	flowTemperature	telemetry	long
Rücklauftemperatur	returnFlowTemperature	coldMeterEnergy	long

Uplink documentation

sample Uplink message

{
    "cmd": "gw",
    "seqno": 69998,
    "EUI": "94193A01020000D0",
    "ts": 1662548610229,
    "fcnt": 2794,
    "port": 2,
    "freq": 867300000,
    "toa": 107,
    "dr": "SF7 BW125 4/5",
    "ack": false,
    "gws": [{
        "rssi": -45,
        "snr": 10,
        "ts": 1662548610229,
        "time": "2022-09-07T11:29:42.123146Z",
        "gweui": "000800FFFF4A4CB7",
        "ant": 0,
        "lat": 47.36227823944397,
        "lon": 8.589862106445304
    }],
    "bat": 254,
    "data": "000c07320301000c15856337000b2d0000000b3b1000f00a5a33020a5e27020c786860317002fd170000",
    "_id": "63187a82a43493046323a2c1"
}

sample decoded Uplink

{
    "msg": {
        "coldMeterEnergy": 103.32,
        "coldMeterVolume": 37638.5,
        "power": 0,
        "flowRate": -0.01,
        "returnflowTemperature": 23.3,
        "FlowTemperature": 22.7,
        "ts": 1661262701281,
        "rssi": -80,
        "snr": 9.8,
        "toa": 61,
        "frequency": 867700000,
        "dr": "SF7 BW125 4/5",
        "bat": "External power source",
        "hex": "000c07320301000c15856337000b2d0000000b3b1000f00a5a33020a5e27020c786860317002fd170000"
    },
    "metadata": {
        "deviceType": "default",
        "deviceName": "Test Device",
        "ts": "1662549070536"
    },
    "msgType": "POST_TELEMETRY_REQUEST"
}

Downlink documentation

All Downlinks shall be sent on Port 3