Micronics Heat Meters

Simply Modbus Testing

Node-RED

Registers

[
    {
        "register": "7",
        "reading": "dat.velocity",
        "multiplier": "100",
        "datatype": "int16",
        "rlength": 2,
        "units": "m/s"
    },
    {
        "register": "9",
        "reading": "dat.flow",
        "multiplier": "100",
        "datatype": "int16",
        "rlength": 2,
        "units": "m3/h"
    },
    {
        "register": "11",
        "reading": "dat.power",
        "multiplier": "100",
        "datatype": "IEEE754",
        "rlength": 2,
        "units": "kW"
    },
    {
        "register": "13",
        "reading": "dat.energy",
        "multiplier": "100",
        "datatype": "IEEE754",
        "rlength": 2,
        "units": "kWh"
    },
    {
        "register": "15",
        "reading": "dat.tHot",
        "multiplier": "100",
        "datatype": "IEEE754",
        "rlength": 2,
        "units": "°C"
    },
    {
        "register": "17",
        "reading": "dat.tCold",
        "multiplier": "100",
        "datatype": "IEEE754",
        "rlength": 2,
        "units": "°C"
    },
    {
        "register": "19",
        "reading": "dat.tDiff",
        "multiplier": "100",
        "datatype": "IEEE754",
        "rlength": 2,
        "units": "°C"
    },
    {
        "register": "21",
        "reading": "dat.volume",
        "multiplier": "100",
        "datatype": "IEEE754",
        "rlength": 2,
        "units": "m3"
    }
]

Node-RED Flow

[
    {
        "id": "b2d492ed.c4def",
        "type": "subflow",
        "name": "rbe 3min",
        "info": "",
        "category": "",
        "in": [
            {
                "x": 80,
                "y": 160,
                "wires": [
                    {
                        "id": "ee023f13.5958c"
                    }
                ]
            }
        ],
        "out": [
            {
                "x": 460,
                "y": 160,
                "wires": [
                    {
                        "id": "61b66a77.aec334",
                        "port": 0
                    }
                ]
            }
        ],
        "env": []
    },
    {
        "id": "61b66a77.aec334",
        "type": "switch",
        "z": "b2d492ed.c4def",
        "name": "",
        "property": "reset",
        "propertyType": "msg",
        "rules": [
            {
                "t": "null"
            }
        ],
        "checkall": "false",
        "repair": false,
        "outputs": 1,
        "x": 330,
        "y": 160,
        "wires": [
            []
        ]
    },
    {
        "id": "23f9ad60.8b4b82",
        "type": "change",
        "z": "b2d492ed.c4def",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "reset",
                "pt": "msg",
                "to": "1",
                "tot": "str"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 220,
        "y": 120,
        "wires": [
            [
                "ee023f13.5958c"
            ]
        ]
    },
    {
        "id": "44580c0c.eb7c04",
        "type": "inject",
        "z": "b2d492ed.c4def",
        "name": "",
        "repeat": "180",
        "crontab": "",
        "once": false,
        "onceDelay": "60",
        "topic": "",
        "payload": "",
        "payloadType": "date",
        "x": 210,
        "y": 80,
        "wires": [
            [
                "23f9ad60.8b4b82"
            ]
        ]
    },
    {
        "id": "ee023f13.5958c",
        "type": "rbe",
        "z": "b2d492ed.c4def",
        "name": "",
        "func": "rbe",
        "gap": "",
        "start": "",
        "inout": "out",
        "property": "payload",
        "x": 200,
        "y": 160,
        "wires": [
            [
                "61b66a77.aec334"
            ]
        ]
    },
    {
        "id": "9f18bf08.c2a65",
        "type": "tab",
        "label": "Micronics Modbus",
        "disabled": false,
        "info": "https://www.binaryconvert.com/convert_signed_int.html?hexadecimal=000019FD"
    },
    {
        "id": "19182344.741c9d",
        "type": "function",
        "z": "9f18bf08.c2a65",
        "name": "",
        "func": "//if(Buffer.from(msg.payload, 'ascii')[1]!==3) { return null; }\n\nfunction hex2bin(hex){\n    return (\"00000000\" + (parseInt(hex)).toString(2)).substr(-8);\n}\n\nfunction dec2bin(dec){\n  return (dec >>> 0).toString(2);\n}\n\nfunction Int2Float32(bytes) {\n    var sign = (bytes & 0x80000000) ? -1 : 1;\n    var exponent = ((bytes >> 23) & 0xFF) - 127;\n    var significand = (bytes & ~(-1 << 23));\n\n    if (exponent == 128)\n        return sign * ((significand) ? Number.NaN : Number.POSITIVE_INFINITY);\n\n    if (exponent == -127) {\n        if (significand === 0) return sign * 0.0;\n        exponent = -126;\n        significand /= (1 << 22);\n    } else significand = (significand | (1 << 23)) / (1 << 23);\n\n    return sign * significand * Math.pow(2, exponent);\n}\n\nvar msg2 = { \"payload\": Buffer.from(msg.payload, 'ascii') };\n\nmsg.address = msg.payload[0];\n//msg.register = (256 * msg.payload[2]) + msg.payload[3];\nmsg.register = flow.get(\"curreg\");\n\n\nvar minfo = flow.get(\"registers.r\" + msg.register) || null;\nvar dinfo = flow.get(\"devices.\" + msg.address) || null;\n\nif (!minfo) { return null; }\nif (!dinfo) { return null; }  \n\nif (minfo.datatype==\"bits\") {\n    \n    var oot = {};\n    var bits = minfo.items.split(\",\");\n    var bc=15;\n    for (var bit in bits) {\n    \n        var item = {};\n        item.payload = (256 * msg.payload[3]) + msg.payload[4];        \n        item.payload =   (\"00000000000000000\" + dec2bin(item.payload)).substr(-16);\n        item.payload =  item.payload.substr(bc,1);\n        \n        item.topic = dinfo.device + \"/\" + bits[bit].replace(\".\",\"/\");\n        \n        if (minfo[\"units\"]) { item.units = minfo[\"units\"]; }\n        item.title = (bits[bit].split(\".\")[1]?  bits[bit].split(\".\")[1]:bits[bit]) + \" [Modbus \" + msg.register + \", bit \" + bit + \"]\"; \n\n        if (minfo[\"title\"]) { item.title = minfo[\"title\"] + \", \" + item.title; }\n\n        if (minfo[\"values\"]) {\n            \n            if (minfo[\"values\"][15-bc]) {\n                if (minfo[\"values\"][15-bc][\"\" + item.payload]) { item.payload = minfo[\"values\"][15-bc][\"\" + item.payload]; }\n            }\n        }\n\n\n        \n        oot[item.topic] = item;\n        \n        bc=bc-1;\n\n    }\n    msg.payload = oot;\n    \n    return [null,msg];\n    \n    \n} \n\nelse if (minfo.datatype == \"IEEE754\") {\n\n    msg.payload = String.fromCharCode(msg.payload[3]) + String.fromCharCode(msg.payload[4]) + String.fromCharCode(msg.payload[5]) + String.fromCharCode(msg.payload[6]);\n    msg.payload = Buffer.from(msg.payload, 'ascii');\n\n    \n    let intValue;\n    // if (typeof msg.payload === \"number\") {\n    //     intValue = msg.payload;\n    // } else if (typeof msg.payload === \"string\") {\n    //     intValue = Number(msg.payload);\n    // } else if (msg.payload.length == 4) {\n        // four byte array or buffer\n        intValue = (((((msg.payload[0] << 8) + msg.payload[1]) << 8) + msg.payload[2]) << 8) + msg.payload[3];\n    // } else {\n    //     node.warn(\"Unrecognised payload type or length\");\n    // }\n\n    msg.payload = Int2Float32(intValue);\n        \n\n    msg.topic = dinfo.device + \"/\" + minfo[\"reading\"].replace(\".\", \"/\");\n\n\n\n    if (minfo[\"units\"]) { msg.units = minfo[\"units\"]; }\n    //if (minfo[\"title\"]) { msg.title = minfo[\"title\"]; }\n\n\n    if (minfo[\"title\"]) { msg.title = minfo[\"title\"] + \" [Modbus \" + msg.register + \"]\"; }\n    else { msg.title = (minfo[\"reading\"].split(\".\")[1] ? minfo[\"reading\"].split(\".\")[1] : minfo[\"reading\"]) + \" [Modbus \" + msg.register + \"]\"; }\n\n    return [msg, null];\n\n}\n\nelse {\n    \n   \n           \n    msg.payload = (256 * msg.payload[3]) + msg.payload[4];        \n    msg.payload =  msg.payload / parseFloat(minfo[\"multiplier\"] || 1);\n\n    msg.topic = dinfo.device + \"/\" + minfo[\"reading\"].replace(\".\",\"/\");\n\n\n    if (minfo[\"values\"]) {\n        \n        if (minfo[\"values\"]==\"alarmCodes\") { \n            \n            var ac = flow.get(\"alarmCodes\");\n            if (ac[\"\" + msg.payload]) { msg.payload = ac[\"\" + msg.payload]; }\n        }\n        \n        else if (minfo[\"values\"][\"\" + msg.payload]) { msg.payload = minfo[\"values\"][\"\" + msg.payload]; }\n    }\n\n    if (minfo[\"units\"]) { msg.units = minfo[\"units\"]; }\n    //if (minfo[\"title\"]) { msg.title = minfo[\"title\"]; }\n    \n    \n    if (minfo[\"title\"]) { msg.title = minfo[\"title\"] + \" [Modbus \" + msg.register + \"]\"; }\n    else  { msg.title = (minfo[\"reading\"].split(\".\")[1]?  minfo[\"reading\"].split(\".\")[1] : minfo[\"reading\"]) + \" [Modbus \" + msg.register + \"]\"; }\n\n    return [msg,null];\n    \n}\n\n",
        "outputs": 2,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 430,
        "y": 760,
        "wires": [
            [
                "dc3ca7c5.e94698",
                "86708b96.ef5ad8",
                "5e07fd48.7736c4"
            ],
            [
                "3e19cbf3.6791d4",
                "5ab178a1.1cde28",
                "86708b96.ef5ad8"
            ]
        ]
    },
    {
        "id": "dc3ca7c5.e94698",
        "type": "debug",
        "z": "9f18bf08.c2a65",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 650,
        "y": 640,
        "wires": []
    },
    {
        "id": "2f4d21d5.a442be",
        "type": "function",
        "z": "9f18bf08.c2a65",
        "name": "Modbus",
        "func": "// http://www.simplymodbus.ca/FC03.htm\n//11 03 006B 0003 7687\n// 11 03 06 AE41 5652 4340 49AD\n\n// uses address 17 as default.\n\n//var offs = 0;\n//if  (msg.payload[0] === 0) { offs = 1; }\nif (!msg.payload) { msg.payload={}; }\n\nvar address = msg.payload.address || msg.address ||8;\nvar fc = msg.payload.fc || msg.fc ;\nvar register = msg.payload.register || msg.register || 1;\nflow.set(\"curreg\", register);\nflow.set(\"fc\", fc);\n\nregister = register - 1;\n\nvar rlength = msg.payload.rlength || msg.rlength || 1;\n\nvar r1 = Math.floor(register / 256);\nvar r2 = register % 256;\n\n\n\n\nvar targetv = msg.targetv; //999;\n\n\nif (fc != 3 && fc != 6) { return null; }\n\nflow.set(\"modbusIn\",\"\");\n\n//targetv = global.get(\"modbus.\"+register+\".value\") || 0;\n\n//targetv = parseInt(global.get(\"modbus.\"+register+\".multiply\") || 1) * targetv;\n\n\nfunction crc16(buffer) {\n    var crc = 0xFFFF;\n    var odd;\n\n    for (var i = 0; i < buffer.length; i++) {\n        crc = crc ^ buffer[i];\n\n        for (var j = 0; j < 8; j++) {\n            odd = crc & 0x0001;\n            crc = crc >> 1;\n            if (odd) {\n                crc = crc ^ 0xA001;\n            }\n        }\n    }\n\n    crc  = \"0000\" + crc.toString(16);\n    crc = crc.substr(-4);\n\n    return crc;\n}\n\nvar tosend = \"\";\nvar crcString =\"\";\nvar msg2={};\n \nif (fc == 3) {   // read\n\n    \n    tosend = String.fromCharCode(address) + String.fromCharCode(3);\n    tosend += String.fromCharCode(r1) + String.fromCharCode(r2);\n    tosend += String.fromCharCode(0) + String.fromCharCode(rlength);\n    \n    crcString = crc16(Buffer.from(tosend, 'ascii'));\n    tosend += String.fromCharCode(parseInt(crcString.substr(2,2),16)) + String.fromCharCode(parseInt(crcString.substr(0,2),16)) ;\n    \n    msg.payload  = Buffer.from(tosend, 'ascii');\n    \n    tosend = \"-\" + tosend;\n    \n    msg2.payload  = Buffer.from(tosend, 'ascii');\n    \n    \n    return [msg,msg2];\n\n} else if (fc == 6 ) {    // write\n\n\n    tosend = String.fromCharCode(address) + String.fromCharCode(6);\n    \n    tosend += String.fromCharCode(r1) + String.fromCharCode(r2);\n    \n    targetv = parseInt(targetv) ;\n    var hexStringValue  = \"0000\" + targetv.toString(16);\n    hexStringValue = hexStringValue.substr(-4);\n    \n    \n    tosend += String.fromCharCode(parseInt(hexStringValue.substr(0,2),16)) + String.fromCharCode(parseInt(hexStringValue.substr(2,2),16)) ;\n    \n    \n    msg.payload  = Buffer.from(tosend, 'ascii');\n    \n    crcString = crc16(msg.payload);\n   \n    tosend += String.fromCharCode(parseInt(crcString.substr(2,2),16)) + String.fromCharCode(parseInt(crcString.substr(0,2),16)) ;\n   \n       \n    msg.payload  = Buffer.from(tosend, 'ascii');\n    tosend = \"-\" + tosend;\n    msg2.payload  = Buffer.from(tosend, 'ascii');\n    \n    \n    return [msg,msg2];\n\n} \n\n\n",
        "outputs": "2",
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 880,
        "y": 320,
        "wires": [
            [
                "e0f88c79.9f4af",
                "7cf5ec60.b4aa74",
                "748c3615.f4aed8"
            ],
            []
        ]
    },
    {
        "id": "5175b544.b7200c",
        "type": "serial in",
        "z": "9f18bf08.c2a65",
        "name": "",
        "serial": "5cc70f0836e6a358",
        "x": 230,
        "y": 760,
        "wires": [
            [
                "38612c3b.f919e4",
                "19182344.741c9d"
            ]
        ]
    },
    {
        "id": "748c3615.f4aed8",
        "type": "serial out",
        "z": "9f18bf08.c2a65",
        "name": "",
        "serial": "5cc70f0836e6a358",
        "x": 1090,
        "y": 320,
        "wires": []
    },
    {
        "id": "38612c3b.f919e4",
        "type": "debug",
        "z": "9f18bf08.c2a65",
        "name": "",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 310,
        "y": 680,
        "wires": []
    },
    {
        "id": "7cf5ec60.b4aa74",
        "type": "debug",
        "z": "9f18bf08.c2a65",
        "name": "",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 1090,
        "y": 280,
        "wires": []
    },
    {
        "id": "6cfb0711.4da528",
        "type": "inject",
        "z": "9f18bf08.c2a65",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "15",
        "crontab": "",
        "once": true,
        "onceDelay": "20",
        "topic": "",
        "payload": "registers",
        "payloadType": "flow",
        "x": 160,
        "y": 240,
        "wires": [
            [
                "329d854f.d78aca"
            ]
        ]
    },
    {
        "id": "329d854f.d78aca",
        "type": "function",
        "z": "9f18bf08.c2a65",
        "name": "",
        "func": "\nvar oot = [];\n\nfor (var r in flow.get(\"registers\")) {\n    for (var d in flow.get(\"devices\")) {\n    \n    \n        var item = {};\n        item.fc = 3;\n        item.address = flow.get(\"devices.\"+d+\".address\");\n        item.register = flow.get(\"registers.\"+r+\".register\");\n        item.rlength = flow.get(\"registers.\" + r + \".rlength\") || 1;\n\n        oot.push(item);\n        \n    }\n    \n}\n\nmsg.payload = oot;\n\nflow.set(\"msglist\",[]);\n\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 340,
        "y": 240,
        "wires": [
            [
                "d3419296.35733"
            ]
        ]
    },
    {
        "id": "bef71e0f.deefb",
        "type": "split",
        "z": "9f18bf08.c2a65",
        "name": "",
        "splt": "\\n",
        "spltType": "str",
        "arraySplt": 1,
        "arraySpltType": "len",
        "stream": false,
        "addname": "",
        "x": 550,
        "y": 320,
        "wires": [
            [
                "17020088.5d3acf"
            ]
        ]
    },
    {
        "id": "2a6e4f4c.deb5d",
        "type": "debug",
        "z": "9f18bf08.c2a65",
        "name": "",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 690,
        "y": 160,
        "wires": []
    },
    {
        "id": "ed2532f3.8b2eb",
        "type": "link out",
        "z": "9f18bf08.c2a65",
        "name": "",
        "links": [
            "72fc070f.39dd8"
        ],
        "x": 1075,
        "y": 680,
        "wires": []
    },
    {
        "id": "3e19cbf3.6791d4",
        "type": "split",
        "z": "9f18bf08.c2a65",
        "name": "",
        "splt": "\\n",
        "spltType": "str",
        "arraySplt": 1,
        "arraySpltType": "len",
        "stream": false,
        "addname": "topic",
        "x": 630,
        "y": 840,
        "wires": [
            [
                "72c274fa.6b8f9c"
            ]
        ]
    },
    {
        "id": "349371d0.2b2f3e",
        "type": "debug",
        "z": "9f18bf08.c2a65",
        "name": "",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 950,
        "y": 840,
        "wires": []
    },
    {
        "id": "5ab178a1.1cde28",
        "type": "debug",
        "z": "9f18bf08.c2a65",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 650,
        "y": 800,
        "wires": []
    },
    {
        "id": "203b17cc.280718",
        "type": "debug",
        "z": "9f18bf08.c2a65",
        "name": "",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 1090,
        "y": 780,
        "wires": []
    },
    {
        "id": "10d76ef9.420971",
        "type": "function",
        "z": "9f18bf08.c2a65",
        "name": "Read Key Registers",
        "func": "\n\nvar oot = [];\n\n    for (var d in flow.get(\"devices\")) {\n    \n    \n        var item = {};\n        item.fc = 3;\n        item.address = flow.get(\"devices.\"+d+\".address\");\n        item.register = 5;\n        item.rlength = 2;\n\n        oot.push(item);\n        \n        item.register = 11;\n\n        oot.push(item);\n        \n   \n        \n    }\n    \n\n\nmsg.payload = oot;\n\n\n\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 380,
        "y": 300,
        "wires": [
            [
                "bef71e0f.deefb"
            ]
        ]
    },
    {
        "id": "446f5a59.fe8d44",
        "type": "inject",
        "z": "9f18bf08.c2a65",
        "d": true,
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "10",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "",
        "payloadType": "date",
        "x": 170,
        "y": 300,
        "wires": [
            [
                "10d76ef9.420971"
            ]
        ]
    },
    {
        "id": "17020088.5d3acf",
        "type": "function",
        "z": "9f18bf08.c2a65",
        "name": "SHIFT",
        "func": "\nvar msglist=flow.get(\"msglist\") || [];\n\n//if (msglist.length> 100) { msglist = []; }\n    \nif (msg.payload == \"next\") { \n    \n    if (!msglist[0]) { return null; }\n    \n    if (flow.get(\"modbusIn\")===\"\") { return null; }\n    \n    msg = msglist[0];\n    msglist.shift();\n    flow.set(\"msglist\",msglist);\n    return msg;\n}\n\nelse {   \n    \n    msglist.push(msg); \n    flow.set(\"msglist\",msglist);\n    return null;\n    \n}\n\n\n\n\n",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 730,
        "y": 320,
        "wires": [
            [
                "2f4d21d5.a442be"
            ]
        ]
    },
    {
        "id": "5a484812.f02ea8",
        "type": "inject",
        "z": "9f18bf08.c2a65",
        "name": "",
        "props": [
            {
                "p": "payload",
                "v": "next",
                "vt": "str"
            },
            {
                "p": "topic",
                "v": "",
                "vt": "string"
            }
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