Turck IM18-CCM50 Modbus read

README.md

This flow polls a modbus-read node to read out the temperature of a Banner QM30VT2 sensor connect via modbus RTU to a Turck IM18-CCM50. This flow polls the temperature register every 30 seconds (this can be changed after importing) and converts the temperature register to a JSON object.

flow.json

[
    {
        "id": "7adfcca41334b23a",
        "type": "tab",
        "label": "VibrationSensor_Read",
        "disabled": false,
        "info": ""
    },
    {
        "id": "516658eaeb338f3c",
        "type": "debug",
        "z": "7adfcca41334b23a",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
        "x": 890,
        "y": 200,
        "wires": []
    },
    {
        "id": "2461d2b4c0a66a0d",
        "type": "function",
        "z": "7adfcca41334b23a",
        "name": "",
        "func": "var temperature = msg.responseBuffer.data[0];\ntemperature = temperature/100;\n//delete msg.payload;\nmsg = {};\nmsg.timestamp = new Date().valueOf();\nmsg.payload = {};\n// Use parseFloat to convert string to float\nmsg.payload.temperature = temperature;\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 660,
        "y": 200,
        "wires": [
            [
                "516658eaeb338f3c"
            ]
        ]
    },
    {
        "id": "ca36aa3f826d5f51",
        "type": "modbus-read",
        "z": "7adfcca41334b23a",
        "name": "",
        "topic": "",
        "showStatusActivities": false,
        "logIOActivities": false,
        "showErrors": false,
        "unitid": "",
        "dataType": "HoldingRegister",
        "adr": "5203",
        "quantity": "1",
        "rate": "30",
        "rateUnit": "s",
        "delayOnStart": true,
        "startDelayTime": "10",
        "server": "2a6c230d1b558f62",
        "useIOFile": false,
        "ioFile": "",
        "useIOForPayload": false,
        "emptyMsgOnFail": false,
        "x": 430,
        "y": 200,
        "wires": [
            [
                "2461d2b4c0a66a0d"
            ],
            []
        ]
    },
    {
        "id": "2a6c230d1b558f62",
        "type": "modbus-client",
        "name": "",
        "clienttype": "serial",
        "bufferCommands": true,
        "stateLogEnabled": false,
        "queueLogEnabled": false,
        "tcpHost": "127.0.0.1",
        "tcpPort": "502",
        "tcpType": "DEFAULT",
        "serialPort": "/dev/ttyO1",
        "serialType": "RTU-BUFFERD",
        "serialBaudrate": "19200",
        "serialDatabits": "8",
        "serialStopbits": "1",
        "serialParity": "none",
        "serialConnectionDelay": "100",
        "unit_id": "1",
        "commandDelay": "1",
        "clientTimeout": "1000",
        "reconnectOnTimeout": true,
        "reconnectTimeout": "2000",
        "parallelUnitIdsAllowed": true
    }
]