Node-Red show serial

serial-flow.json

[
    {
        "id": "dbd3635678fe7351",
        "type": "victron-input-system",
        "z": "fc595badb082c140",
        "service": "com.victronenergy.system/0",
        "path": "/Serial",
        "serviceObj": {
            "service": "com.victronenergy.system/0",
            "name": "Venus system"
        },
        "pathObj": {
            "path": "/Serial",
            "type": "string",
            "name": "Serial (System)"
        },
        "name": "",
        "onlyChanges": false,
        "x": 730,
        "y": 40,
        "wires": [
            [
                "6641649077c93a7a"
            ]
        ]
    },
    {
        "id": "6641649077c93a7a",
        "type": "debug",
        "z": "fc595badb082c140",
        "name": "debug 1",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 1000,
        "y": 40,
        "wires": []
    }
]