nodered.json

[
    {
        "id": "subflow-powermeter",
        "type": "subflow",
        "name": "B2500",
        "info": "This subflow handles UDP and TCP communications for powermeter data.",
        "in": [
            {
                "x": 80,
                "y": 80,
                "wires": [
                    {
                        "id": "send-powermeter-values"
                    }
                ]
            }
        ],
        "out": [],
        "env": [],
        "color": "#DDAA99"
    },
    {
        "id": "udp-in",
        "type": "udp in",
        "z": "subflow-powermeter",
        "name": "",
        "iface": "",
        "port": "12345",
        "ipv": "udp4",
        "multicast": "false",
        "group": "",
        "datatype": "utf8",
        "x": 140,
        "y": 160,
        "wires": [
            [
                "udp-handler"
            ]
        ]
    },
    {
        "id": "udp-out",
        "type": "udp out",
        "z": "subflow-powermeter",
        "name": "",
        "iface": "",
        "port": "",
        "ipv": "udp4",
        "outport": "",
        "base64": false,
        "multicast": "false",
        "group": "",
        "x": 660,
        "y": 160,
        "wires": []
    },
    {
        "id": "tcp-in",
        "type": "tcp in",
        "z": "subflow-powermeter",
        "name": "",
        "server": "server",
        "host": "",
        "port": "12345",
        "datamode": "stream",
        "datatype": "utf8",
        "newline": "",
        "topic": "",
        "base64": false,
        "x": 140,
        "y": 240,
        "wires": [
            [
                "tcp-handler"
            ]
        ]
    },
    {
        "id": "tcp-out",
        "type": "tcp out",
        "z": "subflow-powermeter",
        "host": "",
        "port": "",
        "beserver": "reply",
        "base64": false,
        "end": false,
        "name": "",
        "x": 660,
        "y": 240,
        "wires": []
    },
    {
        "id": "udp-handler",
        "type": "function",
        "z": "subflow-powermeter",
        "name": "Handle UDP",
        "func": "node.log(`Received UDP message: ${msg.payload}`);\nif (msg.payload === \"hame\") {\n    msg.payload = \"ack\";\n    node.log(`Sent UDP response: ack`);\n    return [msg, null];\n} else {\n    node.warn(`Received unknown UDP message: ${msg.payload}`);\n    return [null, null];\n}",
        "outputs": 2,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 400,
        "y": 160,
        "wires": [
            [
                "udp-out"
            ],
            []
        ]
    },
    {
        "id": "tcp-handler",
        "type": "function",
        "z": "subflow-powermeter",
        "name": "Handle TCP",
        "func": "node.log(`Received TCP message: ${msg.payload}`);\nif (msg.payload.trim() === \"hello\") {\n    flow.set(\"tcp-addr\", msg._session);\n    node.log(`Stored TCP session for future messages`);\n    msg.payload = \"\"; // Clear payload to send later\n    node.send([null, msg]);\n} else {\n    node.warn(`Received unknown TCP message: ${msg.payload}`);\n    return null;\n}",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 400,
        "y": 240,
        "wires": [
            []
        ]
    },
    {
        "id": "send-powermeter-values",
        "type": "function",
        "z": "subflow-powermeter",
        "name": "Send Powermeter Values",
        "func": "var values = msg.payload;\nif (typeof values === 'string' || typeof values === 'number') {\n    values = [Number(values)];\n} else if (Array.isArray(values)) {\n    values = values.map(Number);\n} else {\n    values = [0, 0, 0];\n}\n\nnode.log(`Received new powermeter values: ${values}`);\n\nvar disableSumPhases = flow.get(\"disableSumPhases\") || false;\nvar allowNegativeValues = flow.get(\"allowNegativeValues\") || false;\n\nvar value1 = values[0] || 0;\nvar value2 = values[1] || 0;\nvar value3 = values[2] || 0;\n\nif (!disableSumPhases) {\n    value1 += value2 + value3;\n    value2 = 0;\n    value3 = 0;\n}\n\nif (!allowNegativeValues) {\n    value1 = Math.abs(value1);\n    value2 = Math.abs(value2);\n    value3 = Math.abs(value3);\n}\n\nvalue1 = Math.round(value1);\nvalue2 = Math.round(value2);\nvalue3 = Math.round(value3);\n\nmsg.payload = `HM:${value1}|${value2}|${value3}`;\nmsg._session = flow.get(\"tcp-addr\");\nif (msg._session) {\n    node.log(`Sent TCP message: ${msg.payload}`);\n    return msg;\n} else {\n    node.warn(`No TCP session found. Message not sent: ${msg.payload}`);\n    return null;\n}",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 400,
        "y": 320,
        "wires": [
            [
                "tcp-out"
            ]
        ]
    },
    {
        "id": "subflow-instance",
        "type": "subflow:subflow-powermeter",
        "z": "your-flow-id",
        "name": "",
        "env": [],
        "x": 360,
        "y": 80,
        "wires": []
    },
    {
        "id": "inject-powermeter-values",
        "type": "inject",
        "z": "your-flow-id",
        "name": "Inject Powermeter Values",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "1",
        "crontab": "",
        "once": true,
        "onceDelay": "1",
        "topic": "",
        "payload": "[100, 50, 25]",
        "payloadType": "json",
        "x": 160,
        "y": 80,
        "wires": [
            [
                "subflow-instance"
            ]
        ]
    }
]