V430 WebSocket Barcode Node

Node-RED node for streaming barcode reads from an Omron V430 over websocket.

Behavior

• Connects to websocket
• translates incoming data packets into Json data
• outputs data into 2 nodes
  • output 1 being just the barcode being read
  • output 2 being the metadata found in Json formatting
• Starts the websocket client only when Enabled is checked.

Outputs

Output 1 sends the barcode read:

{
  "topic": "v430/barcode",
  "payload": {
    "barcode": "0041199006794",
    "symbology": "EAN13",
    "host": "192.168.250.2",
    "port": 50502,
    "path": "/",
    "cycle_id": "0x000000e6",
    "read_time_ms": 86,
    "cycle_time_ms": 485,
    "received_at": "2026-07-06T14:30:00.000Z"
  }
}

Output 2 sends the metadata JSON:

{
  "topic": "v430/barcode/metadata",
  "payload": {
    "barcode": "0041199006794",
    "symbology": "EAN13",
    "cycle_id": "0x000000e6",
    "read_time_ms": 86,
    "cycle_time_ms": 485,
    "received_at": "2026-07-06T14:30:00.000Z",
    "frame_format": "text",
    "decoded_type": "string",
    "source": {
      "host": "192.168.250.2",
      "port": 50502,
      "path": "/",
      "websocket_url": "ws://192.168.250.2:50502/"
    },
    "event": "<cycleReport ... />"
  }
}

For compatibility, Output 1 still includes the decoded frame on msg.raw_event.

Files

• package.json: Node-RED package manifest
• V430_barcode_reader.js: runtime node implementation
• V430_barcode_reader.html: Node-RED editor UI

Local Use

1. Run npm.cmd install in this folder.
2. In your Node-RED user directory, run npm.cmd install <path-to-this-folder>.
3. Restart Node-RED.
4. Add V430 Barcode to a flow.

Notes

• Uncheck Enabled in the node editor to keep the node loaded in the flow without opening a websocket connection.
• If the V430 payload uses different barcode or symbology field names, update BARCODE_VALUE_KEYS or SYMBOLOGY_KEYS in V430_barcode_reader.js.