Set RS485 Baud Rate

Use device.operation.execute to set the device RS485 baud rate.

Permission

device:config

Request

{
  "type": "request",
  "requestId": "req_baud_001",
  "topic": "device.operation.execute",
  "data": {
    "deviceId": "abc123456789",
    "idempotencyKey": "idem_baud_001",
    "operation": {
      "name": "device.rs485.baudRate.set",
      "params": {
        "baudRate": 9600
      }
    }
  }
}

baudRate is an integer from 1 through 65535, in bps.

Reply

{
  "type": "reply",
  "requestId": "req_baud_001",
  "code": "COMMAND_ACCEPTED",
  "message": "Command accepted.",
  "data": {
    "command": {
      "id": "cmd_01HZ...",
      "deviceId": "abc123456789",
      "operation": "device.rs485.baudRate.set",
      "status": "SUCCESS",
      "params": {
        "baudRate": 9600
      },
      "result": {
        "baudRate": 9600
      },
      "createdAt": "2026-07-15T08:30:00Z"
    }
  }
}

params.baudRate is the requested value. result.baudRate is present only when the device confirms the value. result is omitted for TIMEOUT.

Baud-rate changes do not produce WebSocket configuration events. Use REST Get Device Configuration when you need the current configuration.

Possible errors include INVALID_REQUEST, AUTH_SCOPE_DENIED, DEVICE_NOT_FOUND, DEVICE_BUSY, DEVICE_OFFLINE, IDEMPOTENCY_CONFLICT, COMMAND_REJECTED, RATE_LIMITED, GATEWAY_UNAVAILABLE, and INTERNAL_ERROR.