# @ya-modbus/transport

Modbus transport implementations for RTU (serial) and TCP connections.

## Features

- RTU (RS-485/serial) transport
- TCP/IP transport
- Automatic retry on transient failures
- Factory for auto-detecting transport type
- TypeScript support

## Installation

```bash
npm install @ya-modbus/transport
```

## Usage

```typescript
import { createTransport } from '@ya-modbus/transport'

// RTU (serial) transport
const rtuTransport = await createTransport({
  port: '/dev/ttyUSB0',
  baudRate: 9600,
  dataBits: 8,
  parity: 'none',
  stopBits: 1,
  slaveId: 1,
})

// TCP transport
const tcpTransport = await createTransport({
  host: '192.168.1.100',
  port: 502, // optional, defaults to 502
  slaveId: 1,
})

// Use transport with driver
await rtuTransport.readHoldingRegisters(0, 10)
```

## License

GPL-3.0-or-later