Struct StdSerialTransport 

pub struct StdSerialTransport { /* private fields */ }

A concrete implementation of Transport for Serial communication using serialport crate. Supports both RTU and ASCII modes.

Implementations

impl StdSerialTransport

pub fn new(mode: SerialMode) -> Self

Creates a new StdSerialTransport instance.

pub fn available_ports() -> Result<Vec<SerialPortInfo>, Error>

Returns a list of available serial ports on the system. This can be useful for allowing a user to select a port.

Trait Implementations

impl Debug for StdSerialTransport

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Transport for StdSerialTransport

fn connect(&mut self, config: &ModbusConfig) -> Result<(), Self::Error>

Establishes a connection to the specified serial port.

Arguments

• config - The ModbusConfig containing the serial port configuration. This must be the ModbusConfig::Serial variant.

Returns

Ok(()) if the connection is successfully established, or an error otherwise.

fn disconnect(&mut self) -> Result<(), Self::Error>

Closes the active serial port connection.

If no connection is active, this operation does nothing and returns Ok(()).

fn send(&mut self, adu: &[u8]) -> Result<(), Self::Error>

Sends a Modbus Application Data Unit (ADU) over the serial port.

Arguments

• adu - The byte slice representing the ADU to send.

Returns

Ok(()) if the ADU is successfully sent, or an error otherwise.

fn recv(&mut self) -> Result<Vec<u8, MAX_ADU_FRAME_LEN>, Self::Error>

Receives a Modbus Application Data Unit (ADU) from the serial port.

This implementation is non-blocking: it checks the serial port’s input buffer and reads only the bytes currently available. If no bytes are available, it returns TransportError::Timeout.

Returns

Ok(Vec<u8, MAX_ADU_FRAME_LEN>) containing the received ADU, or an error otherwise.

fn is_connected(&self) -> bool

Checks if the transport is currently connected to a remote host.

fn transport_type(&self) -> TransportType

Returns the type of transport.

type Error = TransportError

The specific error type returned by this transport implementation. It must be convertible into the common MbusError for upper-layer processing.