Struct ModbusTcpTransport 

pub struct ModbusTcpTransport { /* private fields */ }

Modbus TCP client transport implementing the DataLink trait.

Uses MBAP framing with auto-incrementing transaction IDs. The transport is internally mutex-protected, so it can be shared behind an Arc.

Implementations

impl ModbusTcpTransport

pub async fn connect<A: ToSocketAddrs>(addr: A) -> Result<Self, DataLinkError>

Connect to a Modbus TCP device (e.g. "192.168.1.10:502").

pub fn from_stream(stream: TcpStream) -> Self

Wrap an existing TcpStream as a Modbus TCP transport.

Trait Implementations

impl DataLink for ModbusTcpTransport

fn reconnect<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<(), DataLinkError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Attempt to re-establish the underlying connection.

fn exchange<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, unit_id: UnitId, request_pdu: &'life1 [u8], response_pdu: &'life2 mut [u8], ) -> Pin<Box<dyn Future<Output = Result<usize, DataLinkError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Send a request PDU to a unit and write the response PDU into response_pdu.

fn is_connected(&self) -> bool

Check if the transport is connected.

impl Debug for ModbusTcpTransport

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

Formats the value using the given formatter.