Struct modbus_client::tcp::Transport

pub struct Transport {
    tid: u16,
    uid: u8,
    stream: TcpStream,
}

Context object which holds state for all modbus operations.

Fields

tid: u16

uid: u8

stream: TcpStream

Implementations

impl Transport

pub fn new_with_cfg(addr: &str, cfg: ModbusConfig) -> Result<Transport>

Create a new context object and connect it to addr on port port

pub fn _set_uid(&mut self, uid: u8)

Set the unit identifier.

fn new_tid(&mut self) -> u16

fn read(&mut self, fun: &Function<'_>) -> Result<Vec<u8>>

fn validate_response_header(req: &Header, resp: &Header) -> Result<()>

fn validate_response_code(req: &[u8], resp: &[u8]) -> Result<()>

fn get_reply_data(reply: &[u8], expected_bytes: usize) -> Result<Vec<u8>>

fn write_single(&mut self, fun: &Function<'_>) -> Result<()>

fn write_multiple(&mut self, fun: &Function<'_>) -> Result<()>

fn write(&mut self, buff: &mut [u8]) -> Result<()>

pub fn _close(&mut self) -> Result<()>

Trait Implementations

impl Requests for Transport

fn read_coils(&mut self, addr: u16, count: u16) -> Result<Vec<Coil>>

Read count bits starting at address addr.

fn read_discrete_inputs(&mut self, addr: u16, count: u16) -> Result<Vec<Coil>>

Read count input bits starting at address addr.

fn read_holding_registers(&mut self, addr: u16, count: u16) -> Result<Vec<u16>>

Read count 16bit registers starting at address addr.

fn read_input_registers(&mut self, addr: u16, count: u16) -> Result<Vec<u16>>

Read count 16bit input registers starting at address addr.

fn write_single_coil(&mut self, addr: u16, value: Coil) -> Result<()>

Write a single coil (bit) to address addr.

fn write_single_register(&mut self, addr: u16, value: u16) -> Result<()>

Write a single 16bit register to address addr.

fn write_multiple_coils(&mut self, addr: u16, values: &[Coil]) -> Result<()>

Write a multiple coils (bits) starting at address addr.

fn write_multiple_registers(&mut self, addr: u16, values: &[u16]) -> Result<()>

Write a multiple 16bit registers starting at address addr.