Trait libmodbus_rs::ModbusClient

pub trait ModbusClient {
    fn read_bits(&self, address: i32, num: i32, dest: &mut [u8]) -> Result<i32>;
    fn read_input_bits(
        &self, 
        address: i32, 
        num: i32, 
        dest: &mut [u8]
    ) -> Result<i32>;
    fn read_registers(
        &self, 
        address: i32, 
        num: i32, 
        dest: &mut [u16]
    ) -> Result<i32>;
    fn read_input_registers(
        &self, 
        address: i32, 
        num: i32, 
        dest: &mut [u16]
    ) -> Result<i32>;
    fn report_slave_id(&self, max_dest: usize, dest: &mut [u8]) -> Result<i32>;
    fn write_bit(&self, address: i32, status: bool) -> Result<()>;
    fn write_bits(&self, address: i32, num: i32, src: &[u8]) -> Result<i32>;
    fn write_register(&self, address: i32, value: i32) -> Result<()>;
    fn write_registers(
        &self, 
        address: i32, 
        num: i32, 
        src: &[u16]
    ) -> Result<i32>;
    fn write_and_read_registers(
        &self, 
        write_address: i32, 
        write_num: i32, 
        src: &[u16], 
        read_address: i32, 
        read_num: i32, 
        dest: &mut [u16]
    ) -> Result<i32>;
    fn send_raw_request(&self, raw_request: &mut [u8]) -> Result<i32>;
    fn receive_confirmation(&self) -> Result<Vec<u8>>;
}

The Modbus protocol defines different data types and functions to read and write them from/to remote devices. The following functions are used by the clients to send Modbus requests:

• Read data
  • read_bits(), read_input_bits(), read_registers(), read_input_registers(), report_slave_id()
• Write data
  • write_bit(), write_register(), write_bits(), write_registers()
• Write and read data
  • write_and_read_registers()
• Raw requests
  • send_raw_request(), receive_confirmation()
• Reply an exception
  • reply_exception()

Required Methods

fn read_bits(&self, address: i32, num: i32, dest: &mut [u8]) -> Result<i32>

fn read_input_bits(
    &self,
    address: i32,
    num: i32,
    dest: &mut [u8]
) -> Result<i32>

fn read_registers(
    &self,
    address: i32,
    num: i32,
    dest: &mut [u16]
) -> Result<i32>

fn read_input_registers(
    &self,
    address: i32,
    num: i32,
    dest: &mut [u16]
) -> Result<i32>

fn report_slave_id(&self, max_dest: usize, dest: &mut [u8]) -> Result<i32>

fn write_bit(&self, address: i32, status: bool) -> Result<()>

fn write_bits(&self, address: i32, num: i32, src: &[u8]) -> Result<i32>

fn write_register(&self, address: i32, value: i32) -> Result<()>

fn write_registers(&self, address: i32, num: i32, src: &[u16]) -> Result<i32>

fn write_and_read_registers(
    &self,
    write_address: i32,
    write_num: i32,
    src: &[u16],
    read_address: i32,
    read_num: i32,
    dest: &mut [u16]
) -> Result<i32>

fn send_raw_request(&self, raw_request: &mut [u8]) -> Result<i32>

fn receive_confirmation(&self) -> Result<Vec<u8>>

Implementors

• impl ModbusClient for Modbus