Struct Slave 

pub struct Slave(pub SlaveId);

A single byte for addressing Modbus slave devices.

Tuple Fields

0: SlaveId

Implementations

impl Slave

pub const fn broadcast() -> Self

The special address for sending a broadcast message to all connected Modbus slave devices at once. Broadcast messages are one-way and sent from the master to all slaves, i.e. a request without a response.

Some devices may use a custom id from the reserved range 248-255 for broadcasting.

pub const fn min_device() -> Self

The minimum address of a single Modbus slave device.

pub const fn max_device() -> Self

The maximum address of a single Modbus slave device.

pub const fn tcp_device() -> Self

The reserved address for sending a message to a directly connected Modbus TCP device, i.e. if not forwarded through a TCP/RTU gateway according to the unit identifier.

Modbus Messaging on TCP/IP Implementation Guide, page 23 “On TCP/IP, the Modbus server is addressed using its IP address; therefore, the Modbus Unit Identifier is useless. The value 0xFF has to be used.”

pub fn is_broadcast(self) -> bool

Check if the SlaveId is used for broadcasting

pub fn is_single_device(self) -> bool

Check if the SlaveId addresses a single device

pub fn is_reserved(self) -> bool

Check if the SlaveId is reserved

Trait Implementations

impl Clone for Slave

fn clone(&self) -> Slave

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Slave

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

Formats the value using the given formatter.

impl Display for Slave

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

Formats the value using the given formatter.

impl From<Slave> for SlaveId

fn from(from: Slave) -> Self

Converts to this type from the input type.

impl From<u8> for Slave

fn from(from: SlaveId) -> Self

Converts to this type from the input type.

impl FromStr for Slave

type Err = ParseIntError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Ord for Slave

fn cmp(&self, other: &Slave) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Slave

fn eq(&self, other: &Slave) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Slave

fn partial_cmp(&self, other: &Slave) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Slave

impl Eq for Slave

impl StructuralPartialEq for Slave