Enum ModbusError 

pub enum ModbusError {
    Io(Error),
    CrcError {
        expected: u16,
        actual: u16,
    },
    InvalidFunctionCode(u8),
    Timeout(Duration),
    InvalidAddress(u16),
    InvalidCount(u16),
    ModbusException {
        code: u8,
        function: u8,
    },
    Config(String),
    RdfMapping(String),
}

Errors that can occur when working with Modbus protocols

Variants

Io(Error)

I/O error during communication

CrcError

CRC checksum mismatch (RTU only)

Fields

expected: u16

Expected CRC value

actual: u16

Actual CRC value received

InvalidFunctionCode(u8)

Invalid Modbus function code

Timeout(Duration)

Connection timeout

InvalidAddress(u16)

Invalid register address

InvalidCount(u16)

Invalid register count

ModbusException

Modbus exception response

Fields

code: u8

Exception code (0x01-0x0B)

function: u8

Function code that caused the exception

Config(String)

Configuration error

RdfMapping(String)

RDF mapping error

Trait Implementations

impl Debug for ModbusError

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

Formats the value using the given formatter.

impl Display for ModbusError

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

Formats the value using the given formatter.

impl Error for ModbusError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for ModbusError

fn from(source: Error) -> Self

Converts to this type from the input type.