Enum ModbusError 

pub enum ModbusError {
    ShortResponse(usize),
    BadSlave(u8),
    BadHeader,
    BadCrc,
    Exception(u8),
}

Protocol-layer error: a frame was received but failed validation.

Variants

ShortResponse(usize)

Response was shorter than the smallest valid frame for the expected reply.

BadSlave(u8)

Slave address byte didn’t match the request.

BadHeader

Function-code, byte-count, address, or quantity field didn’t match what was expected.

BadCrc

CRC-16 mismatch.

Exception(u8)

Slave returned a Modbus exception. The byte is the exception code (0x01–0x0B per the spec).

Trait Implementations

impl Clone for ModbusError

fn clone(&self) -> ModbusError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

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, f: &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 Format for ModbusError

fn format(&self, f: Formatter<'_>)

Writes the defmt representation of self to fmt.

impl From<ModbusError> for RtuError

fn from(e: ModbusError) -> Self

Converts to this type from the input type.

impl PartialEq for ModbusError

fn eq(&self, other: &ModbusError) -> 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 Copy for ModbusError

impl Eq for ModbusError

impl StructuralPartialEq for ModbusError