Enum DiagnosticSubFunction 

#[repr(u16)]
pub enum DiagnosticSubFunction {
    ReturnQueryData = 0,
    RestartCommunicationsOption = 1,
    ReturnDiagnosticRegister = 2,
    ChangeAsciiInputDelimiter = 3,
    ForceListenOnlyMode = 4,
    ClearCountersAndDiagnosticRegister = 10,
    ReturnBusMessageCount = 11,
    ReturnBusCommunicationErrorCount = 12,
    ReturnBusExceptionErrorCount = 13,
    ReturnServerMessageCount = 14,
    ReturnServerNoResponseCount = 15,
    ReturnServerNakCount = 16,
    ReturnServerBusyCount = 17,
    ReturnBusCharacterOverrunCount = 18,
    ClearOverrunCounterAndFlag = 20,
}

Sub-function codes for Function Code 0x08 (Diagnostics).

Serial line only. See Modbus Application Protocol Specification V1.1b3, Section 6.8.

These values are 16-bit and encoded big-endian inside the PDU data field.

Variants

ReturnQueryData = 0

0x0000 — Return Query Data (Loopback test)

RestartCommunicationsOption = 1

0x0001 — Restart Communications Option

ReturnDiagnosticRegister = 2

0x0002 — Return Diagnostic Register

ChangeAsciiInputDelimiter = 3

0x0003 — Change ASCII Input Delimiter

ForceListenOnlyMode = 4

0x0004 — Force Listen Only Mode

ClearCountersAndDiagnosticRegister = 10

0x000A — Clear Counters and Diagnostic Register

ReturnBusMessageCount = 11

0x000B — Return Bus Message Count

ReturnBusCommunicationErrorCount = 12

0x000C — Return Bus Communication Error Count

ReturnBusExceptionErrorCount = 13

0x000D — Return Bus Exception Error Count

ReturnServerMessageCount = 14

0x000E — Return Server Message Count

ReturnServerNoResponseCount = 15

0x000F — Return Server No Response Count

ReturnServerNakCount = 16

0x0010 — Return Server NAK Count

ReturnServerBusyCount = 17

0x0011 — Return Server Busy Count

ReturnBusCharacterOverrunCount = 18

0x0012 — Return Bus Character Overrun Count

ClearOverrunCounterAndFlag = 20

0x0014 — Clear Overrun Counter and Flag

Implementations

impl DiagnosticSubFunction

pub fn to_be_bytes(self) -> [u8; 2]

Converts the DiagnosticSubFunction enum variant into its 2-byte big-endian representation.

Trait Implementations

impl Clone for DiagnosticSubFunction

fn clone(&self) -> DiagnosticSubFunction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DiagnosticSubFunction

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

Formats the value using the given formatter.

impl From<DiagnosticSubFunction> for u16

fn from(sub_func: DiagnosticSubFunction) -> Self

Converts to this type from the input type.

impl PartialEq for DiagnosticSubFunction

fn eq(&self, other: &DiagnosticSubFunction) -> 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 TryFrom<u16> for DiagnosticSubFunction

type Error = MbusError

The type returned in the event of a conversion error.

fn try_from(value: u16) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for DiagnosticSubFunction

impl Eq for DiagnosticSubFunction

impl StructuralPartialEq for DiagnosticSubFunction