Struct WrongFunctionCodeFault 

pub struct WrongFunctionCodeFault { /* private fields */ }

Corrupts the function code in Modbus response PDUs.

The function code is always at byte 0 of the PDU. This fault modifies that byte according to the configured mode.

Modes

• Fixed: Always use a specific function code
• Increment: Add 1 to the original FC
• Random: Use a random FC (different from original)
• SwapRW: Swap between read FCs (01-04) and write FCs (05, 06, 0F, 10)

Implementations

impl WrongFunctionCodeFault

pub fn new(mode: FcCorruptionMode, target: FaultTarget) -> Self

Create a new wrong function code fault.

pub fn with_fixed_fc(self, fc: u8) -> Self

Set a fixed function code (for Fixed mode).

pub fn from_config(config: &FaultTypeConfig, target: FaultTarget) -> Self

Create from config.

Trait Implementations

impl ModbusFault for WrongFunctionCodeFault

fn fault_type(&self) -> &'static str

Human-readable name of this fault type.

fn is_enabled(&self) -> bool

Whether this fault is currently enabled.

fn set_enabled(&self, enabled: bool)

Enable or disable this fault.

fn should_activate(&self, ctx: &ModbusFaultContext) -> bool

Check if this fault should activate for the given context. This is called by the pipeline before apply().

fn apply(&self, ctx: &ModbusFaultContext) -> FaultAction

Apply the fault, returning the action to take.

fn stats(&self) -> FaultStatsSnapshot

Get a snapshot of this fault’s statistics.

fn reset_stats(&self)

Reset all statistics counters.

fn is_short_circuit(&self) -> bool

Whether this fault produces short-circuit actions (Drop/Partial). Short-circuit faults are checked first in the pipeline.

fn compatible_transport(&self) -> Option<TransportKind>

Transport compatibility. Return None to be compatible with all transports.