Per-port link state and error counters decoded from a slave's ESC. More...

#include <fieldbus_driver.h>

Public Attributes
bool	linkUp = false
	Physical link detected on this port (DL Status link bit).

bool	loopClosed = false
	Loop closed on this port (no downstream slave, or port disabled).

bool	communication = false
	Stable communication established on this port (DL Status).

uint8_t	invalidFrame = 0
	Invalid-frame counter: frames with a bad FCS/structure (0x0300+).

uint8_t	rxError = 0
	Physical-layer RX error counter: RX_ER from the PHY (0x0301+).

uint8_t	forwardedError = 0

uint8_t	lostLink = 0
	Lost-link counter: link-down events on this port (0x0310+).

Detailed Description

Per-port link state and error counters decoded from a slave's ESC.

Each EtherCAT Slave Controller has up to four physical ports; the counters are 8-bit and saturate at 255 (they do not wrap) and are cleared only by a power cycle or an explicit write — so callers interpret them as a monotonic "errors since reset" figure and watch for a rising delta rather than an absolute value. Link state is decoded from DL Status (0x0110); the counters come from the error-counter block (0x0300–0x0313).

Member Data Documentation

◆ communication

bool mm::comm::PortDiagnostics::communication = false

Stable communication established on this port (DL Status).

◆ forwardedError

uint8_t mm::comm::PortDiagnostics::forwardedError = 0

Forwarded RX error counter: errors flagged by an upstream ESC (0x0308+). Pinpoints the segment where corruption began.

◆ invalidFrame

uint8_t mm::comm::PortDiagnostics::invalidFrame = 0

Invalid-frame counter: frames with a bad FCS/structure (0x0300+).

◆ linkUp

bool mm::comm::PortDiagnostics::linkUp = false

Physical link detected on this port (DL Status link bit).

◆ loopClosed

bool mm::comm::PortDiagnostics::loopClosed = false

Loop closed on this port (no downstream slave, or port disabled).

◆ lostLink

uint8_t mm::comm::PortDiagnostics::lostLink = 0

Lost-link counter: link-down events on this port (0x0310+).

◆ rxError

uint8_t mm::comm::PortDiagnostics::rxError = 0

Physical-layer RX error counter: RX_ER from the PHY (0x0301+).

The documentation for this struct was generated from the following file:

libs/comm/fieldbus_driver.h

Public Attributes