Slave Enhanced Network Diagnostic

The "Slave Enhanced Network Diagnostic" structure provides information on the network state and the events that occurred in the network. All the information in the structure is provided by a slave.

Port Error Counter

The "Port Error Counter" structure combines the counters of a slave port.

Lost Link Counter

This counter is incremented when a slave detects an interrupted physical connection.

Physical Layer

This counter is incremented when a slave detects an error when receiving an Ethernet frame.

Auto Forwarder Original

Number of detected invalid Ethernet frames (invalid frame counter).

Auto Forwarder Forwarded

Number of invalid Ethernet frames detected by a previous slave (forwarded Rx error counter).

EtherCAT® Processing Unit

Number of invalid Ethernet frames detected by the EtherCAT® processing unit.

Port 0

The structure combines the error counters of slave port 0.

Port 1

The structure combines the error counters of slave port 1.

Port 2

The structure combines the error counters of slave port 2.

Port 3

The structure combines the error counters of slave port 3.

PDI Diagnostics

The "PDI Diagnostics" structure combines the counters for the process data interface (PDI) of the slave. PDI is the interface between slave controller and application controller.

PDI Error Counter

Number of physical error detected by the PDI.

PDI Error Code

Error code that describes the last error detected by the PDI.

PDI Watchdog Counter

Watchdog counter for monitoring the PDI.

Process Data Watchdog Counter

Counter for activated SyncManager watchdogs. This corresponds to the process data timeout, which means the absence of OUT process data.