ENGINEERING INSIGHT

EtherCAT + CiA 402: Drive Diagnostics That Help on Site

A drive integration is not complete when the motor turns. Commissioning needs to distinguish fieldbus, CiA 402, interlock, command-source and drive faults.

Expose the state machine

Decode the CiA 402 statusword into a readable state while retaining the raw hexadecimal value.

Controlword and command source

Display the effective controlword, requested direction, speed target and ownership source.

EtherCAT health before process logic

Monitor slave state, working-counter health and communication diagnostics independently of the process sequence.

Faceplates as diagnostic tools

Combine process-friendly status with engineering details such as raw state, actual speed, faults and reset availability.