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The following fault, error, and alarm are each indicative of possible cable or connection problems.

  • F125 on the AKD, "Fieldbus Sync frames lost."
  • E30 in KAS, "EtherCAT communication failure during operational mode."
  • A38 in KAS, "EtherCAT missed a receive frame during operational mode."

The command ECAT.DIAG can be executed in the workbench terminal to help identify the location of the problem after it occurs.

The following is an example of the output from this command.

The PDO Ethercat channel provides deterministic, fast update of parameters between the KAS controller and drives (through Ethercat). The PDO Selection Mapping tab provides an method to link PDO parameters to variables in the application code. The following example shows mapping the Drive Status word bits  to (bool) variables in the project.

The drive Status Word bit definitions are as follows: