KUKA Error Message 1391 Access to component not allowed

KUKA Robot Error Code 1391 Access to component not allowed
Cause – Illegal access to a component of the program/motion trace (e.g. SHOW VAR $PRO_TRACE[5].NAME[2]).
Monitor – In command processing.
Effect – Command is not executed.
Remedy


KUKA Error Message 1391 Access to component not allowed