8511 CPU time overflow

Description

Refer to Diagnostic class (standard): 3

The real-time process is overloaded (CycleLoad >95 %). The DiagExtMsg parameter displays the measured load as Load = xxx % with xxx indicating the load in %.

NOTE: Having detected the error, the actual and target values for the encoders, generators, and axes are no longer processed in the real-time process. As a result, the target and actual values parameter of the axes show invalid values.

Cause

Solution

Too many objects have been entered into the PLC configuration.

Increase the CycleTime parameter of the Sercos interface in the PLC configuration.