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Configuration Error (PLCN0011): There are too many program instances defined in '...' (current : ..., max. allowed: ...).

The maximum number of program instances for the controller is exceeded.

In the error message, the actual number of instances and the maximum allowed number of instances are indicated.

Remedy

  1. Double-click the error message to open the 'Tasks and Events' editor of the controller (under the 'PLCnext' node).
  2. Restructure your project in order to reduce the number of program instances.