Error tolerant automation system and method for error handling in a real-time automation system

A real-time automation system capable of running a plurality of tasks having different priority levels, the automation system comprising:

• a plurality of execution levels each comprising a different priority level, wherein the plurality of tasks are assigned to the plurality of execution levels based on the priority level associated with each of the plurality of tasks;
• and
• at least one error reaction function for handling an occurrence of at least one of the group consisting of at least one processing error and at least one access error in one of the plurality of tasks assigned to one of the plurality of execution levels, wherein a first error reaction function is executed on the same execution level as the one of the plurality of tasks in which either or both of the at least one processing error and the at least one access error has occurred and wherein a second error reaction function is executed on one of the plurality of execution levels comprising a lower priority than the one of the plurality of tasks in which either or both of the at least one processing error and the at least one access error has occurred.