METHOD AND DEVICE FOR ERROR DETECTION IN A PROCESSOR WHICH EXECUTES A SAFETY-RELEVANT PROGRAM

摘要

The invention relates to a method for error detection in a processor which executes a safety-relevant program, and to a corresponding device. The aim of the invention is to achieve the greatest possible safety in error detection. In order to achieve said aim, the invention provides that the processor executes a test program during computing pauses of the safety-relevant program, wherein the output values thereof are compared by an external device with expected values, an error reaction being triggered if the values do not match.