Patent ID: 6880119

Claim:
A method of supervising parallel processes in a data system that includes a first system (CP-A) and a second system (CP-B), said method comprising the steps of: generating a first status word (STWA) in the first system (CP-A) and a parallel second status word (STWB) in the second system (CP-B); generating in the first system (CP-A) a first check code (CCA) from the first status word (STWA); and generating in the second system CP-B) a second check code (CCB) from the second status word (STWB), wherein said method is characterised by the further steps of transferring the first check code (CCA) from the first system (CP-A) to the second system (CP-B); and recreating the first data word (STWA) in the second system (CP-B) by evaluating the first check code (CCA), the second check code (CCB) and the second data word (STWB).