Control unit or programmable control.

摘要

The present invention relates to an automatic unit or programmable automatic controller comprising a dedicated processor (2) executing specific application code corresponding to an application program, characterised in that the dedicated processor (2) includes means (21, 22, 23) for calculating a signature which is representative of the sequencing of the execution of the application code and means (231, 234, 29) for verifying this signature with respect to a reference (31). <IMAGE>