Automatic control unit or programmable controller

Unite d'automate ou d'automatisme programmable.

Abstract

The present invention relates to an automatic control unit or programmable controller, comprising a specific processor (2) executing a specific application code corresponding to an application program, characterised in that the specific processor (2) includes means (21, 22, 23) for calculating a signature indicative of the sequencing of the execution of the application code and of the means (231, 234, 29) for verifying this signature with respect to a reference (31). <IMAGE>
<P>La présente invention se rapporte à une unité d'automate ou d'automatisme programmable, comprenant un processeur spécifique (2) exécutant un code d'application spécifique correspondant à un programme d'application, caractérisée par le fait que le processeur spécifique (2) comporte des moyens (21, 22, 23) pour calculer une signature représentative du séquencement de l'exécution du code application et des moyens de vérification (231, 234, 29) de cette signature par rapport à une référence (31).</P>

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