Method and device for protecting and controlling the...

G - Physics – 05 – B

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G05B 19/04 (2006.01) G05B 19/05 (2006.01)

Patent

CA 1221150

PRECIS DE DIVULGATION Ce dispositif comprend sur des cartes d'Entrée/Sortie (4), une pluralité de circuits électroniques (300, 400, 500) constituant les interfaces logiques entre le bus de liaison avec l'unité centrale d'une part, et les capteurs ou action- neurs (9, 7) raccordés à chaque voie d'autre part. Ce disposi- tif comporte en outre des moyens de vérifier la bonne trans- mission des signaux d'Entrée/Sortie par les interfaces d'adaptation réalisant l'isolement galvanique du bus par rapport aux capteurs et actionneurs (9, 7) de l'automatisme contrôlé. L'invention s'applique notamment aux automates programmables.

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