Automated Design of Industrial Sequence Controllers
نویسندگان
چکیده
A system for replacing solid-state or relay based industrial control logic with custom firmware, implemented in a standard system is described. A comparison to other approaches, such as OEM implemented high level language based systems and large computer based systems is made. Existing software developments, particularly high level languages for user convenience, are discussed. The approach includes three principal concepts, viz:(1) A high level user-oriented programming language which allows the designer to describe an entire logic circuit with a series of keystrokes. (2) A compiler which generates object code for a standard microprocessor based controller unit, and (3) A microprocessor based, portable suitcase, development system which includes all the necessary hardware and firmware for field implementation and modification of sequence controllers. The portable development system is based on the Motorola MC6800 microprocessor family while the controller uses the Motorola MCI4500B I-bit microprocessor family. The development of the keystroke language and its compiler/interpreter. AUTOMATISATION DE LA MISE EN APPLICATION DES CONTROLEURS INDUSTRIELS DE MISE EN S~QUENCE Un systeme pour remplacer les controles industriels logiques a composants semi-conducteurs ou a relais par une microprogrammation adaptee aux besoins particuliers de l'utilisateur d'un systeme standard est decrit. L'on fait la comparaison entre les autres methodes telles que la mise en application O.E.M. des systemes a langage de programmation evolue et des systemes a base de gros ordinateurs. D'autres concepts de software et particulierement les langages evolues pour la convenance de l'usager sont trait~s. Les trois concepts principals de cette approche sont: (1) Un langage de programmation evolue oriente vers l'usager qui permet un concept decrivant un circuit logique entier au moyen d'un clavier. (2) Un compilateur produisant un code pour un controleur standard microprocesseur. (3) Un systeme portatif a microprocesseur qui comprend tout le hardware et la microprogrammation necessaire pour la mise en application et la modification sur le chantier des controleurs de mise en sequence. La realisation du systeme portatif est basee sur la famille de microprocesseurs Motorola MC6800 et le controleur utilise la famille de microprocesseurs Motorola MCI4500B I-bit. La mise en valeur du langage du clavier et de son compilateur/interpreteur est accentuee.
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