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CNC and PLC: are they one and the same for machine tools?

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2 Author(s)
M. Moreaux ; Lab. d'Inf. Tech., Ecole Polytech. Federale de Lausanne, Switzerland ; J. D. Decotignie

The traditionally accepted way of designing a computerized numerical controller (CNC) is to split the architecture into three entities: a programmable logical controller (PLC), a black box that could be called a CNC director (CNCD), and a composite entity containing the CNC axes controllers and which could be simply expressed as the axes entity. The drawbacks involved in this architecture are described and a new architecture for the whole CNC is presented. The advantages implied by the new architecture are considered. The comparison of the proposed architecture with a traditional PLC architecture led to the conclusion that CNC evolution is based on the PLC

Published in:

Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on

Date of Conference:

28 Oct-1 Nov 1991