Abstract: A control system for machinery and plants generally, particularly for the applications to machine tools or welding machines for large mass production comprising a centralized unit pre-disposed for the general control of a unit of mechanical groups or machining stations; the connections between said central unit and the single mechanic groups or machining stations being embodied through local control units comprising control units for power services and a personalized logic standard unit with a programming device pre-disposed for a pre-selected sequence of stages on said single mechanical group or machining station; said logic unit comprising a step-by-step programmer operatively associated with said single machine or machining station in order to embody a sequence of operations as prefixed by means of said programming device.

Abstract: A coding system for elements of machine tools, particularly of the numerically controlled type, consisting of a "bar" code (14) applied to the element (10) to be coded, and read by a reading head (17) provided with a code detecting sensor (18) connected to a circuit for transforming the code into signals fed to utilization circuits (21, 26) which operate by comparing the read message with a set signal.