METHOD AND APPARATUS FOR SEQUENTIAL CONTROL OF ANALOGUE SIGNALS

A method and apparatus are provided for managing a plurality of analogue signals for digital control. Analogue input signals received from a process are periodically sampled and converted to digital input signals for access by a digital control. Digital output signals produced by the digital control are converted to analogue output signals and stored for continuous availability to a controlled process. The sampling and conversion of analogue input signals as well as the conversion and storage of analogue output signals is conducted asynchronously relative to the activity of the digital control by a predetermined program of control signals repetitively produced in response to a clock signal.