Abstract
A remote data acquisition and display system is described. The system deploys distributed intelligent microprocessors using a structured, high-level language with a simple operating system. The hardware and microprocessor software are modular; thus, the overall system is flexible and can be easily tailored to a wide variety of applications. The remote units accept a variety of analog and digital signals, perform automatic test and calibration of analog inputs, and perform conversion to customary units of measure. Information is digitally multiplexed from the input units to display units which format the data for alphanumeric or graphic displays or for conventional analog meters or recorders. Operator interactions are achieved by means of functional keys on the display or via a maintenance terminal. Software tests and on-line diagnostics are used to detect faults and aid in maintenance and repair.
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