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Odo J Struger, William W Searcy, Ernest F John: Malfunction detection system for a programmable controller. Allen Bradley Company, Quarles & Brady, June 13, 1978: US04095094 (28 worldwide citation)

A programmable controller includes a hardwired monitor module which connects to the I/O address decoder and the central logic unit of the controller. The monitor module detects malfunctions which cause deviations in the operation of these elements from a prescribed pattern, and in response generates ...


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Struger Odo J, Searcy William W, John Ernest F: Systeme de detection de defaillance pour un organe de commande programmable, Malfunction detection system for a programmable controller. Allen Bradley Company, November 7, 1978: CA1042110

MALFUNCTION DETECTION SYSTEM FOR A PROGRAMMABLE CONTROLLER Abstract of the DisclosureA programmable controller includes a hardwired monitor module whichconnects to the I/O address decoder and the central logic unit of the controller. Themonitor module detects malfunctions which cause deviations in t ...