Title :
The safety matrix-a method for guidelining industrial microcomputers
Author :
Maggioli, Victor J.
Author_Institution :
E.I. du Pont de Nemours & Co. Inc., Newark, DE, USA
Abstract :
A matrix guideline, used to compare the safety values of existing control circuit options to those of new options, is outlined. Programmable controllers, instrument distributed control systems, front-end controllers, and microcomputers are compared to electromechanical relays to clarify the microcomputer type controllers´ levels of safety responsibility. The matrix can assist those knowledgeable in safety and electromechanical relay application, but not familiar with today´s microcomputer technology, in choosing the appropriate system configuration for risk-related applications
Keywords :
computerised control; microcomputer applications; relay protection; safety; control systems; electromechanical relays; industrial microcomputers; risk-related applications; safety matrix; Circuits; Control systems; Distributed control; Electrical equipment industry; Guidelines; Instruments; Microcomputers; Programmable control; Relays; Safety;
Journal_Title :
Industry Applications, IEEE Transactions on
