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Proceedings Paper

Computer Aided Design Of Relay Ladder Logic Via State Transition Diagram
Author(s): R. Devanathan; Foo Yung Kuan; Chang Chiew Jun; Choo Siew Aun
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Paper Abstract

Programmable logic controllers (PLCs) are commonly programmed using relay ladder logic. There are many disadvantages to this approach. The state transition diagram affords a systematic means of providing precise and unambiguous specification while at the same time yielding a good system overview for ease of troubleshooting and maintenance. Computer aided logic design techniques help to automate the process of relay logic design for the state transition diagram. A software package which runs on an IBM PC/compatible machine has been developed to automatically transform the state diagram specification into relay ladder logic and the associated (PLC dependent) source code.

Paper Details

Date Published: 19 October 1987
PDF: 9 pages
Proc. SPIE 0857, IECON'87:Automated Design and Manufacturing, (19 October 1987); doi: 10.1117/12.943260
Show Author Affiliations
R. Devanathan, Nanyang Technological Institute (Singapore)
Foo Yung Kuan, Nanyang Technological Institute (Singapore)
Chang Chiew Jun, Nanyang Technological Institute (Singapore)
Choo Siew Aun, Nanyang Technological Institute (Singapore)

Published in SPIE Proceedings Vol. 0857:
IECON'87:Automated Design and Manufacturing
Victor K.L. Huang, Editor(s)

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