Computer-aided Design,  Visualized
Simulation  And Verification Of Relay Ladder
Diagrams  In  Sequential  Control Systems

G. Vafeidis; S. Manesis

doi:10.2495/VID950281

Computer-aided Design, Visualized Simulation And Verification Of Relay Ladder Diagrams In Sequential Control Systems

Price

Free (open access)

Transaction

WIT Transactions on Information and Communication Technologies

Volume

Pages

Published

1995

Size

477 kb

Paper DOI

10.2495/VID950281

WIT Press

Author(s)

G. Vafeidis & S. Manesis

Abstract

A computer-aided design program has been developed to design and test relay ladder diagrams used in industrial applications. By using a personal computer the engineer can develop and extensively test and alter a relay ladder diagram before installing it in the industry. The program can simulate the operation of a diagram, while the user can select the visualized operation to be performed either in real time mode or in a step-by-step procedure. In order to establish the proper operation of the sequential control system, the program has also a verification part which checks sequential logic for various scenarios of inputs and determines possible errors. 1 Introduction Programmable Logic Controllers (PLCs) are

Keywords

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Code

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