Title :
Design of PLCs for automated industrial systems based on discrete event models
Author :
Kang, Bong-Suk ; Cho, Kwang-Hyun
Author_Institution :
Div. of Electron. Eng., Ulsan Univ., South Korea
Abstract :
Ladder diagrams (LDs) have been widely used in industrial control systems as a programming language for programmable logic controllers (PLCs). However, the synthesis of LD itself mainly depends on the experience of the industrial engineer, which often results in unstructured or inflexible design. Hence, in this paper, we propose a ladder diagram transformation (LDT) algorithm which systematically produces LDs for PLCs based on discrete event models (DEMs) to enhance the structured and flexible design mechanism. Moreover, the LDT algorithm is convenient and easy to be implemented. The LDT algorithm is illustrated by considering the control of a point to point (PTP) control system
Keywords :
control system synthesis; discrete event systems; industrial control; programmable controllers; PLC design; automated industrial systems; discrete event models; flexible design mechanism; industrial control systems; ladder diagram transformation algorithm; ladder diagrams; point to point control system; programmable logic controllers; structured design mechanism; Algorithm design and analysis; Computer languages; Control systems; Counting circuits; Electrical equipment industry; Industrial control; Industrial electronics; Petri nets; Process control; Programmable control;
Conference_Titel :
Industrial Electronics, 2001. Proceedings. ISIE 2001. IEEE International Symposium on
Conference_Location :
Pusan
Print_ISBN :
0-7803-7090-2
DOI :
10.1109/ISIE.2001.931915
