Title :
A real-time language for ELS-2001 industrial controllers
Author :
Wong, P.-C. ; Yue, A.
Author_Institution :
Oxford Univ., UK
Abstract :
Describes the research, development and implementation of a high level language: task orientated programming (TOP) for controlling industrial processes. TOP is aimed at replacing ladder-logic diagrams with an English structured language, allowing the machine operator to express the operation in simple `English´. The objectives of this paper include: the concepts of TOP and how they relate to industrial applications; the firmware organisation and different types of I/O interface; the user-interface and its effects on the TOP compiler; and illustrate the language by means of a practical example. The scope of this paper is confined to industrial control application using TOP. The ELS-2001 project is a joint venture between Oxford University and British Autogard Ltd
Keywords :
high level languages; process computer control; program compilers; programmable controllers; real-time systems; user interfaces; ELS-2001; English structured language; I/O interface; PLC; TOP; compiler; firmware organisation; industrial process control; programmable logic controllers; task orientated programming; user-interface;
Conference_Titel :
Factory 2001--Integrating Information and Material Flow, 1990., Second International Conference on
Conference_Location :
Cambridge
Print_ISBN :
0-86341-704-3
