A real-time, multi-task programming language for microprocessor-based industrial process control

ABSTRACT

This paper presents an overview of the design of a real-time programming language whose purpose is to permit an inexperienced programmer to quickly and efficiently implement control of multiple, parallel industrial processes. The programming language is compiled on one microprocessor-based system and then executed on another. The language divides the program logic into two types: (1) combinational logic which requires both fast and frequent execution, and (2) sequential logic which is more powerful but proceeds more slowly. A discussion of the language design, development, syntax, and semantics is presented.

INDEX TERMS

Primary Classification:
  J. Computer Applications
  J.7 COMPUTERS IN OTHER SYSTEMS
      Subjects: Real time

Additional Classification:
  C. Computer Systems Organization
  C.5 COMPUTER SYSTEM IMPLEMENTATION
      C.5.3 Microcomputers
          Subjects: Microprocessors

  D. Software
  D.4 OPERATING SYSTEMS
      D.4.1 Process Management
          Subjects: Multiprocessing/multiprogramming/multitasking

  J. Computer Applications
  J.7 COMPUTERS IN OTHER SYSTEMS
      Subjects: Industrial control

General Terms:
Design, Languages, Theory