Instruments and Control
VŠB-TU Ostrava, 6.5.2003
| Annotation of paper No. 8 |
|---|
| Title: | A schema for the improved allocation of functionality in distributed industrial process-measurement and control systems |
| Author(s): | CLADERA, Rafel & FREY, Georg |
| Text: | In modern, flexible, distributed automation systems there is an increasing variety of hardware structures. Hardware components of different complexity ranging from intelligent sensors and actuators with very limited computational power to high-end industrial PCs are interconnected via various networks. The type of networks ranges from simple sensor actor networks (ASI) to complex networks like Ethernet. Faced with such a hardware environment it is a very challenging task for the control system designer to allocate the required control functions (software) to the hardware resources. The development of methods for optimized allocation of given control functions into a given control hardware structure and the development of methods for designing, structuring and dimensioning of a control system (hardware incl. fieldbus) for a given control task are the main objectives of the presented project. As a prerequisite for the allocation of software functions to hardware resources, the functions have to be described in a hardware-independent form. The IEC 61499 Function Block Standard provides an architecture and a model for the hardware independent description of distributed control systems. The paper will give an introduction into the state-of-the-art of industrial process-measurement control systems (IPMCSs). Based on this, a proposal for an enhanced engineering support system structure will be presented. Furthermore, a review of the concepts of IEC 61499 and its possible application in the presented project will be given. The presented work is supported by the European Union with a Marie Curie Fellowship. |