Title :
Fuzzy-control with a PEARL-based multi-loop controller
Author :
Beestermöller, H.J. ; Thiele, G. ; Becker, J.
Author_Institution :
Inst. of Autom. Technol., Bremen Univ., Germany
Abstract :
To serve the demand for fuzzy control components in automation systems, manufacturers extend the function block libraries of their multi loop and PLC software by respective function blocks. Other demands are for the openness of PLC software and its adaptation to the IEC 1131 standard which, for the first time, gives recommendations with respect to a task model and task communication. The unique idea of the PEARL PLC is to use an adequate high level real time language for PLC software design and implementation facilitating all mentioned user demands in a totally open form. Definition and verification of fuzzy components are described in the paper and further advantages of the use of high level real time languages in PLCs with respect to safety critical aspects are mentioned
Keywords :
computerised control; fuzzy control; high level languages; programmable controllers; real-time systems; safety-critical software; IEC 1131 standard; PEARL PLC; PEARL-based multi-loop controller; PLC software; PLC software design; automation systems; function block libraries; fuzzy components; fuzzy control components; high level real time language; safety critical aspects; task communication; task model; user demands; Automatic control; Communication standards; Fuzzy control; IEC standards; Manufacturing automation; Open loop systems; Programmable control; Software design; Software libraries; Software standards;
Conference_Titel :
Real-Time Systems, 1995. Proceedings., Seventh Euromicro Workshop on
Conference_Location :
Odense
Print_ISBN :
0-8186-7112-2
DOI :
10.1109/EMWRTS.1995.514294
