A multi-level reconfiguration control for holonic PLC

Author

Zhang, Xiaokun ; Norrie, Douglas H. ; Brennan, Robert W. ; Xu, Yuefei

Author_Institution

Dept. of Mech. & Manuf. Eng., Calgary Univ., Alta., Canada

Volume

3

fYear

2000

fDate

2000

Firstpage

1762

Abstract

The system architecture for a holonic PLC (HPLC) is presented and the multi-level reconfiguration control mechanism for a function block (FB)-based PLC is detailed. Based on IEC-1499 FB model concepts, the concurrent process mechanism for FB configuration control and FB process control is put forward. In the presented approach, the dynamic reconfiguration control of the HPLC is handled at three control levels: function, component, and task control. Separating configuration control at the component level from task level facilitates a code-based component maintenance and task state transition process. It can carry out on-the-fly control for the HPLC by means of task level operation and smooth state transition cooperating with associated class maintenance under the limited capability of object oriented class dynamic configuration

Keywords

flexible manufacturing systems; process control; production engineering computing; programmable controllers; IEC-1499 FB model concepts; class maintenance; code-based component maintenance process; concurrent process mechanism; configuration control; dynamic reconfiguration control; function block-based PLC; holonic PLC; multi-level reconfiguration control; object oriented class dynamic configuration; process control; system architecture; task state transition process; Adaptive control; Control systems; Electronic mail; Level control; Manufacturing systems; Process control; Programmable control; Pulp manufacturing; Scheduling algorithm; Uniform resource locators;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems, Man, and Cybernetics, 2000 IEEE International Conference on

Conference_Location

Nashville, TN

ISSN

1062-922X

Print_ISBN

0-7803-6583-6

Type

conf

DOI

10.1109/ICSMC.2000.886364

Filename

886364