Architecture for Multiagent-Based Control Systems D. Oviedo, M.C. Romero-Ternero, M.D. Hern´ andez, A. Carrasco, F. Sivianes, and J.I. Escudero Abstract. This paper presents a multiagent architecture that covers the new require- ments for the new control systems such as the distribution and decentralisation of system elements, the definition of communications between these elements, the fast adaptation in the control and organizational changes. The agents in this architecture can cooperate and coordinate to achieve a global goal, encapsulate the hardware in- terfaces and make the control system easily adapt to different requirements through configuration. Finally, the proposed architecture is applied to a control system of a solar power plant, obtaining a preliminary system that achieve the goals of simplic- ity, scalability, flexibility and optimization of communications system. 1 Introduction The control systems have evolved to a complex system that employs more and more equipment and sensors. The hardware diversity of the sensors and actuators greatly affects the portability of the control system and the complexity may differ from each other. A goal of control systems is to enable the integration of different types of de- vices in a scalable and flexible system. The problem is how communications among the different parts of the system is organised and optimized [1]. To resolve prob- lems in the control system it is necessary have knowledge and experience working in the field. In this paper, the solutions to control problems will be the responsibil- ity of different agents in the system. The agents should handle the problem domain knowledge and be able to communicate this knowledge in order to provide efficient solutions and recommendations. An architecture is proposed that presents an orga- nizational scheme of agents and a global communication protocol. The architecture was constructed to support a wide range of control systems; however, this paper focuses on its application in the control of a solar power plant. D. Oviedo, M.C. Romero-Ternero, M.D. Hern´ andez, A. Carrasco, F. Sivianes, and J.I. Escudero Departamento de Tecnolog´ ıa Electr´ onica, Universidad de Sevilla, Spain e-mail: oviedo@dte.us.es,mcromerot@us.es,marilohv@dte.us.es , acarrasco@us.es,sivianes@dte.us.es,ignacio@us.es