towards an engineering tool for implementing reusable distributed control systems
The IEC model for distributed control systems (DCSs) was adopted for the implementation of a new generation engineering tool. However, it was found that this approach does not exploit all the benefits of the object and component technologies. In this paper, we present the enhanced 4-layer architecture that proved to be very helpful in the identification of the key abstractions required for the design of the new generation of function block based engineering tools. Despite being IEC-compliant, the proposed approach introduces a number of extensions and modifications to the IEC-model to improve the development process. The Unified Modelling Language is exploited during the requirements phase of DCSs, but the use of the FB construct is confected during the design phase.
engineering tool distributed control systems function block corfu ess corfu fbdk iec61499 case tool