Research on Fieldbus Device Integration Based on EDD and FDT

Abstract

Aimed to the needs for interoperability and comprehensive integration on fieldbus, On the basis of introducing the characteristics of EDD ( Electronic Device Description)and FDT (Field Device Too1), an integration model based on EDD and FDT is proposed. Through embedding the EDDL (Electronic Device Description Language) interpreter into the device DTM and adding the user interface generator module in the DTM UI (User Interface), when the interpreter parse an EDD file, in terms of contents of the device description the intermediate data structure is generated, and by interacting with the viewbuilder user interfaces are automatically generated, and then the operation for the device with EDD can be implemented. As a consequence, the FDT frame application support both DTM (Device Type Manager) and EDD. Inner logic of the model is clarified, and the implementation of interpreter and user interface is specified in detail. The DTM based on EDD can be easily integrated into existing FDT frame application, attaining a purpose of flexible and wide device integration.