|Electronic Device Description Language||Specification||Description: www.eddl.org is supported by Foundation Fieldbus, Hart Communication Foundation, Profibus International and the OPC Foundation. EDDL is a language used to define the properties of automation systems components. EDDL has been standardized by the IEC (IEC 61804-3). This is the place to start if you want to learn about EDDL. There are a number of white papers and articles to bring you up to speed. We recommend that you start with the EDDL Overview by Terry Blevins.|
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Description: The Fieldbus Foundation describes itself as "a not-for-profit corporation consisting of over 350 leading process and manufacturing automation companies worldwide whose major purpose is to provide an open and neutral environment for the development of a single, international, interoperable fieldbus. In this environment, end users, manufacturers, universities and research organizations are working together to develop the technology, provide development tools, support and training, coordinate field trials and demonstrations, and enable product interoperability."
Dues: sliding scale from $1K to $60K per year.
URL: http://www.fieldbus.org/ index.html
ReviewText: We had never heard of Fieldbus, and had to look it up. Here is what Wikipedia has to say:
"A Fieldbus is an industrial network system for real-time distributed control.
A complex automated industrial system - say a manufacturing assembly line - usually needs an organized hierarchy of controller systems to function. In this hierarchy there is usually a Human Machine Interface (HMI) at the top, where an operator can monitor or operate the system. This is typically linked to a middle layer of programmable logic controllers (PLC) via a non time critical communications system (e.g. Ethernet). At the bottom of the control chain is the fieldbus which links the PLCs to the components which actually do the work such as sensors, actuators, electric motors, console lights, switches and contactors."
Once registered on the Fieldbus site, you can download a number of white papers and technical guides, including a set of System Engineering Guidelines.