Product category:
Fieldbus systems, Fibre-optic systems
News Release from: Emerson Process Management | Subject: Advances in EDDL
Edited by the Processingtalk Editorial
Team on 27 April 2005
Demonstrating advances in EDDL
technology
The HART Communication Foundation and Emerson have demonstrated at Interkama the recent advances in EDDL technology, used on intelligent field devices like radar sensors and control valves
The current EDDL (Electronic Device Description Language) enhancements improve the display of information from intelligent field devices, such as the incorporation of images into displays, and support of graphs and charts to enable the calibration and configuration of complex devices such as control valves, radar level gauges, and variable frequency drives The enhancements also provide 'Persistent Data Storage', which allows for the archiving and retrieval of diagnostic data from storage
This article was originally published on Processingtalk on 29 Aug 2008 at 8.00am (UK)
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A Rosemount radar level gauge with HART communications protocol was used to demonstrate the advantages of the new EDDL technology.
Prior to the EDDL enhancements, additional software was necessary to view the tank spectrum, frequently used for advanced configuration of radar transmitters.
The demonstration showed that the enhanced EDDL technology performs the display functionality for advanced configuration without additional software.
In addition, the demonstration exhibited how the enhancements enable end users to achieve unsurpassed levels of interoperability across communication protocols, suppliers and products.
The EDDL extensions are built upon the existing IEC 61084-2 standard.
This approach of building on an existing standard has many benefits.
For example, it relieves device developers of the burden of designing and programming a graphic display system that must run under a variety of platforms and environments, from large Human-Machine Interfaces (HMIs) to the small handheld.
Instead, they can utilise common graphic display capabilities provided by EDDL commands.
Since many host systems today already implement EDDL-based graphic display systems, devices using the extended EDDL have a common look and feel with existing devices.
This permits uniform integration, configuration/setup, operation and diagnostics/maintenance - all very important in an interoperable, multi-vendor environment.
HART Communications Foundation is committed to EDDL and is actively working to enhance the technology with new tools and capabilities to further strengthen the platform and facilitate new product applications. Request a free brochure from Emerson Process Management ...
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