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News Release from: ISA:Instrumentation Systems and Automation Society | Subject: EDDL first draft
Edited by the Processingtalk Editorial
Team on 19 October 2006
ISA SP104 committee releases EDDL draft
The ISA new standards committee that is working to adopt the generic device description language specified by IEC 61804 for device integration has announced the release of their first draft for ballot
The ISA new standards committee that is working to adopt the generic device description language specified by IEC 61804 for device integration has announced the release of their first draft for ballot "The committee wants to work toward the adoption of the IEC 61804 standard as an ANSI/ISA standard," said committee Chair Terry Blevins
This article was originally published on Processingtalk on 8 Aug 2003 at 8.00am (UK)
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"We're also committed to provide information that will help users and integrators fully utilise the EDDL interface to support a wide gamut of intelligent devices".
The newly released draft ANSI (ISA) 61804 standard covers an operating system independent language for declaring device parameters and their dependencies, device functions, graphical representations, and interactions with control devices.
The language, Electronic Device Description Language (EDDL), is used to create an Electronic Device Descriptions (EDD) file for intelligent devices to integrate these with control systems and portable tools for use in the field.
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These XML-like files may be used with handheld communicators, configuration software, and intelligent device management software to support information retrieval, diagnostics, performance analysis, operational statistics, parameter handling, operation, range setting, calibration trim, simulation, override, and monitoring of automation system components.
The applications of EDDL may include simple as well as sophisticated devices such as generic digital and analog input/output modules, motion controllers, human machine interfaces, transmitters, on-off and regulating valves, closed-loop controllers, encoders, hydraulic valves, and programmable controllers.
"The ISA-SP104 committee has worldwide participation and is committed to harmonising its on-going work with the IEC Working Group that has created and is maintaining this standard," said Terry Blevins.
Ultimately, tools based on EDDL enable faster device commissioning and loop checkout, as well as reducing field trips and eliminate unnecessary maintenance.
Benefits from EDDL-based tools match corporate strategies such as reduced maintenance cost, quality improvement, increased throughput, and reduced downtime.
The Electronic Device Description Language is a result of co-operation among the consortia of Fieldbus Foundation, HART Communication Foundation, Profibus Nutzerorganisation, and the OPC Foundation.
"We are pleased to see the progress of the SP104 committee.
The EDDL Cooperation Team (ECT) is working on extensions which include mapping EDDL into OPC UA servers.
This enables OPC UA client applications protocol independent access to Fieldbus Foundation, Hart and Profibus devices that end users have been demanding," said ECT coordinator Dave Glanzer.
Enhancements recently added and officially approved as part of the IEC 61804 maintenance cycle extend the capabilities of EDDL to provide an industry standard solution for advanced visualisation of intelligent device information.
Through this cooperative effort, the proven integrity of existing EDD technology is maintained across all three communication technologies (Profibus, FF, and HART).
There are more than 15 million installed devices that utilise EDDL.
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