ISA NEWS RELEASE
Contact: Jennifer Infantino
ISA SP104 Committee Releases EDDL Draft for Ballot
Research Triangle Park, NC (17 October 2006) -- ISA's new standards committee that is working to adopt the generic device description language specified by IEC 61804 for device integration has just announced they are releasing their first committee 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. "We're also committed to provide information that will help users and integrators fully utilize 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. 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 harmonizing its ongoing 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 cooperation among the consortia of Fieldbus Foundation, HART Communication Foundation, PROFIBUS Nutzerorganisation e.V., 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 visualization 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 utilize EDDL.
Founded in 1945, ISA (www.isa.org) is a leading, global, nonprofit organization that is setting the standard for automation by helping over 30,000 worldwide members and other professionals solve difficult technical problems, while enhancing their leadership and personal career capabilities. Based in Research Triangle Park, North Carolina, ISA develops standards; certifies industry professionals; provides education and training; publishes books and technical articles; and hosts the largest conference and exhibition for automation professionals in the Western Hemisphere. ISA is the founding sponsor of The Automation Federation (www.automationfederation.org).