The continuing saga of EDDL vs. FDT/DTM

The September issue of the FDT Group Newsletter reports on the WIB study of eEDDL vs. FDT/DTM. From the FDT newsletter: "The conclusions presented at the meeting are very positive for FDT Technology. Details will be given in the final report; however, the highlight is that FDT proves to be an intrinsically more powerful technology:- eEDDL offers required data accessibility and functionality as used in commissioning of FF smart devices - FDT/DTM offers required data accessibility and extended functionality as used in commissioning and maintenance of FF smart devices in a very effective manner. Recommendations were unambiguous: FDT is the right platform for advanced applications. We should not try to stretch the capabilities of eEDDL to perform tasks for which it is not fit. Vendors should more exploit the opportunities to implement intelligence in DTMs."
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  • <p>The WIB test was premature as evident by the fact that one FDT frame was still missing the required patches, EDDL software and devices did not yet implement the full set of EDDL functionality, and only one Fieldbus device supported with both EDDL and DTM was available for test. Thus all EDDL bells and whistles were not seen this first test, but did very well on interoperability which is most important. The true capability of EDDL technology was not yet fully utilized. However, at ISA Expo 2008 visitors could see for themselves how far implementation of EDDL technology has now come in systems and devices from many vendors. In the mean time, a test by the independent German test institute BIS Prozesstechnik (formerly Infraserv Hoechst) had already confirmed that EDDL implementations meet high-level user requirements such as NAMUR NE 105. EDDL implementations from leading vendors have come a long way. Many great examples of EDDL have emerged. EDDL has demonstrated to have the power the device manufacturer needs to make the device display in systems the way they want it to, giving easy access to all features. Check out this video:<br /><a href=""></a><br /> It shows wizards, conditionals, multi-pen graphs, context sensitive help, etc. for commissioning, setup, and diagnostics in advanced devices like valve positioners, radar level transmitters, bus diagnostics modules, variable speed drives, and machinery health transmitters. There are other videos showing how data can be saved and exported and how device and plant related documents are accessed. Another video clips shows how the content is the same in all systems because it is controlled by the device manufacturer, not the system manufacturer. There is also a clip explaining how device alarm indication works regardless of which page, device, or none the technician looks at. All this while maintaining the benefits of original DD: investment protection, support in handheld communicators as well as system software, easy to load files, etc.<br /></p>


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