The industry has developed two technologies that just may streamline the insertion of applications written by device vendors' experts: an enhanced electronic device description language (EDDL) and the field device tools (FDT) protocol."Maintenance users now have a means to understand what is happening to the device or asset in the context of what its vendor has determined is important," says John Yingst, product manager for asset management at Phoenix-based vendor Honeywell Process Solutions.Although EDDL has been with fieldbus technology since its inception as a means of describing the devices connected to it, there was no systematic way of categorizing and interpreting the parameters.供销商自创计划DD文档需要软件与设备并受限与设备交互作用范围类似C语言增强EDDL生成应用系统,支持它的各个系统应可移植Yingst.FDT由FDT集团在比利时Diegem发布,FDT适配设备软件(称设备类型管理器或DTM)可用支持FDT的任何语言写入,包括eddl
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