Emerson 475 User Manual page 118

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Data Link Time
Data Link Time is a network-wide time periodically distributed by the
LAS to synchronize all device clocks on the bus.
Device
See HART device or fieldbus device.
Device configuration
Parameters that define the physical attributes and operating
characteristics of a device. It does not include dynamic data.
Device configuration management
A licensed feature that lets you save up to 1000 HART device or user
configurations, depending on file size, to a System Card. It also lets
you print and back up (save) the configurations using the Field
Communicator Easy Upgrade Utility.
Device description (DD)
A set of instructions written in the HART or F fieldbus
OUNDATION
Device Description Language that defines the parameters, commands,
and methods that a host application uses to communicate with a HART
or F fieldbus device.
OUNDATION
DDL
Device Description Language. A specialized programming language
used to write device descriptions for HART or F
OUNDATION
fieldbus-compatible devices. See also Device Description.
Easy Upgrade option
A licensed feature that lets you use the Field Communicator Easy
Upgrade Utility to update the system software and DDs in your 475
Field Communicator. See your sales representative or the Online
Licensing feature in the Easy Upgrade Utility for more information on
purchasing this license.
EDDL
Electronic Device Description Language. Enhancements to the EDDL
language enable device information to be displayed as images, charts,
and graphs.
Event capture file
An ASCII file (.rec file) that captures your keystrokes, display windows,
and protocol communication messages on a 475 Field Communicator.
Event Capture files can be useful in diagnosing problems. To create
Event Capture files on a 475, you must enable the Event Capture
function from the Settings menu.