Fdt/Dtm Concept; Figure 20: Fdt/Dtm Communication Principle - WAGO I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-484 2AI 4-20mA HART Ex i
8.2

FDT/DTM Concept

FDT is an abbreviation for "Field Device Tool". This is frame application software,
which can be used to parameterize, configure and control fieldbus devices
separately from the specific communication technologies of the different
fieldbusses.
In order to establish communication with the individual devices in an FDT
application and from there to be able to access the adjustable device parameters,
the application requires an addition in the form of a software component for each
field device.
The specific functions and dialogs of a field device for parameterization,
diagnosis and maintenance, including the user interface, are reproduced in such
a software component, which is referred to as a DTM (Device Type Manager).
Comparable with device driver software, the DTM is supplied with the device by
the device manufacturer and installed on the PC by the user. The DTM is
subsequently loaded into the FDT frame application from where it is executed.
FDT/DTM is an open concept, which encourages a uniform operating concept
within an overall control program in which individual components from different
manufacturers can work together.
WAGO provides a simple and convenient FDT frame application in the form of
the "759 370 WAGOframe FDT Frame Application" software.
Additional Information about WAGOframe
Please read the "759 370 WAGOframe FDT Frame Application" manual for
detailed information on the installation and use of the "759-370 WAGOframe"
Software. You will find this on the Internet at:
www.wago.com
By means of special gateway DTMs, the frame application is additionally
provided with further communications functions for connecting the host system to
the particular fieldbusses used (e.g., HART, PROFIBUS).
WAGO provides a gateway DTM for PROFIBUS (759-360 Profibus/HART
Gateway DTM) for this purpose.

Figure 20: FDT/DTM Communication Principle

Operating Modes 63
Manual
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