Каталог Weidmuller: Electronics - Analogue Signal Conditioning

Technical appendix/Glossary
FDT/DTM – The standard solution for device configuration
FDT/DTM – The standard solution for device configuration
Field Device Tool (FDT)
FDT technology specifies and standardises the integration of
communicating devices from different manufacturers. It makes
use of a superimposed device management program. The key
feature is its independence from the communication protocol
and software used by the device and the host system. FDT
allows access to any device from any host using any protocol.
Device Type Manager (DTM)
Device manufacturers make available a Device Type Manager
(DTM) software driver for each device or device group. The
DTM specifies all device-specific information, functions and
rules (such as the device structure, communication capabilities,
internal dependencies and the human-machine interface (HMI)).
DTMs define functions for access to device parameters, troubleshooting,
configuration and operation of devices. DTMs are
available which can be simple GUIs for setting device parameters
or more complex applications that are capable of carrying
out calculations for diagnostic or maintenance purposes.
There are several different types of DTMs:
• Device DTM
This is a "normal" field device that uses communication
channels to communicate with the connected physical device.
• Communication DTM
This is a communications device that provides communication
using communication channels. Communication channels
provide access to the communications infrastructure (such
as PC interface cards or modems). They are used by device
DTMs or gateway DTMs for communication services.
• Gateway DTM
This is a gateway device. It allows data to be exchanged
between two communication channels. For example,
this could be a gateway between PROFIBUS-DP and
PROFIBUS-PA.
The DTM is loaded and started up within a FDT container
program or "frame" application.
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