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Description of the Architecture

Introduction to PROFIBUS on Industrial PC

C79000-G8976-C068

3.5.5 The FDL Protocol

The FDL protocol is used for communication with PROFIBUS

components complying with PROFIBUS EN 50 170. The CP can be

operated as a master.

A distinction is made between management services and productive

services. With the management services you can make the local

settings required by the productive services. The productive services

allow data transfer between the various PROFIBUS stations. A list of

the services available can be found in the volume “FDL Programming

Interface”.

An application is created in the C/C++ programming language. The

FDL application can be written for MS DOS, for MS Windows 3.x, for

MS Windows 95, for MS Windows NT or for UNIX.

Area of Application

of the

FDL Protocol

Services of the

FDL Protocol

Creating an

Application

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