Anybus X-gateway Manuel du réseau - Page 7

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Description

2.1

Overview

The Anybus X-gateway PROFIBUS Slave Interface has complete slave functionality according

to the DP-V1 expansions of EN 50170, supporting standard DP functionality as well as acyclic

Class 1 and Class 2 services.

The interface exchanges data via two memory buffers:

Input Buffer

Output Buffer

Fig. 1

Data flow

Data from the X-gateway can consist of cyclical (DP) and acyclical (DP-V1) I/O data. The

interface can exchange up to 244 bytes of I/O data in each direction, although the total data

size (input + output) cannot exceed 344 bytes. The actual byte sizes of input and output data

and the amount of cyclical versus acyclical I/O data are set up in Anybus Configuration

Manager to match the application.