Mitsubishi Electric FX2N-32CAN, Training Manual

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17 PROFIBUS/DP Communication
The open PROFIBUS/DP network enables extremely fast data exchange with a very wide vari-
ety of slave devices, including remote digital I/Os, remote analog I/Os, frequency inverters and a
range of other devices from third-party manufacturers. Of course, PROFIBUS/DP slaves from
MITSUBISHI ELECTRIC can also be connected to master devices from other manufacturers.
The installation of remote digital or analog I/Os helps to reduce costs for wiring.
Structure
The maximum coverage of a bus segment is 1200 m (at a maximum of 93.75 kbit/s). Up to 3
repeaters are allowed. Thus the maximum distance between 2 stations is calculated with
4800 m.
Cable types
To help reduce costs PROFIBUS/DP uses RS 485 technology with shielded 2-wire cabling.
17.1
Configuring the PROFIBUS/DP Network
In combination with the software GX Configurator DP the FX
3U
-64DP-M master unit as well as
master modules from the A series or the MELSEC System Q give you user-friendly
plug-and-play technology. The configuration software is self-explanatory, using a graphical
model for setting up the network. You simply select the slave unit, assign the station numbers
and specify where the information is stored in the master station.
In this chapter the configuration of a PROFIBUS/ DP master module FX
3U
-64DP-M installed in a
FX
3U
base unit is shown. Connected to the master module is a slave station consisting of digital
and analog modules of the MELSEC ST series. For more information of the ST series please
refer to the Technical Catalogue Networks, art.-no. 136730.
햲
Start GX Configurator DP and open a new project.
Training Manual GX IEC Developer 17 - 1
PROFIBUS/DP Communication Configuring the PROFIBUS/DP Network