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MELSEC iQ-R Series

PROFIBUS®-DP Module

PROFIBUS® is an industrial fieldbus developed and maintained by the PROFIBUS&PROFINET International (PI). PROFIBUS® is a well-known and widely used network originating from Europe.

Connection to PROFIBUS® compatible devices

This module can be used as a PROFIBUS®-DP master station supporting integration of compatible slave devices into the control system. In addition, the module can be used as a slave station in the PROFIBUS® system.


PROFIBUS®-DP module specifications

Item RJ71PB91V
PROFIBUS®-DP station type Class 1 master or slave station (either one can be selected)
Transmission speed (bps) 9.6k...12M
Max. number of connectable modules (per segment) 32 (including repeaters)
Max. number of connectable modules (per network) 126 (including master and slave stations)
I/O data size
Master station Max. input data (byte) 8192 (max. 244 per slave station)
Max. output data (byte) 8192 (max. 244 per slave station)
Slave station Max. input data (byte) 244 (total I/O data: max. 384)
Max. output data (byte) 244 (total I/O data: max. 384)
Setup software
PROFIBUS® configuration tool SW1DNN-PROFIBDCT-ED*1
*1: To obtain the software, please contact your local Mitsubishi Electric office or representative.