10-78 Handling, Diagnostic and Service Functions MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
Communication via RS485 Interface
The communication via the RS485 interface allows realizing a serial bus
with the following data:
• it is possible to connect up to 31 drives with one bus master
• transmission rates from 9600 to 115,200 Baud
• max. transmission distance 500 m
• semi-duplex operation via 2-wire line
• ASCII protocol or SIS protocol (8-bit each)
• parity bit according to parameter P-0-4095, RS-232/485 Parity
• one stop bit
Note: Communication via RS485 is only possible in conjunction with
an external RS232/485 converter.
Operating Several Drives with DriveTop
• commissioning several drive controllers without plugging the interface
cable into a different connection (central parameterization and
diagnosis connection)
• realizing a central PC-based visualization unit
PC with DriveTop
PLC
drive
controller
n
drive
controller
n+1
drive
controller
n+2
drive
controller
n+3
RS232
RS485 bus
master communication
(e.g. parallel I/O or field
bus)
RS232/RS485
converter
RS232/
RS485
converter
RS232/
RS485
converter
RS232/
RS485
converter
RS232/
RS485
converter
DF0021v1.fh7
Fig. 10-37: Operating Several Drives with DriveTop
Features
Advantages for Application
Courtesy of CMA/Flodyne/Hydradyne ▪ Motion Control ▪ Hydraulic ▪ Pneumatic ▪ Electrical ▪ Mechanical ▪ (800) 426-5480 ▪ www.cmafh.com
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