Siemens 411 10.13 PROFIBUS

10 Engineering Information Issue 03/01
MICROMASTER 411 & COMBIMASTER 411 Operating Instructions
148 6SE6400-5CA00-0BP0
10.13 PROFIBUS
10.13.1 Overview
PROFIBUS is an open standard communication protocol which has been designed
and developed for use in general industrial applications. The standard is defined in
EN50170 (volume 2) and has been developed, agreed and adopted by many
manufacturers worldwide.
PROFIBUS control is now available for a wide variety of products, from many
different companies manufacturing drives, actuators, valves, as well as
Programmable Logic Controllers (PLCs) and other system controllers. PROFIBUS
operates over a variety of hardware interconnections such as fiber optics and
RS485.
There are three versions of PROFIBUS: FMS, DP and PA and all these versions
will work together. The most commonly used version is the DP version, intended
for general industrial applications. This is the version supported by Siemens Drives.
10.13.2 Using the PROFIBUS
In order to connect to a PROFIBUS system, a PROFIBUS module is required. This
module mounts on the side of the drive and uses a TTL serial port to communicate
with the drive.
The drive may be controlled and monitored via the main PROFIBUS system.
A PROFIBUS system offers the following advantages:
 Open, clearly defined system.
 Many different products from many different manufacturers.
 Well proven in many industrial applications.
 Reduced wiring; easy set up re-programming, monitor and control.
 Ease of commissioning with the SIMATIC S7 PLC System at a later date.
 Flexibility to expand and modify the automatic system at a later date.
 Remote diagnostics reduce the downtime in the event of a problem.
 Very fast; up to 12 Mbaud.
 Up to 125 slaves on one DP system.
 Single or Multi-master operation.
 One to one or broadcast communications.
 Support and development software available.
 Routing Functionality