Lenze EMF2113IB - Manual (Page 5)

Introduction
1
Preface
1.2
L
1.2-1 EDSIBS-1.0-06/2003
1.2 Introduction
The current situation in mechanical system engineering requires an optimisation
of manufacturing costs. Therefore the modular design of machinery and systems
becomes more and more popular. Individual solutions can be found more easily
and at a more favourable price.
Optimum communication between the modules of a system is often achieved by
a fieldbus system for process automation. Lenze offers the following
communication modules for all common fieldbus systems:
l CAN (Lenze system bus)
l CANopen
l PROFIBUS-DP
l INTERBUS
l INTERBUS loop
l DeviceNet
l LON
l AS-i
The communication modules are especially designed for Lenze drive
components and flexible use. You can use the same communication modules for
Lenze servo inverters and Lenze frequency inverters.
This means for you: Easy communication.
You must only learn to know one communication system.
Handling is always the same.
You reduce your costs because you can make use of the knowledge gained once.
Trainings are only required once.
The planning time becomes shorter.
The decision for a fieldbus systems depends on many different factors. The
following chart will help you to find the solution for your application.
Machines which use bus lengths of more than 100 meters are often equipped with
INTERBUS or PROFIBUS-DP. The PROFIBUS-DP (Decentralised Periphery) is
always used together with a PLC – and the PROFIBUS master transfers, for
instance, the setpoints to the devices connected to the PROFIBUS (e.g. Lenze
controllers).
The process data is transferred to the sensors and actuators at the baud rate
typical for the PROFIBUS-DP (1.5 Mbit/s). Because of the data transfer method
and a telegram overhead, the bus cycle time at 1.5 Mbit/s is high enough to
control, for instance, conveyors. If the process data must reach sensors and
actuators more quickly, the PROFIBUS can also be operated at a baud rate of
max. 12 Mbit/s.
INTERBUS is mainly used in big systems (many devices connected to the bus
system)- for instance in the automobile industry. Its ring structure offers especially
good diagnostics options. It is possible to find out which device connected to the
bus is electromagnetically intereferred or whether there is an earth fault or short
circuit interferring the INTERBUS cable. Furthermore, INTERBUS has a baud rate
of 500kbit/s which is more efficient for process data transfer than comparable bus
systems. If you need extremely quick data transfer, INTERBUS can also be
operated at 2 Mbit/s.
Lenze fieldbus systems in
industrial applications
Help for your decision
PROFIBUS-DP
INTERBUS
Show/Hide Bookmarks