Introduction, General, Bus modules – NORD Drivesystems BU2200 User Manual

Page 6: Table 2: hardware overview, 1 introduction, 1 general, 2 bus modules

1 Introduction

BU 2200 GB-3813

1. Introduction

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1.1 General

Modern field bus systems, microcontrollers and communication networks have had a great influence
on automation systems and have resulted in greater flexibility, availability, and ultimately, a reduction
in costs.

The widespread use of PC-based control only became possible with the availability of field bus
systems. With increasing control unit performance, the classic field bus ultimately became the limiting
criterion for the entire system. It was therefore an obvious step to adapt Ethernet technology, which
provides high rates of data transmission in IT applications, to the field of automation.

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The bus system

POWERLINK is an industrial Ethernet solution, which was designed for the unified and consistent
integration of all communications relating to modern automation. It is suitable for all conceivable
applications in mechanical and plant engineering, as well as for applications in the processing
industry. A POWERLINK network integrates all components for industrial automation, such as PLCs,
sensors, I/O modules, motion controllers, safety controls, safety sensors and actuators, as well as
visualisation systems. As not only process data are transferred in a POWERKINK cycle, but rather in
its asynchronous phase a firmly reserved time slot is available for the transfer of any type of user data
such as data which is not time-critical, e.g. service data for remote maintenance or configuration of
devices. Likewise, devices can be integrated into the network, which do not directly belong to the
automation level, for example video cameras for the safety control of operating areas. With a suitable
gateway, data from other field buses can be transferred via the asynchronous phase, so that different
networks can be integrated.

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1.2 Bus modules

Specific bus modules are available as interfaces between the field bus system and the NORD system
bus or the NORD frequency inverter. A document exists for each module (Technical Information / Data
Sheet), which includes the technical data, as well as installation and configuration information
(

www.nord.com

Name

Part. No.

Remarks

Document

SK CU4-POL

275 271 018

for frequency inverters SK

180E … SK 2xxE (internal)

TI 275271018

SK TU3-POL

275 900 150