Cost-effective managed switches
April 2010
Fieldbus & Industrial Networking
Profitek has introduced a Hirschmann RSB20 family of managed basic switches to offer overall cost efficiency coupled with high operational safety and availability in a wide range of applications.
The new family comprises 32 models distinguished by the number and type of ports offered as well as by their factory settings for EtherNet/IP and specific operating temperature ranges. All RSB20 switches support Fast Ethernet (10/100 BASE-TX, 100 BASE-FX) and offer both comprehensive management and redundancy modes as well as various different functions for convenient configuration and diagnostics. Supplied in a rugged and compact housing, they can be mounted on standard DIN rail.
Redundancy procedures, such as HIPER Ring, MRP (IEC ring function) and Rapid Spanning Tree, provide for high network availability. Access control is realised by means of SNMP V3. CLI (Command Line Interface), web browser and software tools, including HiVision or HiDiscovery, serve for comprehensive management, configuration and diagnostic functions.
Basic switches are now available for customised communications solutions. “While these switches complement our portfolio at the lower end, they require no compromises in quality, as demonstrated by an excellent MTBF (Mean Time Between Failures) of more than 50 years,” says Profitek’s sales director, Fons de Leeuw. “The family provides an entry into the segment of managed switches at an attractive cost, since customers pay only for the range of features they really need.”
Depending on the version, the switches feature eight or nine ports and up to three fibre uplinks. User can select between RJ45 connections, fibre uplinks for single or multimode and ports for SFP fibre optical transceivers. Passive cooling (no fans) and a redundant 12/24 VDC power supply ensure high operational safety.
All configuration data can be saved and recalled, if required, through a serial interface connecting to the ACA 11 auto-configuration adapter. The versatile, cost-efficient new family finds a fit in a wide range of applications, such as those found in mechanical engineering and the wind energy industry.
Operating temperature range is either 0 to 60°C or -40 to +70°C. Housing dimensions are 47/74x135x111 mm.
For more information contact Fons de Leeuw, Profitek, +27 (0)12 664 4998, [email protected], www.profiteksa.com
Further reading:
Introduction to Part 2 loop signatures and process transfer functions
Fieldbus & Industrial Networking
The previous series of loop signature articles dealt with the basics of control loop optimisation, and concentrated on troubleshooting and ‘SWAG’ tuning of simple processes. In this new series, consideration will be given to dealing practically with more difficult issues like interactive processes, and with processes with much more complex dynamics.
Read more...
Siemens sets new standards in drive technology
Fieldbus & Industrial Networking
Siemens is setting new standards in industrial drive technology with the launch of its new high-performance drive system, Sinamics S220. This offers a seamless and innovative drive system with comprehensive simulation and analysis capabilities and advanced connectivity features that enable full integration into digital work processes.
Read more...
PC-based control in the plastics industry
Beckhoff Automation
Fieldbus & Industrial Networking
Nissei Plastic, an injection moulding machine manufacturer based in Japan is implementing a worldwide tend towards open automation systems from experienced specialists using PC and EtherCAT-based control technology from Beckhoff.
Read more...
Loop Signature 31: Non-linearity in control loops (Part 2)
Michael Brown Control Engineering
Fieldbus & Industrial Networking
This article is a continuation of Loop Signature 30 published in the last issue in this series, exploring reasons for non-linearities which may be encountered in feedback control loops
Read more...
PC-based control optimises robotic parts handling on plastics machinery
Beckhoff Automation
Editor's Choice Fieldbus & Industrial Networking
NEO is a cartesian robot developed by INAUTOM Robótica in Portugal for parts removal on plastics machinery. Its aim is to increase system productivity. NAUTOM Robótica has entered into a strategic partnership with Bresimar Automação to increase the working speed of the cartesian robots using advanced control and motion solutions from Beckhoff. The result is a comprehensive, future-proof automation solution for its entire family of cartesian robots.
Read more...
PC-based control for flat wire motors for electric vehicles
Beckhoff Automation
Fieldbus & Industrial Networking
Special machine manufacturer, ruhlamat Huarui Automation Technologies unveiled the second generation of its mass production line for flexible stators with bar winding. This enables extremely short production cycle and line changeover times, supported by PC- and EtherCAT-based control technology from Beckhoff.
Read more...
Case History 200: The final case history – desuperheater control problem.
Michael Brown Control Engineering
Editor's Choice Fieldbus & Industrial Networking
For this final article I have chosen to relate a problem that existed in a desuperheater temperature control on a boiler in a petrochemical refinery.
Read more...
PC-based control technology in additive manufacturing
Beckhoff Automation
Editor's Choice Fieldbus & Industrial Networking
As an open control platform, PC-based control supports different engineering approaches, including low-code programming. The machine builder, Additive Industries uses this to create the code for the TwinCAT runtime of its 3D printers.
Read more...
Suppression and safety solutions for fire and gas in mission-critical industries
Fieldbus & Industrial Networking
By representing world-leading brands and focusing on fully integrated, certified systems, HMA South Africa is positioning itself as a trusted partner in fire detection, suppression and explosion-proof safety solutions across the continent.
Read more...
Integrating fire alarm systems into building management systems
Beckhoff Automation
Fieldbus & Industrial Networking
Fire alarm systems work independently of the building automation system. Schrack Seconet has developed a flexible gateway using ultra-compact industrial PCs and TwinCAT from Beckhoff, which can be used to flexibly convert a customer-specific communication protocol to a wide range of transmission standards.
Read more...
printer friendly version