Moxa’s EDS-828 and EDS-516A series industrial Ethernet switches have been selected for deployment in the Shanghai M7 metro line, one of the major transport links to the 2010 World Expo. The entire M7 line uses Ethernet-based signal control that provides a centralised monitoring system for real-time, non-stop redundant operations and remote control services. “Metro stations are often kilometres apart, so long-haul transmission fibre Ethernet was the best way to offer instant connectivity. In addition, in order to communicate between the stations, the operator wanted Layer 3 Ethernet switches to easily segment the network, avoid the influence of broadcast storms between different metro subnets, and increase network efficiency,” explained Leo Tsao, senior director of Moxa power and transportation division.
Moxa’s EDS-828 Layer 3 Gigabit modular Ethernet switches were chosen for installation in the control system. With its optimised routing performance, the Moxa EDS-828 can easily bridge different metro station subnets. The two EDS-516A series Ethernet switches installed in each station are grouped with Ethernet switches from other stations to form a dual redundant ring topology that stretches across the entire metro line. The dual ring network architecture provides maximum redundancy with a fast recovery time of less than 20 ms.
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...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...How IEC 61162 standards are building smarter fleets RJ Connect
IT in Manufacturing
The maritime industry is moving through one of the most important transformations in its history. Ships that once operated as collections of independent systems are now evolving into integrated digital ecosystems, where navigation, monitoring and control systems must exchange a constant flow of data. At the heart of this transformation lies the IEC 61162 family of standards.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version