PLCs, DCSs & Controllers


EtherCAT master synchronisation

October 2008 PLCs, DCSs & Controllers

The EL6692 EtherCAT bridge terminal achieves distributed clock calibration between EtherCAT masters.

The EtherCAT Industrial Ethernet system offers industry leading performance and highly flexible topology characteristics. In complex machines and systems with several EtherCAT masters, data may have to be exchanged between individual EtherCAT systems or the distributed clocks of different systems may have to be synchronised. An ideal solution for these applications, the new EL6692 bridge terminal for the Beckhoff EtherCAT terminal system implements these tasks directly in the I/O arrangement.

EtherCAT masters such as the TwinCAT automation software suite from Beckhoff can exchange data in realtime via network variables. The EL6692 EtherCAT bridge terminal optionally provides this functionality directly in the I/O system. In addition to normal data exchange, the EtherCAT bridge permits distributed clock synchronisation (exact calibration of distributed clocks) between several EtherCAT masters, for example, in exact drive synchronisation in spatially distributed machines.

In addition, the EtherCAT bridge terminal can integrate subordinate PCs – eg, Beckhoff Embedded PCs from the CX series – as EtherCAT slaves in an EtherCAT network. In this case, the bridge terminal of the CX system is coupled with the higher-level EtherCAT system.

The EL6692 bridge terminals have a separate power supply for both EtherCAT networks in order to prevent an interruption of data communication due to power loss in one of the systems.

The EtherCAT Terminal system is a modular I/O system consisting of high-performance, electronic terminal blocks. The EtherCAT protocol is maintained into the individual terminal permitting ultra-fast communication speeds. High-performance EtherCAT Terminals are available for all common digital and analog signal types encountered in the world of automation. Fieldbus devices, eg, for PROFIBUS, PROFINET, CANopen, DeviceNet, Interbus or Lightbus are integrated via local fieldbus master/slave terminals. Any standard Ethernet device can be integrated locally via switch terminals.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Innovative separation of recyclable materials
Beckhoff Automation Fieldbus & Industrial Networking
A plant built by Belgian specialist machine builder, Absolem Engineering features an innovative process for separating recyclable materials. Using PC-based control from Beckhoff, a major problem has been elegantly solved - the generation of different signal sequences for the exact synchronisation of different camera systems.

Read more...
ABB updates distributed control system
ABB South Africa PLCs, DCSs & Controllers
Leveraging 30 years of continuous innovation and reliability, ABB’s updated Freelance 2024 distributed control system (DCS) offers greater plant adaptability, faster and more reliable device communication, improved system security, and seamless data exchange.

Read more...
Four ways modern operations control can boost sustainability and efficiency
PLCs, DCSs & Controllers
With the growing importance of digital transformation, HMIs and scada have evolved from control panels to vast operational hubs. Next-gen HMI/scada can bring together data, personalisation, and advanced insights to successfully achieve organisational goals, it is important to think about HMI/scada holistically within the operations ecosystem.

Read more...
Open control system for retrofit of conveyor control system
Beckhoff Automation Editor's Choice
For every online retailer, warehouse logistics is part of the critical infrastructure. An Australian office equipment supplier has retrofitted the warehouse logistics installation of its central warehouse, and replaced the proprietary decentralised controllers of the conveyor lines with PC-based control from Beckhoff, based on powerful EtherCAT communication.

Read more...
The convergence of intelligence: DCS, SCADA and TLC
Schneider Electric South Africa PLCs, DCSs & Controllers
In the early days of industrialisation, control systems were primarily mechanical, and relied on manual intervention and simple feedback loops to manage processes. Now, in the 21st century, industrial process automation systems are mind-blowingly intelligent, and provide almost unparalleled control and monitoring capabilities, making them integral to modern industrial systems.

Read more...
PC-based control for advanced hydrogen storage technology
Beckhoff Automation Editor's Choice PLCs, DCSs & Controllers
The proportion of renewable energies from solar, wind and water is rising continuously. However, sufficient storage options are of the essence to use these energies as efficiently as possible. GKN Hydrogen offers a particularly compact and safe option, low-pressure metal hydride hydrogen storage systems with PC-based control from Beckhoff.

Read more...
ABB modernises key board mill
ABB South Africa PLCs, DCSs & Controllers
ABB has secured a landmark contract to modernise Smurfit Kappa’s Paper Machine 5 at its corrugated cardboard mill near Mexico City. ABB will provide Smurfit Kappa with DCS, accompanied by a comprehensive paper machine drives system, encompassing some of the market’s most advanced drives and motors meticulously designed to optimise PM5’s performance.

Read more...
The synapses of the distributed control system
Schneider Electric South Africa PLCs, DCSs & Controllers
Industrial operations require a distributed control system (DCS) to coordinate and control their process subsystems in real time. Like the brain, a DCS is a multitasking maestro, controlling and coordinating complex processes in a myriad of industrial setting such as large manufacturing plants, providing valuable top-down control.

Read more...
Modular assembly platform for clean manufacturing
Beckhoff Automation PLCs, DCSs & Controllers
JR Automation delivers custom automated solutions for numerous industries. It has done this through its scalable, modular automation platform, FlexChassis, which speeds up time to market while cutting costs. The company chose the XTS linear transport system from Beckhoff because of its speed, and modular design that allows for multiple configurations.

Read more...
Automation of a thermoforming machine for recyclable packaging
Beckhoff Automation IT in Manufacturing
Renewable cellulose is an excellent alternative, which is why Hamer has joined forces with Beckhoff to develop a thermoforming machine for water-based cellulose pulp.

Read more...