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Controllers in an era of high availability

The emergence of new high availability technologies is making it more economical to implement a redundancy strategy for PLC, PAC and edge controllers. Darrell Halterman explains.
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Control through the ages

Eamonn Garry discusses how controllers have developed, since the introduction of the first PLC, and looks into their future role in modern and future automation systems.
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New developments in secure networking

Simatic S7-1500 Advanced Controllers are optimally equipped for the digital transformation. With optimised firmware, they are. setting new standards for functionality, convenience, availability, and security – especially as part of a larger network. 


  1. 17/08/2021 The IPC requirements of complex control

    As automation technologies and the Industrial Internet of Things (IIoT) become more commonplace in modern manufacturing, the requirements of control hardware have increased. However, according to Stephen Hayes, managing director Beckhoff UK, the importance of this is often overshadowed by the focus on new sophisticated software.

  2. 13/07/2021 Structuring with IEC 61131-3: Seven steps to success

    The IEC 61131-3 standard includes powerful structuring tools and can help provide users an excellent way to break a control system down into manageable units for greater overall effectiveness.

  3. 04/07/2021 PLC upgrade increases uptime, speed and line responsiveness

    An automation solutions provider, Control Freaks, applied innovative PLC technology to solve production challenges and increase competitiveness at a pizza production facility. 

  4. 07/06/2021 Long live the PLC!

    David Humphrey offers some thoughts on the changing role for a machine control stalwart – the Programmable Logic Controller (PLC) – as the industrial technology space continues to evolve at a rapid pace.

  5. 09/03/2021 DCS moves with the times

    Control Engineering Europe reports on changing DCS technology which is being adapted to meet the need for more agile production.

  6. 01/03/2021 Reduce waste, boost profits

    Lee Sullivan explains how process automation can be used to reduce dairy process inefficiencies, while boosting profits.

  7. 16/02/2021 Future-proofing your process control systems

    Joe Bastone explains how control engineers can ensure that their process control assets are future-proofed and have the flexibility needed to meet ever faster changing customer demands.

  8. 01/02/2021 PC-based control drives AGV advances

    A comprehensive PC-based control solution has enabled a Chinese technology company to develop better-performing products more efficiently and is also helping these products to meet the requirements of Industry 4.0 and the Made in China 2025 initiative.

  9. 19/01/2021 DCS solution: from skids to plantwide control

    Suzanne Gill finds out more about a distributed control system (DCS) solution that is well suited to use more widely throughout a manufacturing plant, than traditional iterations of the technology.

  10. 14/12/2020 Migrating legacy PLC programs to modern PLC hardware

    Zero downtime is a requirement for many water/wastewater processes, often necessitating upgrading legacy automation by migrating existing code.

  11. 23/11/2020 More control for OT and IT

    Where is the border between automation and IT? The progress of artificial intelligence (AI), cloud technologies and simulation means that it is no longer so easy to draw a sharp line between operational technology (OT) and IT, says Andrea Rauscher, Product manager SIMATIC Siemens AG and Andreas Czech, marketing manager SIMATIC Siemens AG.

  12. 10/11/2020 Making process control more flexible

    For decades large-scale automation systems have been at the heart of production line control. Today, driven by changes in consumer demands, an alternative plug and produce modular automation approach is emerging, says Ralf Jeske.

  13. 22/09/2020 The rise of the PAC

    David Humphrey explains the difference today between a PLC and PAC and offers advice on which would best suit different applications within the manufacturing environment.

  14. 08/09/2020 Adding machine controllers to the factory floor

    Martin Gadsby explains how factory automation projects can leverage the most suitable machine control solutions.

  15. 06/07/2020 Is it time to look at edge computing?

    Stephen Hayes explains why now is the right time to look deeper into industrial edge computing.  

  16. 23/03/2020 Is your legacy PLC failing you on food hygiene?

    Edward Ralph looks at how PLCs can help address hygiene and food safety issues.

  17. 09/12/2019 Engineering on a global scale!

    Today’s engineering projects are executed by a variety of stakeholders. But, can the process control system provide a reliable basis for effective and efficient collaboration? Manuel Keldenich believes they can.

  18. 05/08/2019 What is rate-predictive control?

    A new non-PID control algorithm, rate-predictive control (RPC), is adaptive to changes in process gain. This is helpful, says Allan Kern, given the difficult history of loop tuning, auto-tuning, and model maintenance.

  19. 03/06/2019 PLC addresses malting process reliability issues

    A new control system has offered malting company, Crisp, with some impressive process improvements.

  20. 21/05/2019 Gaining an edge in automation

    Edge computing advances give users more options for architecting automation systems, flexible communications and programming choices, says Benson Hougland.