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What to do when fragmented systems get too complex
November 2021, Absolute Perspectives
With proper planning, a strategic approach, careful vendor selection and a systematic project methodology, you can successfully upgrade to a future-proof ICT infrastructure that supports ongoing digital transformation.

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Case History 180: Fuel gas pressure control problem
November 2021, Michael Brown Control Engineering
The problem with the pressure control was that it seemed to work intermittently and seldom got to setpoint, resulting in large and unacceptable variance on the control.

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Cybersecurity for operational technology: Part 4: Practical recommendations to reduce cybersecurity risks for OT systems
November 2021, Wolfpack Information Risk
It is essential that IT professionals are able to clearly articulate cybersecurity risks to management.

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Loop Signatures 9: Digital controllers – Part 1: Introduction to the simple PID controller
October 2021, Michael Brown Control Engineering
There is a commonly held belief in control circles that all PID controllers are similar and relatively simple. This is a dangerous fallacy.

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Totally Integrated Automation – added value in three dimensions
October 2021, Siemens Digital Industries, System Integration & Control Systems Design
Discover everything that’s in TIA, the leading automation concept from Siemens, and how it all works together to create a unique product for machine builders and industrial enterprises.

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Cybersecurity for operational technology: Part 3: Third-party supplier risks to OT Systems
October 2021, Wolfpack Information Risk
As supply chains have become integrated, interconnected and increasingly complex, supply chain cyber-attacks are on the increase as they are very effective.

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Case History 179: Some unusual measurement and control problems
September 2021, Michael Brown Control Engineering
The example given in this article illustrates some mistakes made by the system integrators and control engineers at a metals extraction plant that used a well-known make of PLC and scada for its controls.

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Tag-specific requirements in RFID systems for track and trace
September 2021, Turck Banner, Industrial Wireless
The BL ident complete RFID system from Turck Banner offers solutions in the HF or UHF range with interfaces for use in a plant or switch cabinet.

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Security for operational technology: Part 2: How much of a cyber threat are people to OT systems and what can be done?
September 2021
The recent cyber-attack on Transnet is a wake-up call that South African companies are not immune from cyber threats.

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Loop Signatures 8: Final control elements – Part 4: the infamous stick-slip cycle
August 2021, Michael Brown Control Engineering
An inherent phenomenon occurring in most control valves that few people are aware of is ‘stick-slip’.

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OT the executor, IT the overseer, IIoT the enabler
August 2021
It is a fascinating and daunting time to be working as professionals in the OT and IT worlds.

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Of gorillas and swarms – the manufacturing CIO’s new dilemma
July 2021, Absolute Perspectives
Back in the heyday of integrated business systems, the manufacturing CIO was faced with a relatively simple choice: which big ERP vendor to select and what database technology to run the system on?

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Case History 178: An over-filtered hydrogen flow loop
July 2021, Michael Brown Control Engineering
A good example that shows how lack of knowledge of the practicalities of control can result in terrible control characteristics.

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Loop Signatures 1: Introduction to the Loop Problem Signatures series
May 2020, Michael Brown Control Engineering
Over the years I have had many requests to write a book giving more detailed explanations of some of the problems I have encountered in my work on practical loop optimisation. I am by nature and inclination ...

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Loop Signatures 7: Final control elements – Part 3 hysteresis and deadband
June 2021, Michael Brown Control Engineering
Some of the biggest problems associated with the final control element are hysteresis and backlash.

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MES, OT and the IIoT – what’s required for digitalisation?
May 2021
Hand over the data decisions to the OT guys? Calm down IT professionals, there is a time and a place for everything.

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Case History 177 - Valves, valves, valves!
May 2021, Michael Brown Control Engineering
75-85% of all industrial control loop problems are caused by valve issues.

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New devices from Endress+Hauser connect pressure measurement to the future
May 2021, Endress+Hauser South Africa
By implementing a Bluetooth interface, devices that were previously difficult to access, or in danger zones, can now be operated easily and safely.

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Loop Signatures 6: Final control elements – Part 2: characteristics.
April 2021, Michael Brown Control Engineering
Feedback theory generally assumes that the process has a linear transfer function, which means that equal changes on the input will result in equal changes on the output.

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Tailored technology meets responsive design with the new Festo website
April 2021, Festo South Africa
Festo South Africa recently launched its new website to demonstrate the company’s continuing commitment to simplifying its customer’s lives through innovative service delivery.

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