System Integration & Control Systems Design


Latest Articles

Tricky pressure control in a distillation column
July 2003, Michael Brown Control Engineering
Pressure has a major effect on the separation and cut in a distillation column, and column stability can be dramatically hampered if there is poor pressure control. One of the most common ways of controlling ...

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Virtual instrument pioneer aids control system design
June 2003
LabVIEW 7 has made it easier and more cost effective to build distributed systems with the introduction of Express VIs, additions to the LabVIEW DSC and realtime modules, and more visually intuitive block diagrams

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The amazing problem-free plant
June 2003, Michael Brown Control Engineering
Just before starting on this piece, I read a fascinating article by a valve manufacturer in the April issue of SA Instrumentation & Control, which mentioned a case where a relatively small 1,4% improvement ...

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Consistency management concept in papermaking
May 2003
Improved consistency control can save a lot in raw material cost, as well as greater machine efficiency

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Who is afraid of control in the field? Conclusion - where control in the field makes sense
May 2003, Endress+Hauser South Africa
From the technical point of view, there is no longer a need for a centralised control room

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Good facilities management enables effective action in a crisis
May 2003
Enterprise Buildings Integrator (EBI) is a platform that integrates all core building systems and subsystems, including security, digital video surveillance, access control, life safety, heating, ventilation and airconditioning

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System integrators required for new vision system
May 2003, Turck Banner Southern Africa
RET Automation Controls is looking for system integrators countrywide with experience in vision systems, to be appointed as official distributors of Banner's new full-function vision sensors. Released ...

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Substation monitoring made easy
May 2003
Spectrum Communications recently completed a turnkey monitoring project for one of the large electricity users in the Western Cape comprising of nine substations (11 KV) and scada central station. The ...

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Ethernet and Profibus in a potassium mine
May 2003
It is believed that the potassium deposits in Germany were formed more than 200 million years ago. Today, these deposits, lying deep under the surface, provide an important natural product: mineral salt. ...

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Keops Altech walks away with the laurels at Wonderware X-Change 2003 Conference
May 2003
April 2003 - Keops Altech, a member of the multibillion rand JSE Securities Exchange-listed Altech group of companies, was appointed as Top Wonderware Systems Integrator - and also won the award for the ...

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IP connectivity offers flexible and efficient data access
May 2003
Trinity Telecomms is offering Wavecom's IP wireless solution for connectivity to the Internet. This allows efficient solutions for data retrieval, update and monitoring. Data transfer can be performed ...

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Rationality in machine automation
April 2003
Gefran offers the machine manufacturer and OEM a complete range - MMI, intelligent control via modular PLCs, intelligent switching devices in the panel and a line-up of sensors, which include load cells, pressure transmitters, potentiometric devices and temperature sensing all working as one high-performance system

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Flow loops behaving badly: case history 70
April 2003, Michael Brown Control Engineering
I have lost count of the number of times I have been told that flow loops are very simple things, that they are easy to tune, that you do not need a tuning package to tune them, that they can be tuned ...

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Maximising grinding mill efficiency with neural networks - Part II
March 2003
The flexibility of SmartGrind's smart modules allows the user to customise the application to address their individual needs of the mill

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Profibus fibre-optic transceiver
March 2003
The ERbic Profibus fibre-optic transceiver converts the electrical signals of the Profibus interface into optical signals. Data transmission is effected bi-directionally, with data transparency in half-duplex ...

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Filters - the great deceivers
March 2003, Michael Brown Control Engineering
Noise on the PV signal was discussed in the previous loop signature article, and it was mentioned that it is generally better to live with the noise rather than filtering it out; provided it does not ...

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Maximising grinding mill efficiency with neural networks - Part 1
February 2003
Optimisation of the grind size, via the throughput/recovery relationship and the control of the grind size, is a vital part of mineral processing operation

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The impact on installation on network performance
February 2003, Rockwell Automation
Industry studies show that installation and media related problems account for 70-90% of the downtime occurrences in operating networks

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Speeding up system implementation at Western Platinum Refinery
February 2003
ProDef, an application that provides a common development environment for the design, configuring, programming and documentation of control systems, has helped system integrator DW Controls to implement ...

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Some unusual integrating processes
February 2003, Michael Brown Control Engineering
As mentioned in previous articles, all industrial processes fall into one of two classes of dynamics, known as self-regulating and integrating. In particular refer to Loop Signature No. 2 for a full description ...

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