You are currently browsing the tag archive for the ‘PLC’ tag.

Traditionally, the worlds of PLC, motion control and control technology on one hand, with measurement technology and “lab applications” on the other, have diverged when it comes to data entry and processing in an industrial environment. Yet divergence always means having to use additional interfaces, which leads to restrictions on efficiency and operating convenience… (more)


Circuit-breaker manufacturers have been driven to implement dialogue interfaces for bus communication with control devices such as PLC, PC or SCADA due to the ever growing use of automation and supervision systems for industrial processes… (more)

Programmable logic controllers (PLCs) and supervisory control and data acquisition (SCADA) systems have been around for nearly 50 years, and they are arguably two of the most widely used products in industrial automation.
The functionalities of both PLCs and SCADA have evolved over the years with the changing needs of industry and technological advancements… (more)

There has recently been debate at several of the SA Bureau of Standards (SABS) technical committees concerned with standards in the communications and power distribution fields… (more)

From the shop floor up, there seems to be a level in companies where engineering principles and logic stop and an undefined “something” takes over and remains with the company all the way to the boardroom. The result is that one set of rules applies to creating wealth while another applies to managing it… (more)

The Two-a-Day Group, one of the leading fruit growing, packing and marketing companies on the African continent, comprising of more than 50 farms owned by the principle shareholders, has met the challenge of controlling and monitoring its cold storage and packaging plants, with the assistance of solutions from specialist in energy management, Schneider Electric South Africa… (more)

When it comes to SCADA and PLC systems it is interesting to note the extensive applications in industry. During my recent discussion with Keith Gross of Ana-Digi Systems, I learned about the use of PLC and SCADA on two South African fishing trawlers… (more)

Industrial Ethernet has rapidly become the reliable technology infrastructure for automation communication within production plants, utility substations and intelligent transportation system environments… (more)

With a number of vendors producing programmable automation controllers that combine the functionality of a PC and reliability of a PLC, PACs are increasingly being incorporated into control systems… (more)

Industrial plants are increasingly becoming automated, leading to shortages of staff skilled in the management of automation and associated control software. With these systems becoming more complicated, the control software is constantly being blamed for plants tripping and outages… (more)

Power utility companies need to accurately measure the power produced and used by their power stations on a 24/7 basis. The energy metering and data acquisition system (Emdas) has been a standard for Eskom over the past 15 years, and was recently redeveloped using the latest technology available… (more)

Small, fast and cheap PLC solutions usually offer few engineering options and often do not provide convenient visualisation. In contrast, distributed control systems integrate a host of components such as controls, engineering tools, human machine interfaces and numerous peripheral devices and tools (more)

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