October 2003PLCs, DCSs & Controllers
Entertainment and Hospitality (Industry)
The CDM9 conductivity indicator controller from Temperature Controls is available as either a panel or surface-mounting version in an IP66 enclosure with a 3,5 digit liquid crystal display.
The CDM9, well-suited for use in small water treatment systems, provides a single pole changeover relay to operate a solenoid valve, dosing pump or visual or audible alarm. The relay can be set to energise on either a rising or falling conductivity reading enabling the CDM9 to be used for a variety of water treatment applications. An LED on the front panel indicates the state of the relay.
The competitively priced CDM9 also features a new style of digital setpoint adjustment using the front panel membrane switch and includes the option of a manual temperature compensation facility.
For more information contact Andy Brown, Temperature Controls, 011 791 6000.
Network-capable remote relay system with flexible channel assignment Phoenix Contact
PLCs, DCSs & Controllers
Phoenix Contact has launched a modular PLC-Interface Ethernet Gateway remote relay system with up to 56 configurable I/O channels, multi-protocol support including Profinet Class C and S2 redundancy, and compatibility with established controller software for straightforward network integration.
Read more...Seven checks before replacing an obsolete industrial control component
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An obsolete control component rarely fails in isolation. Before ordering an exact spare, manufacturer successor or engineered alternative, maintenance and procurement teams should work through seven checks to define the problem properly and avoid a costly mismatch.
Read more...A new type of perimeter for galleries and museums
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The next generation of museum security needs to detect threats sooner without getting between visitors and the works they came to see. The strongest perimeter may be the one nobody notices.
Read more...Loop signature Part 2-6
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This instalment of the Loop Signature series introduces frequency plot theory as a foundation for understanding process dynamics, explaining Bode plots, dynamic gain, phase lag and their relationship to control loop tuning.
Read more...The rise of software-defined brownfield automation Schneider Electric South Africa
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Schneider Electric’s EcoStruxure Automation Expert is enabling brownfield operators to modernise incrementally, decoupling control logic from hardware to bridge legacy equipment and future-ready operations without disrupting production.
Read more...Upgrading alarm systems for critical industries Omniflex Remote Monitoring Specialists
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Omniflex’s OMNI16R alarm annunciator platform provides a direct replacement for legacy CSA systems such as MPAS 90 and SA9100, enabling operators in oil and gas, nuclear and power generation to modernise alarm infrastructure without sacrificing the clarity required for safe operations.
Read more...How DCS can step off the hardware obsolescence treadmill Schneider Electric South Africa
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Schneider Electric argues that virtualising DCS environments breaks the cycle of hardware obsolescence, giving plant operators a smarter path to lifecycle modernisation without production disruption.
Read more...Loop signature Part 2-6
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The Loop Signature series turns to frequency plot theory, explaining Bode open-loop plots and how dynamic gain, phase lag and crossover frequency can be extracted from test data to inform more accurate control loop tuning.
Read more...PC-based control in surgery Beckhoff Automation
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Researchers at the University of Basel are using Beckhoff PC-based control technology to develop a miniature laser robot for minimally invasive bone surgery.
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