New national regulations, introduced to clean up pollution and to reduce the visual impact of industrial plants on the landscape, required a coal fired power plant in the USA to upgrade to enable conformance. The following needed to be added:
* Catalytic reduction system to lower nitrous oxide emissions.
* Dry scrubber for capturing sulphur dioxide.
* A baghouse (enclosed coal delivery bunker) to accept deliveries of coal and eliminate particulate emissions when coal is tipped out of the wagons.
Adding oxygen and carbon monoxide measurements into the control system would reduce pollution and the improved combustion efficiency would reduce fuel consumption and lower operating costs. New gas analysers were therefore required to integrate with the Allen Bradley PLC used to control the boiler. Acromag, a supplier of signal conditioners and isolators, was approached to supply a device to read the signals from the analysers and connect them to the PLC.
Acromag supplied two modules (961EN-6006 for analog signals, 983EN-6012 for digital signals) with an Ethernet IP protocol interface for direct connection with the PLC. Using these remote I/O modules, the site engineers were easily able to integrate the gas analyser readings and alarms into the control system. As part of the process, Acromag remote I/O modules were also used to connect the new weather station readings for data-logging and control purposes.
Suppression and safety solutions for fire and gas in mission-critical industries
Fieldbus & Industrial Networking
By representing world-leading brands and focusing on fully integrated, certified systems, HMA South Africa is positioning itself as a trusted partner in fire detection, suppression and explosion-proof safety solutions across the continent.
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Fire alarm systems work independently of the building automation system. Schrack Seconet has developed a flexible gateway using ultra-compact industrial PCs and TwinCAT from Beckhoff, which can be used to flexibly convert a customer-specific communication protocol to a wide range of transmission standards.
Read more...Fire and gas suppression solutions for mission-critical industries
Fieldbus & Industrial Networking
By representing world-leading brands and focusing on fully integrated, certified systems, HMA South Africa is positioning itself as a trusted partner in fire detection, suppression and explosion-proof safety solutions across the continent.
Read more...The future of manufacturing
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Industrial automation is evolving at an unprecedented pace. At the forefront of this transformation is the Siemens SIMATIC ET 200SP HA Distributed I/O system. This is a flexible and scalable distributed I/O system for modern signal transfer from the field to the control level.
Read more...Time-sensitive networking RJ Connect
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In this article, we will explore what is driving the rise of time-sensitive networking, how it is reshaping industrial efficiency, the challenges when deploying this technology, and ways to tackle these challenges.
Read more...Loop Signature 30: Nonlinearity in control loops (Part 1) Michael Brown Control Engineering
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If nonlinearity occurs it means that if one is to carry on controlling with the same response to changes in load or setpoint, then the tuning of the controller will also need to be adjusted to meet the new conditions.
Read more...PC-based control regulates innovative dehumidifiers Beckhoff Automation
Fieldbus & Industrial Networking
Swedish company, Airwatergreen is breaking new ground in the dehumidification of air in industrial buildings and warehouses. The patented CVP technology reduces energy requirements and ensures an indoor climate that prevents corrosion and mould growth. PC-based control from Beckhoff regulates this innovative process.
Read more...Ethernet connectivity for embedded systems
Fieldbus & Industrial Networking
Delivering Ethernet connectivity for embedded systems, XPort ETH Click is a compact add-on board from MIKROE, the embedded solutions company that dramatically cuts development time by providing innovative hardware and software products based on proven standards.
Read more...Compact mini PC Vepac Electronics
Fieldbus & Industrial Networking
AS AAEON’s first Intel Core-powered PICO-SEMI system capable of fanless operation, the PICO-MTU4-SEMI from Vepac Electronics is easily deployed as part of larger equipment setups or integrated as the central unit of smart robotics solutions such as AGVs, AMRs and drones requiring minimal maintenance.
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