After testing dozens over the past four years, these are our favorite wireless earbuds, in a wide range of styles and prices.įor more top picks, check out our other audio guides, like the Best Wireless Headphones, Best Noise-Canceling Headphones, Best Cheap Headphones, Best Workout Earbuds, and Best Wired Headphones. There are tons of new models that sound fabulous and work perfectly. The first wireless buds were gigantic, died after a few hours, and had a bunch of other problems.
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As part of this huge programme it is upgrading the controls at a series of pumping stations to Rockwell Automation’s Allen-Bradley CompactLogix controllers 01 Nov Thames Water is investing millions of pounds to renew the water supply infrastructure around London.Wireless earbuds are one of those ideas that sounded like a dream at first: Pop a little headphone into each ear and listen to music or take calls untethered from everything. Region, it is investing £1 million a day in its UK infrastructure.Ī key element of this renewal is the replacement of obsolete control systems at a London water ring main Guarantee safe, reliable water supplies for its seven million customers in London and the Thames Valley Thames Water and its predecessors have been providing water to Londoners for over 400 years, and now part of the multi-national RWE utilities group Thames, is today the largest water company in the UK. Shaft pumping station that supplies water to the network of mains running below the streets of South London. One of Thames Water’s approved systems integrators, Innecto Projects Ltd of Farnham in Surrey, secured the contract to replace controls at the Streatham Shaft pumping station with a new system based on Allen-īradley CompactLogix controllers. The Streatham station has two 395kW pumps, two 465kW pumps and one 680kW pump linked via a series of six electrically operated valves to the water main and the nearby Norwood reservoir.įollowing the successful completion of this installation, similar systemsĪre to be installed at the shafts at Brixton and Battersea. By running the appropriate number of pumps the station maintains pressure in the main in response to varying demand and diverts surplus water to storage at times of low consumption. The station pumps and valves are remotely monitored and controlled around the clock from a remoteĬontrol centre using an existing SCADA system running on a rackbased CPU linked to the programmable controllers by interface modules. Local control of each pump is also provided by pushbuttons on the front of the control panels. The existing controllers and I/O racks were 15 years old and support and spares were getting more difficult to obtain, so the decision was taken to replace the control hardware with state-of-the-art Allen-Bradley equipment.
“After reviewing the available options, Thames Water selected Rockwell Automation as one of its preferred controls suppliers, because it is able to provide a complete range of proven, reliable and well supported hardware,” says Trevor Stewart, a director of Innecto. The five new controllers and associated Allen-Bradley 1769 I/O modules were easily installed in the existing control panels with only minor changes to the wiring. A feature of CompactLogix that makes it well suited to control system upgrades is its compact, chassisless design. This means modules are only added as needed and the panel space required is kept to a minimum.
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Innecto completely rewrote the existing programming code for the new controllers using Rockwell Software’s RSLogix 5000 editor.ĭespite its small size, the powerful processor is able to handle complex control tasks, making it ideal for small to medium-size standaloneĪpplications requiring up to 1024 I/O or part of a network of programmable controllers.ĪCompactLogix controller and five 1769 I/O modules provide all the processing power needed to control each pump set at the Streatham pumping station, while occupying a fraction of the space taken by the legacy controllers they replaced. To simplify maintenance and reconfiguration, the code was split into Sections, with separate routines for alarms and the SCADA interface. This removes any maximum limit on the number of addresses available and enables the When programming with RSLogix 5000, all tag names can be user-defined, rather than pre-determinedīy the hardware. System developer to produce programs and addresses with logical names that will be easily understood by another engineer. The CompactLogix tag database also allows the use of aliases to simplify the definition of tag names for I/O locations.
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