More than 1000 eWON routers were installed up to date across a similar number of 'high priority' sites in the UK, in conjunction with a PLC/RTU device, to monitor and control site processes. The role of the eWON device is to provide secure, resilient, remote-access through the Internet, to the PLC/RTU devices on site, using a combination of both Broadband ADSL and GPRS/3G.
Jim Grandison, Workstream Lead for the SCADA Delivery Program at Thames Water comments: “As a business, we want to change the way we monitor and control our remote assets. This means moving from our existing IT communications infrastructure based on traditional technologies – a mixture of dial-up leased lines, ISDN, packet-switching, Telex and other legacy communications equipment – to what we call a near-real time approach. This project is part of our £4.9bn investment programme between 2010 and 2015 to improve our water and sewage networks”
Thames Water operates and maintains 100 water treatment works, 30 raw water reservoirs, 288 pumping stations and 235 clean water service reservoirs. On the sewerage side of the business, Thames Water operates and maintains 350 sewage treatment works and 2,530 pumping stations.
The ‘eWON’ range of VPN routers has been specifically designed for industrial use, in order that it can intelligently interface with a wide range of automation and control devices, including all major PLCs brands, instruments, data-loggers, Modbus controllers, as well as 4 legacy serial devices.
Company MAC Solutions, eWON distributor in the UK, is supervising this project since its start in 2010.