Product category:
Data acquisition Software and Communications
News Release from: Radio Data Technology | Subject: PB1000 interface module
Edited by the Engineeringtalk Editorial
Team on 11 July 2003
Low-power radio module is Profibus slave
Profibus presents some special requirements that cannot be met by a conventional narrowband radio modem without severely compromising the performance of the Profibus network as a whole.
United Utilities, a water supplier in the North West of England, has adopted Profibus for the control systems on its waste water treatment works.The company has three waste water pumping stations feeding a treatment works at Soutergate in Cumbria The distance between the pumping stations and the treatment works is up to 1 mile, and it is essential that data are exchanged between the pumping stations and the treatment works for efficient operation and the avoidance of floods
This article was originally published on Engineeringtalk on 17 Oct 2000 at 8.00am (UK)
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The installation of cable would have been prohibitively expensive and time consuming.
Also, the running costs associated with the use of public networks ruled out this option.
For these reasons United Utilities opted to use a dedicated radio system operating in the licence-free low-power telemetry band.
However, Profibus presents some special requirements that cannot be met by a conventional narrowband radio modem without severely compromising the performance of the Profibus network as a whole.
For this reason RDT's PB1000 interface module was selected.
The module uses a new approach whereby the modem/interface module is itself a Profibus slave rather than simply a communication device.
This means that the Profibus networks can operate at full speed without restriction and also that diagnostic information is available and fail-safe features can be applied - essential in such an environmentally sensitive application.
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