Degrémont, part of the SUEZ group, is an international water treatment plant specialist. Making water drinkable, no matter what the initial quality of the resource (such as groundwater, borehole water, brackish water or seawater), is Degrémont's specialty. Their focus ranges from ozonation and filtration with activated carbon, to the removal of mineral and organic micro contaminants.
Degrémont has decided to use ControlBuild IEC 61131-3 based software suite to optimize the development, maintenance and operation cost of filtering installations. Filtration is carried out in several filters running parallel to each other, constituting a battery of filters (see figure. 1).
Project Description
ControlBuild is used to develop the complete filtering application by assembling standard modules of filters. These modules are intended to be instantiated on different PLCs (Schneider, Siemens, Rockwell…) all optimized to utilize the standard programming language of IEC 61131-3. The structure and breakdown of the application has been specially designed to enable centralized or decentralized PLC architecture. It also simplifies supervision tools and operator interface configuration.
Development process
Main benefits of ControlBuild as a PLC independent Software based on IEC 61131-3
- Allows the application to be independent from the PLC manufacturer.
- Allows the application development to be re-usable over multiple projects.
- Utilizes a full variation of graphical languages (ladder, FBD, SFC) to reduce maintenance and training cost.
- Utilizes a component based approach to reduce programming errors.
- Is able to support a wide range of customer specific PLC's requests without the extra cost of redesign.
- Improves quality by using highly structured software that has been comprehensively validated and improved over multiple projects.