Utah Valley Water Treatment Plant

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Utah Valley Water Treatment Plant Expansion

    Central Utah Water Conservancy District was expanding their Utah Valley Water Treatment Plant. The project included replacing all the PLC's and installing a new HMI system. My task was to come into the middle of the project, after a co-worker went to another employer, and complete the project. The system included redundant SCADA servers using Intellution iFIX with six touch- screen view nodes and two other view node stations. Remote stations were connected by 10Base fiber optic connections. These computers originally had the Windows NT operating system that I later upgraded to Windows 2000 because of project specifications. Communications to all PLC's and PC's were Ethernet. Communications to the eight different valve networks used a Modicon Bridge Mux.
    Trying to integrate completed screens, partially completed screens and screens not yet created so that the look and feel of the system was consistent was challenging. I didn't want to go back and redo work already completed, that would not be cost effective. I have included one of the partial screens.
    Another task was to create simple reporting. A trending screen. One of the nice features included on this screen can't be seen. If you double click the trend itself you can go and create trend groups and save them to be called back later.
    On the Filter screen is a little tiny trend buttons that if clicked will pull up a saved trend group. Pages F9 & F10 show a sample report created in Excel. Again it's not what you see but what you don't see. I installed a product called XLReporter After I configured and created VBA code the operator could press the Run button on the introduction page of the report and it retrieves all the data for the date requested and fills in the Excel spreadsheet.
    Some more screen shots: Network Overview, Plant Overview, Alarming, Analog Alarming Setup & Discrete Alarming Setup. Photo of PLC-1 and the Operator Interface Terminal (OIT).


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