Case Valmet

Valmet

Valmet is a leading supplier of services and technologies to the pulp, paper and energy industries.

Parameters, Diagnostics & Alarms Software for Digital Hydraulics Control System

Summary

Prosys provided Valmet a software application for managing digital hydraulics control system parameters and PLC program used in specific parts of calender machines. The software visualizes important alarm and numerical data for a maintenance user and helps to configure essential control parameters easily.

Taking Process and Parameters Under Control

Prosys provided a software application for managing digital hydraulics control system parameters and PLC program used in specific parts of calender machines. Valmet had two key objectives: firstly to visualize important alarm and numerical data for a maintenance user, and secondly to be able to configure essential control parameters easily.

To provide users a familiar user interface, standard web browser was chosen as a client platform. Also, since the software was implemented as a web application, information is easy to access inside the plant network from different devices and locations.

The development process used agile methods, especially sprint based approach, co-operation between parties and delivering early a version that could be reviewed by Valmet staff. Prosys added features along the way as the system was tested and the specification became more exact. In the end of the project the web application was able to generate a complete user interface with navigational structure and functionality from a single system configuration file. This enables easy and flexible system setup, modifications and maintenance.

Digital hydraulics control system runs on Beckhoff TwinCat 3 PLC platform, from which data can be accessed using Beckhoff ADS interface. For both data access and web server functions, software was developed with C# using ASP.NET Framework 4 technology. To make real-time updating of the browser user interface possible, AJAX components were used.

Prosys developed us a software application, which is easy to use and contains the necessary functions. They understood our requirements and the software application is flexible enough to adapt for different needs.”

Päivi Rintamäki
Technology Engineer, Valmet

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