Advantech WebAccess/SCADA is SCADA software platform that can collect various types of equipment data and perform remote management and maintenance, and it also provides an open interface and rich development tools. The software allows manufacturers to transform their factories to the intelligent factories to facilitate data acquisition from low-level equipment. It also allows system integrators to easily develop management systems. With WebAccess/SCADA installed on the server host in order to connect the OMRON controllers, the system can import data into an SQL Server database. Such a configuration allowed employees in different departments of the wafer probing factory (e.g., R&D, production, and facility management) query relevant records or access data from their own computer.
Using WebAccess/SCADA to collect OMRON controller data is easy because the software provides more than 200 drivers and supports more than 450 types of controllers, I/O modules, and PLCs. ODBC support also enables the importing and exporting of collected device data with a standard database (e.g., SQL Server, Oracle, MySQL, Microsoft Access).
Based on WebAccess/SCADA's 100% Web-based cross-platform architecture, system designers can build, modify, and maintain projects over the Internet using a standard browser. Regardless of whether it is on a desktop PC or handheld device, the same methods can be used to acquire data from the management system or access related reports. The authorization mechanism enables the setting of data access permissions, thus ensuring the protection of company information. The wafer probing factory utilized this feature to configure the system’s user permissions, which was determined on the basis of job rank. Thus, when employees with different grades want to access warning records, the system will display only the information that is in line with their access permissions.
In addition to SCADA functions, WebAccess/SCADA offers many useful development tools. In this project, the Dashboard’s built-in ready-made library and support for the TclScript programming language, which has a simple syntax, were the ideal tools for the visualizing information and generating reports while expediting system development. According to their needs, developers can directly select static or dynamic graphics from the dashboard system, and then design a vivid GUI through a simple configuration process. Meanwhile, the system also provides Widget Builder, a tool for developers to customize their own GUI. The easy-to-use TclScript programming tool is particularly convenient for extracting data and generating reports.