4.1 Tag Database Management

The database is a core of the UltimateAccess Web system. The database connects the superordinate concepts such as process and the control devices. Connections are established between the process and the control devices so that the system can enhance its efficiency and rationality. Every feature provided by UltimateAccess Web is based on the tags defined in the database.

The real tag reads or writes it value to or from the external devices. When the value of the real tag changes, it is immediately written to the UltimateAccess Web. The virtual tag is used internally within the UltimateAccess Web. It is used to create the process simulation. You can assign the specific type to each tag: Group tag, Digital tag, Analog tag and String tag. These tags can be defined and edited by using easy interfaces. Since the Excel program allows the users to export and import the database, you can manage and print data from the database at ease.