The Introduction to PI Server System Management provides the basics on working with PI
can define for a point of that type. Essentially a point class is just a group of point attribute sets. Each attribute set consists of a group of individual attributes. Point class is assigned when the point is created. The default point class is Base point class. No two attribute sets within a point class can contain the same attribute. The Point Database has several different point classes, such as Base and Classic. The structure of the Classic point class is depicted in the following figure.