A PI tag has pre-defined tag attributes that are specified by the tag’s point class. The base attributes are shared by all tags. These are attributes such as zero and span. At you can see where this video is in the sequence of videos on this topic. If you are a subscriber to our Virtual Learning Lab Environment at you can log in to your own personal PI System to use for practice and testing. Video content is copyright of OSIsoft, LLC – 2011. All rights reserved. Any redistribution or reproduction of part or all of the contents in any form is prohibited other than for your personal and non-commercial use.