Work with trend files

This section describes how to create, open, and save trend files. A trend file contains all of the configuration data required to trend one or more tags, such as the tags, time axes, colors, zoom level, and so on.

Any mix of analog, discrete, event, or summary tags is allowed. However, the mix of summary tags with other tags is dependant on the retrieval mode. For example, if the summary tags are supported by Cyclic retrieval mode and that retrieval mode is set, then we can mix the summary tags with the other tags for trending.

There is no pre-set limit to the number of tags that you can have in a trend; however, keep in mind performance limitations for data retrieval for your computer system.