Trend Module Limitations - Metasys - LIT-12011942 - Software Application - ODS Server - 10.1

Metasys Open Data Server Help

Brand
Metasys
Product name
ODS Server
Document type
User Guide
Document number
LIT-12011942
Version
10.1
Revision date
2019-10-14
Language
English

The limitations of the Trend Module are as follows:

  • A maximum of 500 data points can be displayed for a single trended object. No data older than 2 years can be displayed.
  • The trend data originates from the device’s online buffer; samples stored in a historical database such as the JCIHistorianDB archive database are not included.
  • You can open only one Trend Module per graphic.
  • The Trend Module can chart a maximum of four trended Metasys objects. If you try to plot a fifth object, a user message box appears.
    Figure 1. User Message Example: Full Trend Module

  • The Trend Module does not support nested trend extensions. For example, the Trend Module cannot chart totalization extensions that contain a trend extension.
  • You cannot save the Trend settings for later use. Once you close the graphic, you need to select the objects for the trend module again.