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Concept

Concept


Products: Automation Server, AS-B, Enterprise Server, AS-P, Virtual Project Servers
Functionalities: Trends
Product version: 1.9
12/14/2016

Multi Trend Log Lists

arrow1_rotationTime Zone Modes in a Trend Log List arrow1_rotationCalculation Methods arrow1_rotationFloating Point Values NaN, INF, and -INF

You configure a multi trend log list to display values from multiple trend logs in one list. You compare values in a multi trend log list when you commission or validate a Building Operation system.

For example, on a b3 BACnet device, there are two inputs: SpaceTemp and SpaceHumidity. Both inputs have logs set up intrinsically. You want to print the last 3 days of history for these inputs. You create a multi trend log list for both inputs. You can export the multi trend log list to a .CSV file or an .XML and then use an external editor to compare the values.

If a trend log has no available value for a given time stamp in a multi trend log list, then the trend log displays an empty cell for that specific time. You can fill that empty cell with the latest known value.

You can change the column order in the multi trend log list and save the change.

You can add, edit, or remove trend logs from the multi trend log list at any time. You can also edit how trend logs are displayed in the multi trend log list. For more information, see Configuring a Trend Log Series in a Multi Trend Log List  .

Tip:

You can add a trend log to a multi trend log list using drag and drop.

You can configure the individual trend log series in a multi trend log list.

Important:

All configurations on individual trend log series are overriden if you configure the multi trend log list.

Temporary multi trend log list

You can view a group of trend log lists in a atemporary multi trend log list without creating a multi trend log list. For more information, see Viewing Trend Logs in a Temporary Multi Trend Log List  .

Time Zone Modes in a Trend Log List

​In a trend log list, you can present the records of a trend log in different time zones: local time zone, SmartStruxure server time zone, and UTC time zone.

For more information, see Time Zone Modes in a Trend Log List .

Calculation Methods

​Use a calculation method to process the records of the trend log before presenting them in a trend log list or a trend chart. The original records in the trend log are not affected by the calculation method. The calculation method is applied to the trend log records grouped by a specific time interval.

For more information, see Calculation Methods .

Important:

If you have selected a calculation method on a series, event icons are not displayed on that series in the multi trend log list.

Floating Point Values NaN, INF, and -INF

In Building Operation, the floating point values “Not a Number”, positive infinity, or negative infinity may be displayed in the Basic property tab, in a trend log list, or a trend chart.

For more information, see Floating Point Values NaN, INF, and –INF .

See Also

  • Trends Overview
  • Trend Series
  • Time Zone Modes in a Trend Log List
  • Calculation Methods
  • Floating Point Values NaN, INF, and –INF
  • Creating a Multi Trend Log List 
  • Configuring a Multi Trend Log List 
  • Adding a Trend Log to a Multi Trend Log List 
  • Configuring a Trend Log Series in a Multi Trend Log List 
  • Removing a Trend Log from a Multi Trend Log List 
  • Exporting a Multi Trend Log List to .XML 
  • Exporting a Multi Trend Log List to .CSV 
  • Viewing Trend Logs in a Temporary Multi Trend Log List 
  • Saving a Temporary Multi Trend Log List
  • Saving a Multi Trend Log List Standard Layout
  • Multi Trend Log List Properties - Basic Tab
  • Multi Trend Log List View
  • Multi Trend Log List Toolbar
  • Multi Trend Log Settings Dialog Box – General Tab
  • Multi Trend Log Settings Dialog Box – Series Tab
  • Multi Trend Log List Header Context Menu
  • Multi Trend Log List Context Menu
  • Create Trend Log Wizard - Configure Multi Trend Log List Page
  • Multi Trend Log List Series Properties
  • Configure Dialog Box – Operation Tab
  • Viewing a Trend Chart in a Multi Trend Log List