Historian and Data Logging > Adding Tags for Data Logging
  
Adding Tags for Data Logging
After you configure your tables for the tag historian, you can configure the tags for the historian.
To configure the tags for the tag historian:
1. Go to Edit > Tags > Historian.
•You can copy and paste tags from the Objects tab.
2. Enter or select information, as needed.
 
Column
Description
Name
Enter a tag name or click ... to select a tag.
DeadBand
When using the Save on Change option in the historian table, the DeadBand is how much the value must change (in EngUnits) for the system to store the value in the historian.
Deviation
When using the Time DeadBand option in the historian table, the Deviation is how much the value must change (in EngUnits) for the system to store the value in the historian. This value overrides the Time Deadband logging interval.
RateOfChange
When using the Time DeadBand option in the historian table, the RateOfChange is how much the value must change (in EngUnits) by second, for the system to store the value in the historian. This value overrides the Time Deadband logging interval
HistorianTable
Select the table that has the settings you want to use for when to save and how long to retain this tag’s value.
3. Continue adding as many tags as you need.
Other settings:
Use Binary Cache: Select this option to historian the tag historian data in binary blob columns instead of directly accessible values.
Changing this settings changes the storage format and the data on previous format is not automatically converted.
 
Use Binary Historian
Select this option to historian the tag historian data in binary blob columns instead of directly accessible values.
*Caution: Changing this settings changes the storage format and the data on previous format is not automatically converted.