Tag Add Options
Allows you to set the following options:
Field | Description |
---|---|
Overwrite Existing Tags | Selecting this option allows Historian to replace certain tag properties if the tags already exist in the Historian tag database. |
Migrate Current Alarm | Whether or not the Migration Utility creates a tag and migrates the Current Alarm of each data sample (B_CUALM). Classic Historian paired the B_CUALM tag inside another tag and counted it as one. If this is enabled, the Historian Classic Migration Utility will separate these tags and add them both to the tag database.Important: If you wish to migrate alarm and event data from iFIX to Historian, use the iFIX Alarm and Event Migration Tool. For example: The Classic Historian Tag: FIX.TAG1.F_CV will convert to the Historian Tags: FIX.TAG1.F_CV ,FIX.TAG1.B_CUALM Note: If you clear the Migrate Current Alarm check box, the Current Alarm tags are not created and the alarm information is not transferred into Historian. |
Data Add Options Overwrite Existing Values | Whether or not the Classic Migration Utility overwrites existing values that have the same timestamp as the values being migrated in an active Historian database during migration. |
Time Options Treat as DST Timestamp | Whether the migration should consider Daylight Savings Time (DST) when determining a UTC timestamp for migrated data. The timestamps are converted to UTC time by adjusting the time based on the local computer time zone offset and DST setting. For more information, refer to Managing Daylight Savings Time. |