Summary
The ‘Add/Edit Tag’ panel helps the user configuring a new tag or editing an existing tag in a very user-friendly way. Before a tag can be created, a connection must be configured in Automation Portal Historian.
The user can open the ‘Add/Edit Tag‘ panel by clicking the ‘Add New Tag’ icon to create a new tag or by clicking the ‘Edit Tag’ icon to edit an existing tag.
Tabs
The ‘Add/Edit Tag’ panel consists of several tabs. An overview of the tabs with descriptions is shown below.
The general tab allows the user to set or edit the general parameters of the tag.
- Connection Name: Shows the connection name to which the tag is assigned. This field cannot be edited.
- Tag Name: Specifies the name of the tag. The tag name must be unique and cannot be changed once the tag is created.
- Description: Specifies a short description of the tag.
- Enable Tag: Allows the user to enable or disable tag. The tag is enabled by default.
The scanrate tab allows the user to define scan rate settings.
- Scan Cycle: Specifies how often the AP Historian requests data for the tag.
The addressing tab allows the user to define the addressing settings for the tag.
- Client Access: Specifies the client access of the tag. When ‘Read Only’ is selected, the tag can only be read from the connection by AP Historian. When ‘Read Write’ is selected, the tag can be both read and written from/to the connection by AP Historian.
- Data Type: Specifies the data type of the tag. Read more about data types.
- Others: Other settings are driver specific. For a more driver specific overview of the tag addressing settings, click the driver link below:
The archiving tab allows the user to define archiving settings.
- Enable Archiving: Allows the user to enable or disable archiving for the tag. The archiving is disabled by default.
- Deadband Type: Specifies the deadband type when archiving is enabled. Following options are possible:
- None: No deadband is active, every change of the value will be logged in AP Historian.
- Absolute: Specifies the absolute range within which the value must change at least to be logged in AP Historian.
- Percentage: Specifies the range in percent withtin which the value must change at least to be logged in AP Historian.
- Absolute: Specifies the absolute deadband value when deadband type ‘Absolute’ is used.
- Scaled Low Limit: Specifies the scaled low value when deadband type ‘Percentage’ is used.
- Scaled High Limit: Specifies the scaled high value when deadband type ‘Percentage’ is used.
- Percentage: Specifies the percentage value when type ‘Percentage’ is used.
The additional info tab allows the user to define the additional info of the tag.
- Instrument Tag: Specifies the tag
- Instrument Location:
- Engineering Unit:
Procedure to add a new tag
Step 1: First select the connection for which a new tag should be created.
Step 2: Secondly, click the ‘Add New Tag‘ icon.
Step 3: Next, fill in all general tag parameters in the ‘General‘ tab.
Step 4: Click the ‘Scanrate‘ tab to change the scanrate if needed.
Step 5: Then, click the ‘Addressing‘ tab and fill in the addressing parameters.
Step 6: If archiving is needed, click the ‘Archiving‘ tab and fill in the archiving parameters.
Step 7: Additional tag info can be entered in the ‘Additional Info‘ tab but is not required.
Step 8: Finally, click ‘Save’ to save the tag in Historian.
