System tags

Using system tags provides system-related information and standard functions like date and time for InTouch scripting. System tags are part of all applications. You can also use system tags in scripts to manage a running application like:

• Monitoring and managing application security.

• Establishing I/O communications to a remote node.

• Detecting when an alarm occurs.

• Starting and stopping historical logging.

• Updating an application to a new version with NAD.

System tags are identified by a dollar sign ($) as the first character of a tag's name in the Tagname Dictionary. System tags cannot be deleted. You can only change the comment associated with the system tag.