Tag Functions

Use tags to read and write data values between systems and SystemLink Server.

SystemLink Nodes and Functions Reference for NXG and G Web Development Software
Use SystemLink nodes in NXG or G Web Development Software to communicate data between your test and measurement systems and your SystemLink Server account.
Advanced Functions
Read or write multiple times in a single call to improve performance.
Build Path
Identifies the system and top-level application that generates the tag as a tag path.
Close Tag
Closes a tag reference or an array of tag references.
Delete Tag
Removes a tag or group of tags on the server.
Historian Functions
Retain historical tag values to review, troubleshoot, or analyze data over time.
Open Tag
Opens a reference to a tag on the server. If no reference of the tag exists on the server, the node creates one.
Query Tags
Searches the server for tags matching the criteria you specify.
Read Tag
Returns the value of the tag. The data type of the tag must match the configuration of the function.
Read Tag Settings
Returns the settings of a tag.
Reset Aggregates
Clears the aggregate information for a tag reference.
Write Tag
Specifies the value of the tag.The data type of the tag must match the configuration of the function.
Write Tag Settings
Specifies the settings of a tag. The node replaces existing tag settings on the server with the new settings.