Generate Tag Cluster
- Updated2025-07-28
- 2 minute(s) read
Creates or adds to an array of tag clusters, which specifies the tag data values for Multi Write to communicate.
The data type of the tag must match the polymorphic instance of the VI.

time stamp
Date and time to associate with the data value.
If you leave time stamp unwired, the server assigns a date and time when it receives the value. NI recommends you do not use this input in most cases. Only use time stamp when the value is associated with a measurement or something that occurred at a specific time.
tag clusters in
Clusters of tag write information from Generate Tag Cluster.
tag in
Reference to a tag on the server.
Use Open Tag or Query Tags to obtain this reference.
value
Data value of the tag. Wire a constant or control to this input of the same data type as the polymorphic instance.
error in
Error conditions that occur before this VI runs. The VI responds to this input according to standard error behavior.tag clusters out
Clusters of information to write to tags. Wire this output to Generate Tag Cluster to add additional values before wiring it to Multi Write, which sends all the values to the server at the same time.
tag out
Reference to a specific tag on SystemLink Server.
Use Open Tag or Query Tags to obtain this reference.