Remote tag references

You can create distributed InTouch applications with a tag server running on a separate node from the node running the InTouch application. The following figure shows an InTouch application that makes a remote reference to the PumpRPM tag from a tag server running on another node.

You create an InTouch application to reference tags located on a remote node by two methods:

• Associate I/O tags with an Access Name that identifies a remote server as the tag source. For more information about defining an Access Name for an I/O tag, see Set up access names.

• Use a remote reference directly to the tag. For example, PLC1:PumpRPM.

For more information, see Access I/O data by remote references.