Access InTouch tag data from other applications

When another application requests a data value from the InTouch HMI, it also must know three I/O address items. Follow these InTouch I/O address conventions.

VIEW (application name) identifies the InTouch run-time program that contains the data element.

TAGNAME (topic name) is the word always used when reading/writing to a tag.

ActualTagname (Item Name) is the actual tag defined for the item in the InTouch Tagname Dictionary.

For example, to access a data value in the InTouch HMI from Excel, a DDE Remote Reference formula is specified for the cell in which the data is written:

=VIEW|TAGNAME!'ActualTag_name'