Using OPC Link

OPC Link is a software for connecting OPC Server and InTouch.
Now it replaced by Factory Suite Gateway (FS Gateway). 

Installation Source:

From the CD Device Integration CD 1 of 2. Check in the OPC - OPC Link.

After installation finished, run the OPC Link (From Start -> All Programs -> Wonderware -> IO Server -> OPC Links

note: OPC Server also must active.

After running OPC Link, click on the Configure -> Topic Definition
Click New to create a new Topic.

Enter a topic name, ex my_opc
Browse a node name.
Then for the OPC Server Name, select from the dropdown list.
OPC Path, click the browse button on the right.

Setting in Wonderware InTouch:

On the Access name, use application name: OPCLINK
Topic name: my_opc

For item name:
EACH item name must start with a prefix:

d discrete values
i integer value
r real value
message value m

Suppose the OPC address is temperature (real), then the item name should be with prefix: rtemperature.