There is a walkthrough guide available that covers the steps necessary to browse KEPServerEX / ThingWorx Industrial Connectivity, using the ThingWorx Industrial Connections interface:
This document covers the steps to browse and select KEPServerEX tags, then bind these tags as properties to a newly created Thing, using the "RemoteThing" Base Thing Template, and the "IndustrialThingShape" Implemented Shape.
Further down in that same guide, you can read a description of the Services being utilized in this workflow. For example, the "GetPropertyDiagnostics" Service, which is inherited from the "IndustrialThingShape", returns property parameters like the Tag Address, Data Type, Current Value, and Current Quality. Is this the information you would like to display in your mashup?
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