OPC UA is a platform-independent standard that is used for communication among various types of devices and systems in the industrial domain. In order to integrate OPC UA FX with the 5G system, it is important to understand the core principles of the OPC UA, since the 5G system is the medium for establishing and maintaining connectivity between the components and various automation functions represented by FunctionalEntities (FEs). This report provides an overview of OPC UA FX and then investigates how it could be integrated with 5G and assesses its technology readiness level.