Aspects describe multiple interface support that provides dynamic switching between new and old interface revisions. A first interface application is selected from a set of alternative interface applications for an industrial automation system. Support for each interface application included in the set of alternative interface applications is provided. A second interface application is downloaded and associated with the first interface application. The second interface application is enabled during runtime. If needed, the second interface application can be selectively disabled and an operation resumed with the first interface application.

A method includes identifying device description files corresponding to first and second field devices associated with an industrial process control system. The method also includes comparing multiple field device characteristics of the first and second field devices using the device description files. The method further includes identifying any differences between the device characteristics of the first field device and the device characteristics of the second field device. In addition, the method includes determining a compatibility of the first and second field devices based on any identified differences. The field device characteristics can relate to field device attributes, field device function blocks, and function block parameters of the first and second field devices.