In order to configure an isis model in fews you must configure the adaptor with an .ini file. The structure of the file is as follows:
Introduction
The ISIS/RS adapter for the EA FFS will be driven by an INI file created by ISIS. The purpose of the file is to identify the locations and unit types of the inputs, outputs and controls of the ISIS model in a form that the adapter can read without knowledge of the ISIS DAT file format.
...