The is available for download under Software on DEIF web page: Software - Get the latest version for full functionality (deif.com)
Direct link: Download MIC-2 Profi-Bus GSD-file here (deif.com)
To install the software do as follows:
You will receive the GSD-file for the MIC-2 for configuration of your master. You will receive the software as a zip-file, which have to be unzipped. The zip-file contains two files - one GSD-file for configuration and a DIB-file (graphically bit-map file) and a read_me.txt file - please read this carefully before proceeding.