Runtime used by ABI to SCMI converter cmi_changer.sh can be found at ftp://ftp.ssec.wisc.edu/pub/shellb3/ShellB3-Linux-x86_64-CentOS6-20170505-r52b291ad-py3-portable-core-scmi.tar.xz .
You can also use your own python runtime, it requires python 3.6 with pyproj, netCDF4, and numpy. Continuum.io Anaconda provides a good stack with these easily installable.