The user manuals for the IQAN-MC4xFS and IQAN-MC3 give instructions on how to use the modules in a way that fulfills the safety requirements.
What these manuals do not get into detail on is where to use safety certified modules.
One reason to select safety certified controllers is for machines that are to be used in Europe, where the Machinery Directive is mandatory. Here is an article explaining how the requirements on functional safety evolve as state of the art in changing.
To illustrate how the Machinery Directive and standards drive the development, and to get an overview of system design with IQAN-MC4xFS, this set of presentation slides can be of use.
Also see the video on the Parker promotion page about functional safety in mobile machinery.
Customer support service by UserEcho