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How does Vijeo Designer Runtime determine when to use Simulated SRAM?

Today in Vijeo Designer, there isn't any link between the data location settings and where the SRAM simulation file is actually stored. In fact, there is a series of checks that are done to determine the best place to store this internal file.
The algorithm is something like this:
if HMI has physical SRAM chip:
                        --> Start Runtime normally and use SRAM chip
If HMI has no physical SRAM chip:
check existence of Secondary Drive
                        --> If exists, store Simulated SRAM file on Secondary
                        --> else check existence of Optional. 
                                              --->If exists, store file on Optional
                                              --->else error and refuse to start Runtime
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