It is my understanding that , there would be a application with the Digi. With this application ,
you can get from the module is a copy of the flash image which will be in binary. It is not in a human readable form. Also, it cannot be used by Dynamic C to program another module. It may be possible to convert the memory image to a file that Dynamic C can download.
To get this application you need to contact Digi tech support at this mail email@example.com. They may help you.