Thank you both for the replies!
Allow me to clarify a bit: These would not be major OS updates. For software updates, these would be the typical packages that technicians/integrators/maintenance would download onto USB sticks, then download to the controllers. An example of this would be a V9.40P63_Auto_Update package from fanuc's website.
We are looking to get rid of that 'middle-man' USB for security reasons and cut down on the time it takes techs to deploy regular, standard OEM update packages.
Thanks again!