The available memory on FieldPoint targets depends on the LabVIEW RT version installed on the system. Please refer to
this link that contains information about the memory footprint of the various LV RT versions.
While downloading the application from the LabVIEW environment there is
a considerable amount of RAM-usage overhead. When you use the
application builder (as tst has suggested) to build and download your
application this overhead is significantly reduced and you should be
able to download bigger applications.
Jochen