Hi Theo1,
as you stated correctly LV 8.5.1 is the last version that supports the cFP-2000 system.
There aren't any limitations regarding FieldPoint with older LabVIEW versions in general, but not all FieldPoint driver versions are supported by older LV-versions, so the restrictions mainly result from the driver you're using.
The minimum installation for FieldPoint is:
- FP driver
- FP VI manager
- LV RealTime
- NI Watchdog
The FP driver is needed to recognize and configure the device, the driver also includes the programming API. As the cFP-controller runs an Real-Time Operating system you will need the LV real time module to be able to program it.
Further information regarding the NI watchdog can be found here and here
Hope that answers your questions.
Regards,
Bernd