Michael,
Unfortunately, at the current time, the standard FieldPoint VI's (FP Open.vi, FP Create Tag.vi, etc...) will only work to talk to the FieldPoint I/O modules that are directly connected to the FP-20XX. In order to control a FP-1000/1001 system via the serial port of the FP-20XX, you should use the FieldPoint Optomux VI's. These VI's correspond to the Standard and Extended Optomux Command sets as documented in the FP-1000/1001 Progammers Reference Manual. The manual can be downloaded from:
http://www.ni.com/pdf/manuals/321632c.pdf
The FieldPoint Optmux VI's will be installed automatically with FieldPoint Explorer 3.0 or later if LabVIEW RT 6.0.3 (or later) is on the machine. Otherwise, they can be installed by doing a custom install of FieldPoint Explo
rer or downloading from:
ftp://ftp.ni.com/support/fieldpoint/LVFPOpto/
Personally, I have used the VI's to control multiple FP-1000/1001's without difficulty from my FP-20XX modules.
Regards,
Aaron
LabVIEW Champion, CLA, CPI