This question does not really apply to FieldPoint/Compact FieldPoint. Different FieldPoint modules have different input ranges. By changing the range of a channel, the gain may be adjusted automatically. A user has no direct control over the gain. FieldPoint and Compact FieldPoint IO Modules have input ranges from +/- 25 mV to +/- 120 Volts depending upon the module. What sort of signal ranges are you looking for?
Regards,
Aaron
LabVIEW Champion, CLA, CPI