I've come back to this project after not getting it to work a year ago.
My issue might not be specifically with LabVIEW 8.2, but with any attempt to run an Analog Input Scan on the USB-1208FS-Plus.
If I run the Analog Scan Test in Instacal 6.74, Scan Channels 0 through 2, 1000 Hz, Continuous, Instacal collects no data.
If I run the same Instacal test but change the Scan Mode from Continuous to Single, then the LED flashes, the Stop button does nothing, and Instacal become nonresponsive until I unplug the -Plus board from the USB.
Running the same Analog tests in the same Instacal with the USB-1208FS (not -Plus) gets a good scan in Continuous and in Single mode.
Similar results using DAQami with the USB-1208FS (works great) and the USB-1208FS-Plus (does not get any data on an Analog Input scan).
In LabVIEW 8.2 I've tried every scan mode with AInScFg.vi. They all either continuously flash the LED and freeze the software until the USB is unplugged, or they report "Invalid Sample Mode". And the issues are only with the -Plus board; the USB-1208FS works great.
I'm not sure what else to try. I need to be able to scan 3 channels at 1000 S/s per channel.