Hello. You can not have two analog input tasks in the same VI. However, you can easily add multiple channels to the same task. Check out the LabVIEW shipping examples at Help>>Find Examples. Navigate to Hardware Input Output >> DAQmx >> Analog Measurements >> Voltage. Using any of those examples, you can add a channel by changing the "Physical Channel" input. For example, to acquire data from channels 0-3 of device 1, use the following string "Dev1/ai0:3". Hope this helps!
-Alan A.
