hi
I am using the analog input function of NI USB-6009 to collect the Voltage from a sensor. In order to measure the noise, I input 0 V signal into the DAQ, and i got the noise. But after that when I initilaized the DAQ when I want to change the sampling rate or other parameters , DAQ displays *invalid input* and a dialoug will be displayed*A defective edge is not added to the wire. *(不良エッジはワイヤに追加されません。) then the program will be ended abnormally.
I suspected maybe the DAQ have been damaged by the short input. But when I use it in the original program, it can still work.
Thanks!
