Hi I'm fairly new to labview and Keithley instruments. I've been working and writing a VI to control a Keithley 2401 and have run into a few problems. I am able to send commands to the instrument using my labview VI which will allow me to set up the sweep, the data store, and a few other simple functions, but for some reason in between every set of commands that I send (I send 1 string per command group. ex: for a sweep setup I send ":SOUR:VOLT 0E+0;:SOUR:DEL 0E+0;:SOUR:SWE:RANG BEST;:SOUR:VOLT:MODE SWE;:SOUR:SWE:SPAC LIN;:SOUR:VOLT:STAR 0E+0;:SOUR:VOLT:STOP 1E+0;:SOUR:VOLT:STEP 100E-3;:TRIG:COUN 11E+0;:OUTP ON;:READ?;") I am getting errors -420 and -410. Even though these errors show up the function is still read and the device performs the commands. I was just wondering why that error would come through. Also when I try to read my stored data by sending :TRAC:DATA? my VI shuts down and it doesn't read the information as I was expecting. Any pointers or ideas would be greatly appreciated.
Thanks,
Chad