keithley 2601 error 1074000000

[jayhawkeye13]

Trying to run Keithley 2601A with labview connected via TCPIP ethernet.  I am attempting to run one of the examples provided by Keithley and it gives me an error when trying to apply a potential and measure concurrently.  The example I am attempting to run is advancedsweep.vi.  It gives me the error 1074000000.  I had it explain the error, but I didn't find it helpful.  Any ideas?  I attached a screen shot of the explained error.

[Albert.Geven]

the previous action overlapping probably means that the first part of the vi still is generating data and the machine already asks for this data.

try to ask a small sweep and extend some waiting parameters.