J. G. Lynch
When setting scanInterval to zero, the second scan sequence will begin one sampInterval later.
Therefor if you set sampInterval to 10 msec, with three channels. The first channel will be sampled at t0, the second at t0+10 msec, the third at t0+20msec and the first will be sampled a second time at t0+30msec.
I hope this answers your question.
Brian