646 Agilent InfiniiVision 2000 X-Series Oscilloscopes Programmer's Guide
30 :WAVeform Commands
 
sngYIncrement = Preamble(7)
sngYOrigin = Preamble(8)
lngYReference = Preamble(9)
See complete example programs at: Chapter 38, “Programming Examples,” 
starting on page 799