Figure 4-17. Signal During Simultaneous Sample-And-Hold Sampling - National Instruments SCXI-1520 User Manual

© National Instruments Corporation
Volts
CH 0
CH 1
CH 2
Hold
Line
Convert
1 HoldTime
2 Max (Min Settle Time of MIO, Min Settle Time of SCXI)
3 TrackTime

Figure 4-17. Signal During Simultaneous Sample-and-Hold Sampling

It is possible to enable and disable SS/H programmatically in NI-DAQmx,
although NI recommends that you leave SS/H enabled for most
applications. Disabling SS/H for one module disables this feature for all
modules in all chassis that are controlled by the same DAQ device. You
should only disable SS/H if your application does not require simultaneous
sampling and requires higher acquisition rates than are possible with SS/H
enabled. Refer to the Developing Your Application in NI-DAQmx
of Chapter 5, Using the
1 2
SCXI-1520, for more information about
4-29
Chapter 4 Theory of Operation
Time
3
section
SCXI-1520 User Manual