National Instruments NI WLS/ENET-9163 - Manual (Page 22)

NI WLS/ENET-9163 Carrier User Guide and Specifications 22 ni.com
Simultaneous Sample-and-Hold
Simultaneous sample-and-hold (SSH) C Series analog input modules
contain multiple A/D converters or circuitry that allows all the input
channels to be sampled at the same time. These modules sample their
inputs on every AI Sample Clock pulse.
Sigma-Delta
Sigma-Delta C Series analog input modules function much like SSH
modules, but use A/D converters that require a high-frequency oversample
clock to produce accurate, synchronized data.
This clock is used as the AI Sample Clock Timebase. While most modules
supply a common oversample clock frequency (12.8 MHz), some modules,
such as the NI 9234, supply a different frequency. The sampling
is an integer divisor of the frequency of the AI Sample Clock Timebase.
Getting Started with AI Applications in Software
You can use the NI WLS/ENET-9000 Series device in the following analog
input applications:
• Single-Point
• Finite
• Continuous
For more information about programming analog input applications and
triggers in software, Refer to the NI-DAQmx Help or the LabVIEW Help in
version 8.0 or later for more information.
The NI-DAQmx Help is available after installation from Start»Programs»
National Instruments»NI-DAQ»NI-DAQmx Help. To view the
LabVIEW Help, in version 8.0 or later, select Help»Search the LabVIEW
Help in LabVIEW. Alternately, to download the LabVIEW Help, go to
ni.com/manuals .