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Chapter 2
DAQ System Overview
2-2
ni.com
DAQ Hardware
DAQ hardware digitizes signals, performs D/A conversions to generate
analog output signals, and measures and controls digital I/O signals. The
following sections contain more information about specific components of
the DAQ hardware.
Figure 2-2 shows the components of the non-isolated S Series (NI 6124)
device.
Figure 2-2.
General NI 6124 Block Diagram
An
a
log O
u
tp
u
t
Digit
a
l I/O
An
a
log Inp
u
t
Co
u
nter
s
PFI
RT
S
I
B
us
Interf
a
ce
B
us
I/O Connector
Digit
a
l
Ro
u
ting