© National Instruments
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2-1
2
DAQ System Overview
Figure 2-1 shows a typical DAQ system, which includes sensors, transducers, signal
conditioning devices, cables that connect the various devices to the accessories, the M Series
device, programming software, and PC. The following sections cover the components of a
typical DAQ system.
Figure 2-1.
Components of a Typical DAQ System
DAQ Hardware
DAQ hardware digitizes signals, performs D/A conversions to generate analog output signals,
and measures and controls digital I/O signals. Figure 2-2 features components common to all
M Series devices.
Figure 2-2.
General M Series Block Diagram
S
en
s
or
s
a
nd
Tr
a
n
s
d
u
cer
s
S
ign
a
l
Conditioning
DAQ
H
a
rdw
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re
Per
s
on
a
l Comp
u
ter
or
PXI/PXI Expre
ss
Ch
ass
i
s
DAQ
S
oftw
a
re
C
ab
le
s
a
nd
Acce
ss
orie
s
An
a
log O
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tp
u
t
Digit
a
l I/O
An
a
log Inp
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t
Co
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nter
s
PFI
Digit
a
l
Ro
u
ting
a
nd Clock
Gener
a
tion
B
us
Interf
a
ce
B
us
I/O Connector
RT
S
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Содержание PCI-6281
Страница 1: ...PCI 6281...
