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Chapter 2
DAQ System Overview
©
National Instruments Corporation
2-5
Programming Devices in Software
National Instr
u
ments meas
u
rement devices are packaged with NI-DAQ
driver software, an extensive library of f
u
nctions and VIs yo
u
can call from
yo
u
r application software, s
u
ch as LabVIEW or LabWindows/CVI, to
program all the feat
u
res of yo
u
r NI meas
u
rement devices. Driver software
has an application programming interface (API), which is a library of VIs,
f
u
nctions, classes, attrib
u
tes, and properties for creating applications for
yo
u
r device.
USB-621
x
devices
u
se the NI-DAQmx driver. NI-DAQmx incl
u
des a
collection of programming examples to help yo
u
get started developing an
application. Yo
u
can modify example code and save it in an application.
Yo
u
can
u
se examples to develop a new application or add example code to
an existing application.
To locate LabVIEW, LabWindows/CVI. Meas
u
rement St
u
dio, Vis
u
al
Basic, and ANSI C examples, refer to the KnowledgeBase doc
u
ment,
Where Can I Find NI-DAQmx Examples?
, by going to
ni.com/info
and entering the info code
daqmxexp
.
For additional examples, refer to
zone.ni.com
.
Table 2-1 lists the earliest NI-DAQmx s
u
pport version for each
NI USB-621
x
device.
Table 2-1.
NI USB-621
x
NI-DAQmx Software Support
Device
NI-DAQmx Version Support
USB-6210/6211/6215/6218 Screw
Terminal
NI-DAQmx 8.3 and later
USB-6212/6216 Screw Terminal
NI-DAQmx 8.6 and later
USB-6212/6216 Mass Termination
NI-DAQmx 8.7.1 and later
USB-6212/6216/6218 BNC
NI-DAQmx 8.9 and later