© National Instruments
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4-11
Table 4-3.
MIO X Series Analog Input Configuration
AI Ground-Reference
Setting
*
Floating Signal Sources
(Not Connected to
Building Ground)
Ground-Referenced
Signal Sources
†
Examples:
•
Ungrounded thermocouples
•
Signal conditioning with
isolated outputs
•
Battery devices
Example:
•
Plug-in instruments with
non-isolated outputs
Differential
Non-Referenced
Single-Ended (NRSE)
Referenced Single-Ended
(RSE)
*
Refer to the
Analog Input Ground-Reference Settings
section for descriptions of the RSE, NRSE, and
DIFF modes and software considerations.
†
Refer to the
Connecting Ground-Referenced Signal Sources
section for more information.
+
–
+
–
AI+
AI–
AI GND
S
ign
a
l
S
o
u
rce
DAQ Device
+
–
+
–
AI+
AI–
AI GND
S
ign
a
l
S
o
u
rce
DAQ Device
+
–
+
–
AI
AI
S
EN
S
E
AI GND
S
ign
a
l
S
o
u
rce
DAQ Device
+
–
+
–
AI
AI
S
EN
S
E
AI GND
S
ign
a
l
S
o
u
rce
DAQ Device
+
–
+
–
AI
AI GND
S
ign
a
l
S
o
u
rce
DAQ Device
Gro
u
nd-loop potenti
a
l (V
A
– V
B
)
a
re
a
dded
to me
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red
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ign
a
l.
NOT RECOMMENDED
+
–
+
–
AI
AI GND
V
B
V
A
S
ign
a
l
S
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DAQ Device
Содержание DAQ X NI 634 Series
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