National Instruments NI 9144 User Manual - page 91
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372498J-01
Jun14
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where
Raw represents raw data returned by the NI 9381
V
corrected
represents the corrected voltage value
NI 9381 Digital Channel Direction Control
Note
Both the input and output bytes are transmitted in the PDO regardless of the
direction control. You only connect relevant bits to the I/O pins.
NI 9401
The vendor configuration extensions for the NI 9401 are listed in Table 103.
NI 9401 Direction Control
Table 102.
NI 9381 Digital Channel Direction Control
Bits
Field
3
0: data bit as input
1: data bit as output
2
1
0
Table 103.
NI 9401 Vendor Configuration Extensions
Index
Sub
Type
R/W
Description
0x2001
0
U32
R/W
Nibble direction control, default = 0
Table 104.
NI 9401 Scan List Format
Bits
Field
1
0: data bits <3..0> as input
1: data bits <7..4> as output
0
V
corrected
Raw
LSB
weight
10
×
7
–
(
)
×
Offset 10
×
5
–
+
=