©
National Instruments Corporation
63
NI 9144 User Guide and Specifications
Use the calibration coefficients with the following equation to generate
corrected data:
NI 9401
NI 9401 Direction Control
Note
Both the input and output bytes are transmitted in the PDO regardless of the
direction control; only the relevant bits are connected to the I/O pins.
NI 9403
Table 62.
NI 9401 Vendor Configuration Extensions
Index
Sub
Type
R/W
Description
0x2001
0
U32
R/W
Nibble direction
control,
default = 0
Table 63.
NI 9401 Scan List Format
Bits
Field
1
0: data bits 3:0 as input
1: data bits 7:4 as output
0
0: data bits 3:0 as input
1: data bits 7:4 as output
Table 64.
NI 9403 Vendor Configuration Extension
Index
Sub
Type
R/W
Description
0x2001
0
U32
R/W
I/O direction
control,
default = 0
I
desired
Code
(
)
Code LSB
weight
•
pA
bits
---------
⎝
⎠
⎛
⎞
10
12
–
•
A
pA
-------
⎝
⎠
⎛
⎞
Offset pA
(
)
10
12
–
A
pA
-------
⎝
⎠
⎛
⎞
•
+
=