Справочник Пользователя для National Instruments NI 9144

The scan list channel codes consist of eight bit fields in a 32-bit entry.

Bits 23..16 describe the data offset to store a conversion at time t, and 
bits 15..0 describe a complex conversion control code that takes effect 
two conversions in the future, at time t+2. On the NI 9205/9206, this 
conversion code is listed in Table 16.

Table 14.  NI 9205/9206 Vendor Configuration Extensions

0x2001

0

ARR:U32

Scan List = 33

1

R

Channels to Convert = 1..32, default = 32

2..33

R/W

Channel Code

0x2100

0

ARR:U32

—

Calibration = 24

1

R

Coeff 3

2

R

Coeff 2

3

R

Coeff 1

4

R

Coeff 0

5

R

10 V offset

6

R

10 V gain

7

R

5 V offset

...

—

—

13

R

User calibration, Coeff 3

...

—

—

Table 15.  Scan List Format

31:24

= 0

23:16

Data Offset[t]

15:0

Conversion Code[t+2}