National Instruments Deterministic Ethernet Expansion Chassis NI 9144 - Manual (Page 25)

© National Instruments Corporation 25 NI 9144 User Guide and Specifications
Bits 23..16 describe the data offset to store a conversion at time t, and
bits 3..0 describe the conversion control code that will take effect
two conversions in the future, at time t+2. On the NI 9203, bit 3 determines
whether the result is bipolar (signed) or unipolar (unsigned), and bits 2..0
are the channel number reversed.
So, for example, the scan list entry 0x00010006 indicates that this scan gets
stored at address 1, and the conversion two is a bipolar channel 3
(3 reversed = 6).
3 Bipolar = 0, Unipoloar = 1
2:0 Channel Code[t+2]
Table 10. NI 9203 Channels/Reversed Bits
Channel Reversed Bits
0 = 0b000 0b000 = 0
1 = 0b001 0b100 = 4
2 = 0b010 0b010 = 2
3 = 0b011 0b110 = 6
4 = 0b100 0b001 = 1
5 = 0b101 0b101 = 5
6 = 0b110 0b011 = 3
7 = 0b111 0b111 = 7
Table 9. NI 9203 Scan List Format (Continued)
Bits Field