Allen-Bradley 1794-IE4XOE2 Series B, User Manual, Page: 65 / 73

Data Table Formats C–2
Publication 17946.5.2 - May 1996
The data returned from the analog-to-digital converter in the module
is 12-bit resolute. This value is left-justified into a 16-bit field,
reserving the most significant bit for a sign bit.
14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
11 10 09 08 07 06 05 04 03 02 01 00
S
S
14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
10 09 08 07 06 05 04 03 02 01 00
S
S
14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
11 10 09 08 07 06 05 04 03 02 01 00
0*
A/D Unipolar Data
Analog Value
A/D Bipolar Data
Analog Value
D/A Data
Analog Value
⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓
⇓
⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓
⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓ ⇓
*
= Always positive
Output
Input
Current (mA) 4-20mA Mode 0-20mA Mode Voltage (V)
+10 Volt Mode
0-10 Volt
M d
Current (mA) 4-20mA Mode 0-20mA Mode Voltage (V)
Input Output
0 10 Volt
Mode
-10.50 8000 8000
0.00 0000 -10.00 8620 8618
1.00 0618 -9.00 9250 9248
2.00 0C30 -8.00 9E80 9E78
3.00 1248 -7.00 AAB0 AAA8
4.00 0000 1860 -6.00 B6E0 B6D8
5.00 0787 1E78 -5.00 C310 C310
6.00 0F0F 2490 -4.00 CF40 CF40
7.00 1696 2AA8 -3.00 DB70 DB70
8.00 1E1E 30C0 -2.00 E7A0 E7A0
9.00 25A5 36D8 -1.00 F3D0 F3D0
10.00 2D2D 3CF0 0.00 0000 0000 0000
11.00 34B4 4310 1.00 0C30 0C30 0C30
12.00 3C3C 4928 2.00 1860 1860 1860
13.00 43C3 4F40 3.00 2490 2490 2490
14.00 4B4B 5558 4.00 30C0 30C0 30C0
15.00 52D2 5B70 5.00 3CF0 3CF0 3CF0
16.00 5A5A 6188 6.00 4920 4928 4928
17.00 61E1 67A0 7.00 5550 5558 5558
18.00 6969 6DB8 8.00 6180 6188 6188
19.00 70F0 73D0 9.00 6DB0 6DB8 6DB8
20.00 7878 79E8 10.00 79E0 79E8 79E8
21.00 7FFF 7FF8 10.50 7FF0 7FF8 7FF8
Analog Data Format