Advantech MIC-3716, Manual

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C.5 A/D Channel Range Setting — BASE+2
Each A/D channel has its own input range, controlled by a gain code
stored in the on-board RAM.
To change the range code for a channel:
w
Write the same channel in BASE+4 (the start channel) and
BASE+5 (the stop channel) (refer to Section C.6 ).
w
Write the gain code to BASE+2 bit 0 to bit 2.
Table C-3: Register for A/D channel range setting
Write A/D Channel Range Setting
Bit # 7 6 5 4 3 2 1 0
BASE + 2 S/D B/U G2 G1 G0
S/D Single-ended or Differential
0 single-ended
1 differential.
B/U Bipolar or Unipolar
0 bipolar
1 unipolar.
G2 to G0 Gain Code (listed as Table C-5 )