Advantech PCI-1710 - Manual (Page 38)

34 PCI-1710/1710HG User's Manual
4.5 A/D Channel Range Setting —
BASE+2
Each A/D channel has its own input range, controlled by a range code
stored in the on-board RAM. If you want to change the range code
for a given channel, select the channel as the start channel and the stop
channel in the registers of BASE+4 and BASE+5 (described in the
next section), and then write the range code to BASE+2 bit 0 to bit 2
and bit 4.
Table 4-3: Register for A/D channel range setting
S/D Single-ended or Differential
0 means the channel is single-ended, and 1 means it is differential.
B/U Bipolar or Unipolar
0 means the channel is bipolar, and 1 means it is unipolar.
G2 to G0 Gain Code
Write A/D channel range setting
Bit # 7 6 5 4 3 2 1 0
BASE+2 S/D B/U G2 G1 G0