A/D Range Control - Base+1 - Advantech PCM-3718 Series User Manual

4.3 A/D Range Control - BASE+1

Each A/D channel has its own individual input range, controlled by a
range code stored in the onboard RAM. If you want to change the range
code for a given channel, select the channel as the start channel in register
BASE+2, MUX scan (described in the next section), then write the range
code to bits 0 to 3 of BASE+1.
BASE+1 (write only) - A/D range control code
Bit
Value N/A
PCM-3718H and PCM-3718HO range code:
Input Range (V)
±5
±2.5
±1.25
±0.625
0 to 10
0 to 5
0 to 2.5
0 to 1.25
±10
N/A
N/A
N/A
N/A
N/A
N/A
N/A
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D7 D6 D5
N/A N/A
Unipolar/
Bipolar
B
B
B
B
U
U
U
U
B
D4 D3 D2
N/A G3 G2
Range Code
G3 G2
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
32
D1 D0
G1 G0
G1 G0
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1