Contec PC-HELPER Series Reference Manual page 65

 Conversion data
The following equation represents the relation between conversion data and voltage.
Voltage or Current = Conversion data x (Max. range value - Min. range value) ÷ Resolution + Min.
range value
The value of resolution for the 12-bit device is 4096; that for the 16-bit device is 65536.
< ±10V range >
The following tables show the relationship between AD conversion data and voltage.
Voltage Conversion data (12-bit)
+9.995V
:
+0.005V
0V
-0.005V
:
-10.000V
Ex.: When conversion data 3072 is input at a resolution of 12-bit in the ±10V range
Voltage = 3072 x (10 - (-10)) ÷ 4096 + (-10)
= 5.0 (V)
< 0-10V range >
The following tables show the relationship between AD conversion data and voltage.
Voltage Conversion data (12-bit)
+9.998V
:
+5.002V
5V
-4.998V
:
-10.000V
Ex.: When conversion data 3072 is input at a resolution of 12-bit in the 0-10V range
Voltage = 3072 x (10 - 0) ÷ 4096 + 0
= 7.5 (V)
—
Function
AI-1204Z-PE Reference Manual
4095
:
2049
2048
2047
:
0
4095
:
2049
2048
2047
:
0
— 65 —
—
Voltage Conversion data (16-bit)
+9.99970V
:
0.00031V
0V
-0.00031V
:
-10.000V
Voltage Conversion data (16-bit)
+9.99985V
:
+5.00015V
5V
4.99985V
:
-10.000V
65535
:
32769
32768
32767
:
0
65535
:
32769
32768
32767
:
0