5. Functions
AO-1604LX-USB
37
Output data
Output data = ((Voltage – Min. range value) x Resolution) / (Max. range value – Min. range value)
The value of resolution for the 16-bit device is 65536.
The table below shows the relationship between output data and voltage in the ±10-V range.
Voltage
Output data(16-bit)
+9.99970V
65535
:
:
0.00030V
32769
0V
32768
-0.00030V
32767
:
:
-10.000V
0
Ex.: When 3V is output at a resolution of 16bit in the ±10V range
Output data
= (3 - (-10))
x
65536 ÷ (10 - (-10))
= 42598.4 *
*
The value that can be set as output data at this time is an integer. Select "42598" or "42599" as the
output data.
The analog signal corresponding to the output data contains an error as follows:
- Output data "42598" converted to: 2.9998 V
- Output data "42599" converted to: 3.0001 V
This error is a consequential error occurring when output data is obtained from an expected analog
value.
