Chapter 10 Analog I/O Option Board (XBO-AH02A)
10.5.2 Input accuracy
Accuracy for analog output value does not changed even if output range is changed. Figure below
shows the range of the accuracy with analog output range of 0 ~ 10 V and digital output type of
unsigned value selected.
Accuracy of XBO-DA02A is ±1.0%.
2000 40000
10V
0V
5V
10.1V
9.9V
0.1V
-0.1V
Digital input
Analog output
20mA
20.2mA
19.8mA
0mA
0.2mA
-0.2mA
10mA
(1) Accuracy in case of 5V output
4000 × 1.0% = 40
So in case of 5V output, accuracy range is
(5V - 40×0.0025V) ~ (5V+40×0.0025V) = 4.9 ~ 5.1V
(2) Accuracy in case of 10V
4000 × 1.0% = 40
So in case of 10V output, accuracy range is
(10V-40×0.0025V) ~ (5V+40×0.0025V) = 9.9 ~ 10.1V
10 - 11
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