DL205 Analog Manual, 7th Edition Rev. D
3-14
Chapter 3: F2-04AD-2 , F2-04AD-2L, 4-Channel Analog Voltage Input
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Module Resolution
Since the module has 12-bit unipolar resolution, the
analog signal is converted into 4096 counts ranging
from 0 - 4095 (2
12
). For example, with a 0–10V
scale, a 0V signal would be 0 and a 10V signal would
be 4095. This is equivalent to a a binary value of
0000 0000 0000 to 1111 1111 1111, or 000 to FFF
hexadecimal. The diagram shows how this relates to
the signal range.
Each count can also be expressed in terms of the
signal level by using the equation shown.
Each count can also be expressed in terms of the signal level by using the equation shown.
The following table shows the smallest detectable signal change that will result in one LSB
change in the data value for each input signal range.
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+V
0V
0 4095
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