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Details :
All AI modules connect to analog (value) sensors.
This option provides eight ±1 Vdcinputs. Each
of the 8 inputs, plus ground and temperature, are
opto-switched into a precision A-to-D converter; ground
is measured so short-term drift may be cancelled and
temperature is measured so that the temperature drift
associated with all silicon-based chips may be negated.
The result is 13 bit resolution of the analog input;
simply put, there are 8000 steps over the total range
with an accuracy of ±0.05%. This module utilizes
the total range as their active range.
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