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Details :
The Mixed Input/Output (I/O) module is part of the
special module collection that deserve special mention.
It provides a combination of features that satisfy
the needs of many smaller sites.
The Mixed I/O module provides eight digital inputs
that are identical to those found on the 16DI module.
There are also two 4-20 ma analog inputs that are
quite similar to those found on the 8AI module, the
difference being that 12 bit A/D converters are used
which provide 1600 steps in the 800-4000 active range
with ±0.1% accuracy (see Figure 10). Four relay
outputs are also provided: two of the relays have
Form A contacts and two relays have Form C contacts.
This option provides a module with four electrically-energized
relays
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