Control Solutions’ AddMe III features 18 analog/universal inputs
with confi gurable type and scaling. You can individually confi gure
each universal input for high resolution analog, fast analog, or discrete
input. When confi gured as an analog input, the continuously
self-calibrating sigma-delta converter produces 15-bit resolution
with high noise immunity. When confi gured as a discrete or fast
analog input, the converter switches to 10-bit resolution at 128
samples per second for fast response. All I/O points are accessed
as BACnet objects (AI, AO, BO).
Analog Input objects provide data from the analog I/O points. Linearization
tables are provided for 3K, 10K and 20K type II, III, and
IV thermistors. Input type and scaling is confi gured by writing to
BACnet object properties. Additional uncommitted writeable objects
are available for data exchange with the user program.