Discrete, active low
Dry contact, active open
Dry contact, active closed
Pulse, high speed
Pulse, low speed (no hi-res)
Resistance, high resolution
Resistance, low resolution
Position pot, hi-res, 1K-30K
Position pot, lo-res, 1K-30K
Thermistor, 10K type III hi-res, F
Thermistor, 10K type II hi-res, F
Thermistor, 3K type II hi-res, F
Thermistor, 20K type IV hi-res, F
Thermistor, 5K type II hi-res, F
Thermistor, 10K type III hi-res, C
Thermistor, 10K type II hi-res, C
Thermistor, 3K type II hi-res, C
Thermistor, 20K type IV hi-res, C
Thermistor, 5K type II hi-res, C
Thermistor, 10K type III lo-res, F
Thermistor, 10K type II lo-res, F
Thermistor, 3K type II lo-res, F
Thermistor, 20K type IV lo-res, F
Thermistor, 5K type II lo-res, F
Thermistor, 10K type III lo-res, C
Thermistor, 10K type II lo-res, C
Thermistor, 3K type II lo-res, C
Thermistor, 20K type IV lo-res, C
Thermistor, 5K type II lo-res, C
The designation hi-res and lo-res refer to the A/D resolution. There are two types
of A/D in the ValuPoint. The 'hi-res' A/D is a delta-sigma integrating converter that
produces 15-bit results (16-bit including sign, which is always positive with the input
circuitry implemented). The 'lo-res' A/D is a fast successive approximation converter
which produces 10-bit results.
Due to the fact that 'hi-res' conversion is relatively slow (about 1/4 second compared
to a few microseconds for lo-res), some combinations of I/O are not possible. Low
speed pulse counting to 10Hz is only possible when all inputs are in lo-res mode. All
discrete or dry contact modes are lo-res. High speed pulse counting (to 1kHz) is
possible with any combination of modes; however high speed counting uses dedicated
hardware and is only available in inputs channels 13 and 14.
Low speed pulse counting in combination with hi-res input conversions is possible, but
input pulse rate is limited to about 2Hz. To increase this limit to 10Hz, all analog
8. Object Map Page
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