13-1
3700AS-909-01 Rev. B / December 2011
In this section:
Model 3750 multifunction I/O card.......................................... 13-1
Available accessories: Model 3750 ........................................ 13-2
Connection information: Model 3750...................................... 13-2
Schematics: Model 3750 ........................................................ 13-3
Model 3750 additional information ......................................... 13-4
Digital I/O ............................................................................... 13-4
Counter/totalizer..................................................................... 13-8
Analog output ....................................................................... 13-10
Using match counts.............................................................. 13-18
Latching values .................................................................... 13-19
Power consumption implications .......................................... 13-19
Introduction to the Model 3750 Card
The Model 3750 Multifunction I/O Card has 40 bidirectional digital I/O bits arranged in five banks of
eight bits each. Each bank can be configured as either inputs or outputs. One bank of I/O is
equivalent to one system channel.
The two analog outputs of the Model 3750 can be individually configured as either voltage outputs
(+/- 12 V) or as current outputs (0 mA to 20 mA or 4 mA to 20 mA).
Four 32-bit counters are provided with a maximum input range of 1 MHz. Each counter has a gate
input for control of event counting.
Figure: Model 3750 card
Figure 64: Model 3750 Multifunction I/O Card
Section 13
Model 3750 multifunction control card
