DT9817 Series

Low Cost Digital I/O Modules for USB

Overview
The DT9817-H and DT9817-R are low-cost modules thatoffer digital inputs, digital outputs, and 32-bit counter/timer functions.

DT9817-H
28 programmable digital I/O lines with high drive
capability to drive solid state relays and one 32-bit
counter/timer

DT9817-R
8 isolated digital input lines with an input voltage rangeof ±3 V to ±32 V and 9 isolated digital output lines
capable of switching up to ±30 V at 400 mA. Includes one
32-bit counter/timer.

Supported Operating Systems

The DT9817 Series low cost digital I/O modules provide
a variety of options for the user in a shielded, rugged
enclosure.

• Windows® 10/8/7/Vista®/XP 32/64-bit

OutputPower Fully
Loaded64 mA—<150 mA—±30 V @ 400 mA<150 mA

ModuleApplication

Digital I/O

Counter/Timer

Isolation

SourceSink

DT9817-H

Solid State Relay

28 programmable

1, 32-bit

—

15 mA

DT9817-R

Mechanical Relay

16 (8 in, 8 out)

1, 32-bit

Up to 500 V—

The DT9817-R offers 8 digital input lines, 8 digital output
lines, and one counter/timer channel. The 8 outputs arecapable of switching up to ±30 V @ 400 mA(508) 946-5100

The DT9817-H offers 28 programmable digital I/O lines andone counter/timer channel. The DT9817-H is perfect for
driving solid state relays.

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DT9817-H

Counter/Timer Subsystem

The DT9817-H is a low-cost, non-isolated digital I/O
module with 28 programmable lines. These 28 lines
are organized as three 8-bit ports and one 4-bit port.
These ports can be configured as input, output, or any
combination required. This module offers high-drive
capability that sinks 64 mA and sources 15 mA for driving
sold-state relays. It has one, 32-bit counter/timer.

The counter/timer subsystem on these modules can berun by an internal or external clock source.

• Internal clock – Through software the user canspecify the frequency at which to pace the counter/timer operation. This frequency can range from
4 Hz to 12 MHz (4 Hz to 2.5 kHz for the DT9817-R).
• External clock – The user connects an external
clock source with a maximum frequency of 6 MHz
and then uses a clock divider to specify the actual
frequency to pace the counter/timer operation. Thisis useful when the user wants to pace counter/timer
operations at rates not available with the internal
clock or if uneven intervals are required.

DT9817-R
The DT9817-R is a low-cost, isolated digital I/O modulewith 8 inputs and 8 outputs and channel to channel
isolation up to 500 V. The 8 digital inputs have an input
voltage range of +/- 3 V to +/- 32 V and the 8 digital
outputs are capable of switching up to +/-30 V at 400
mA. It has one 32-bit counter/timer.

The subsystem supports four separate operating modes:• Event counting – This mode is used to count thenumber of falling edges that occur. The user cancount up to 4,294,967,296 events before the counterrolls over to 0 and starts counting again.
• Frequency measurement – This mode allows theuser to determine the frequency of the clock input.
• Edge-to-edge measurement – This mode allows
the user to measure the time interval between a
specified start edge and a specified stop edge. The
user can measure the pulse width, the period, andthe frequency of the signal.
• Rate generation – This mode allows users togenerate square waves with an output frequency
from 4 Hz to 12 MHz. (4 Hz to 2.5 kHz for theDT9817-R).

Up to +/-30V DC@ 400mA (bi-directional)

Up to 500V Channel To Channel Isolation

These modules are ideal for control and monitoring applications. Both the DT9817-H and the DT9817-R can be used to control
solid-state relays and the DT9817-R can be used to control mechanical relays or high-current electric motors.
(508) 946-5100

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Software Options

Ordering Summary

The following software is available for use with a DT9817 series module andis provided on the Data Acquisition Omni CD:• Device Driver –The device driver allows you to use an ECONseries
module with any of the supported software packages or utilities.

• Calibration Utility – This utility allows you to calibrate features of anECONseries module.

• Quick DataAcq application – The Quick DataAcq application provides
a quick way to get up and running. Using this application, verify key
features of the module, display data on the screen, and save data todisk.
• DT-Open Layers® for .NET Class Library – Use this class library if you
want to use Visual C#® or Visual Basic® for .NET to develop application
software using Visual Studio® 2003-2012; the class library complies
with the DT-Open Layers standard.
• DataAcq SDK – Use the DataAcq SDK to use Visual Studio 6.0 andMicrosoft® C or C++ to develop application software using Windows
10/8/7/Vista/XP 32/64-bit; the DataAcq SDK complies with the DTOpen Layers standard.
• DAQ Adaptor for MATLAB – Data Translation’s DAQ Adaptor provides
an interface between the MATLAB® Data Acquisition (DAQ) toolbox
from The MathWorks™ and Data Translation’s DT-Open Layers
architecture.
• LV-Link – Data Translation’s LV-Link is a library of VIs that enable
LabVIEW™ programmers to access the data acquisition features ofDT‑Open Layers compliant USB and PCI devices.

MODULES• DT9817-H• DT9817-R
ACCESSORIES• DIN Rail Kit
FREE SOFTWARE• DAQ Adaptor for MATLAB — Access theanalysis and visualization tools of MATLAB®.
• LV-Link — Access the power of DataTranslation boards through LabVIEW™.

Easy User Connections
All signals are brought out to on-board screw terminals for easy
connections. High quality industrial Phoenix connectors are used tomaintain signal integrity in harsh industrial environments.

DIN-RAIL Mounting Kit for USB
This kit provides a simple, standard method for mounting equipment towalls, cabinets, or machinery. The kit contains everything you need to fit itdirectly on the back of the USB function module housing.

Cross-Series Compatibility
Virtually all Data Translation data acquisition modules are compatible
with the DT-Open Layers® software standard. This means any application
developed with one of Data Translation’s software products can easily be
upgrade to a new Data Translation module with little to no reprogrammingneeded.

(508) 946-5100		
DT9817-Datasheet		3

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June 2017. Rev 6© Measurement Computing Corporation