DI-2008 Hardware Manual
Controls, Indicators, and Connections
14
Digital Ports
The DI-2008 contains 7 general-purpose digital ports. Each digital port can be configured as a digital input or used as a
switch to control an external load (up to 30 V and 100 mA). Many of the ports also provide specific functionality in
W
IN
D
AQ
or a third-party program.
D0 Event is for W
IN
D
AQ
Remote Events. This bit inserts an event marker in your data.
D1 Record is for W
IN
D
AQ
Remote Storage. This bit can be programmed to begin recording data.
D2 Rate is for Rate measurements: 10Hz to 50kHz.
D3 Count is for Counter/Timer measurements up to 65,536.
D4 - D6 are general-purpose digital inputs.
Equivalent Digital I/O Circuit:
W
IN
D
AQ
Remote Events (D0 Event)
To use a switch closure or TTL signal to record W
IN
D
AQ
Event Markers, connect signal leads to the appropriate
Remote Control Event terminals on the DI-2008 as shown below.
Dig In
Dx
Dx
10
4.7K
+5
4.7K
Control
3.3V
Signal -
www.dataq.com
USB
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
Download software at run.dataq.com
+15V GnD
60mA max
D0
D1
D2
D3
D4
D5
D6
DI-2008 Voltage, Thermocouple, and Pulse DAQ
Button
LED
0-30V Max
Count
Rate
Record
Event
120V rms max
