DI-2108 Hardware Manual
Controls, Indicators, and Connections
14
Digital Ports
The DI-2108 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 25 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.
D6 Ext Trig is for third-party external triggers.
Equivalent Digital I/O Circuit:
Dig In
Dx
Dx
10
4.7K
+5
4.7K
Control
3.3V
