Getting Started With Dio Applications In Software On Usb-6212/6216 Devices - National Instruments Data Acquisition Device NI USB-621x User Manual

LED
+5 V
When using a
USB-6216,
you must connect
D GND and/or AI GND
to the local ground
on your system.
Caution Exceeding the maximum input voltage ratings, which are listed in the
NI USB-621x Specifications, can damage the DAQ device and the computer. NI is not
liable for any damage resulting from such signal connections.
Getting Started with DIO Applications in Software on USB-6212/6216
Devices
For more information about programming digital I/O applications and triggers in
Note
software, refer to the NI-DAQmx Help or the LabVIEW Help in version 8.0 or later.
© National Instruments Corporation
+5 V
TTL Signal
Switch
I/O Connector
Figure 6-4. USB-6212/6216 Digital I/O Connections
You can use the USB-6212/6216 device in the following digital I/O
applications:
• Static digital input
• Static digital output
P1.<0..3>
P0.<0..3>
D GND
USB-6212/6216 Device
6-7
Chapter 6 Digital I/O
Isolation
Barrier
(USB-6216
devices only)
Digital
Isolators
NI USB-621x User Manual