Chapter 6
Digital I/O
6-4
ni.com
Getting Started with DIO Applications in Software on
USB-6210/6211/6215/6218 Devices
Yo
u
can
u
se the USB-6210/6211/6215/6218 device in the following digital
I/O applications:
•
Static digital inp
u
t
•
Static digital o
u
tp
u
t
Note
For more information abo
u
t programming digital I/O applications and triggers in
software, refer to the
NI-DAQmx Help
or the
LabVIEW Help
in version 8.0 or later.
Digital I/O on USB-6212/6216 Devices
USB-6212/6216 devices contain:
•
Up to 16 DIO signals (P0.<0..15>). Each signal can be individ
u
ally
config
u
red as either:
–
Static digital inp
u
t
–
Static digital o
u
tp
u
t
•
16 PFI/DIO signals (PFI <0..7>/P1.<0..7> and
PFI <8..15>/P2.<0..7>).
Each signal can be individ
u
ally config
u
red as either:
–
Static digital inp
u
t
–
Static digital o
u
tp
u
t
–
PFI inp
u
t
–
PFI o
u
tp
u
t
Each pin is called PFI
x
when
u
sed as a PFI; each pin is named P1.
x
or P2.
x
when
u
sed as a digital inp
u
t or o
u
tp
u
t.
Fig
u
re 6-3 shows the circ
u
itry of one DIO line. Each DIO line is similar.
The voltage inp
u
t and o
u
tp
u
t levels and the c
u
rrent drive levels of the DIO
lines are listed in the
NI USB-621x Specifications
.
