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Chapter 4 Connecting Signals
AT E Series User Manual 4-28 ni.com
Figure 4-10. AO Connections
The external reference signal can be either a DC or an AC signal. The
device multiplies this reference signal by the DAC code (divided by
the full-scale DAC code) to generate the output voltage.
Digital I/O Signal Connections
The digital I/O signals are DIO<0..7> and DGND. DIO<0..7> are the
signals making up the DIO port, and DGND is the ground reference signal
for the DIO port. You can program all lines individually to be inputs or
outputs. The AT-MIO-16DE-10 has 24 additional DIO lines, configured as
three 8-bit ports: PA<0..7>, PB<0..7>, and PC<0..7>. You can configure
each port for both input and output in various combinations, with some
handshaking capabilities.
Caution
Exceeding the maximum input voltage ratings, which are listed in Tables 4-3
through 4-6, can damage the AT E Series device and the PC. NI is not liable for any
damage resulting from such signal connections.
DAC0OUT
EXTREF
AOGND
Channel 0
Channel 1
Analog Output Channels
I/O Connector
DAC1OUT
VOUT 0
VOUT 1
Load
Load
External
Reference
Signal
(Optional)
+
–
+
–
+
–
V
ref