National Instruments NI 783xR Manuel D’Utilisation
Chapter 2
Hardware Overview of the NI 783xR
2-2
ni.com
Figure 2-2. NI 7831R/7833R Block Diagram
NI 7830R Overview
The NI 7830R has four independent, 16-bit AI channels; four independent,
16-bit AO channels; and 56 bidirectional DIO lines that you can configure
individually for input or output.
16-bit AO channels; and 56 bidirectional DIO lines that you can configure
individually for input or output.
NI 7831R/7833R Overview
The NI 7831R and NI 7833R each have eight independent, 16 bit AI
channels; eight independent, 16-bit AO channels; and 96 bidirectional DIO
lines that you can configure individually for input or output.
channels; eight independent, 16-bit AO channels; and 96 bidirectional DIO
lines that you can configure individually for input or output.
Analog Input
You can sample NI 783xR AI channels simultaneously or at different rates.
The input mode is software configurable, and the input range is fixed at
The input mode is software configurable, and the input range is fixed at
+
AI+
AI–
PCI/PXI/CompactPCI Bus
Input Mux
Instrumentation
Amplifier
Amplifier
Input Mode Mux
AISENSE
AIGND
16-Bit
DAC
x8 Channels
2
x8 Channels
Configuration
Flash
Memory
User-
Configurable
FPGA on RIO
Devices
Bus
Interface
Connector 1 (DIO)
Connector 2 (DIO)
Data/Address/
Control
Digital I/O (16)
Digital I/O (40)
Digital I/O (40)
Calibration
DACs
Configuration
Control
Connector 0 (MIO)
Calibration
DACs
Voltage
Reference
–
16-Bit
ADC
Temperature
Sensor
Calibration
Mux
RTSI/PXI Triggers
RTSI Bus
Address/Data
Control
PXI Local Bus (NI PXI-783
xR only)