R Series Intelligent DAQ –
Data Acquisition and Control with Onboard Processing
NI 781xR, NI 783xR, NI PXI-784xR, NI PXI-785xR
NEW!
• Onboard FPGA chip, programmable
with the LabVIEW FPGA Module
• User-defined triggering, timing, and
decision making in hardware with
25 ns resolution
• Up to 8 analog inputs, independent
sampling rates up to 750 kHz,
16-bit resolution
• Up to 8 analog outputs, independent
update rates up to 1 MHz,
16-bit resolution
• Up to 160 digital lines configurable as
inputs, outputs, counters, or custom
logic at rates up to 40 MHz
• Direct memory access (DMA) channels
for high-speed data streaming
• Implement custom control logic,
inline signal processing, and digital
communication protocols
Operating Systems
• Windows XP/2000
• LabVIEW Real-Time
Recommended Software
• LabVIEW
• LabVIEW FPGA Module
• LabVIEW code compiler for FPGAs
• Emulated debugging mode
• LabVIEW Real-Time Module
Driver Software (included)
• NI-RIO
Calibration Certificate Available
Product
Multifunction R Series
NI 7851R
NI 7852R
NI 7853R
NI 7854R
NI 7841R
NI 7842R
NI 7830R
NI 7831R
NI 7833R
Digital R Series
NI 7811R
NI 7813R
Bus/Form Factor
PXI
PXI
PXI
PXI
PXI
PXI
PCI, PXI
PCI, PXI
PCI, PXI
PCI, PXI
PCI, PXI
FPGA
Virtex-5 LX30
Virtex-5 LX50
Virtex-5 LX85
Virtex-5 LX110
Virtex-5 LX30
Virtex-5 LX50
Virtex-II 1M gates
Virtex-II 1M gates
Virtex-II 3M gates
Virtex-II 1M gates
Virtex-II 3M gates
Analog Inputs
(16-Bit)
8
8
8
8
8
8
4
8
8
–
–
Max Sampling Rate
per Channel (kS/s)
750
750
750
750
200
200
200
200
200
–
–
Analog Outputs
(16-Bit)
8
8
8
8
8
8
4
8
8
–
–
Max Update Rate
per Channel (MS/s)
1
1
1
1
1
1
1
1
1
–
–
Digital I/O
96
96
96
96
96
96
56
96
96
160
160
Table 1. R Series Selection Guide
Overview
Intelligent DAQ is multifunction data acquisition that features user-
defined onboard processing as well as complete flexibility of I/O
timing and triggering. You can configure all device functionality by
creating NI LabVIEW block diagrams with the LabVIEW FPGA Module.
Your block diagram executes in hardware, giving you direct, immediate
control of all I/O signals on the PXI or PCI device. With R Series and
LabVIEW FPGA, you can configure user-defined hardware for a wide
variety of applications requiring precise timing and control such as:
• Data acquisition with flexible triggering and onboard processing
• High-speed analog and discrete control loops
• Pulse-width modulation (PWM) and encoder interfacing
• User-defined digital communication protocols
• Custom counters with up to 64-bit resolution
• Hardware-timed decision making at 40 MHz
Key Features
Through programming in LabVIEW FPGA, you can control each of the
I/O signal lines independently or synchronize a line with other channels.
You can configure the digital I/O lines as custom counter/timers, PWM
channels, or communication buses for user-defined protocols. All
multifunction R Series devices have dedicated analog-to-digital
converters/digital-to-analog converters on every analog I/O channel.
This offers specialized functionality such as multirate sampling and
individual channel triggering, which are beyond the capabilities of
typical data acquisition hardware. You can sample every analog input
channel on an R Series device simultaneously at rates up to 750 kHz,
and you can program every analog output on an R Series device to
update simultaneously at rates up to 1 MHz. You can also store your
compiled LabVIEW FPGA application in the onboard flash memory of
any R Series device and configure it for automatic loading and/or
execution at power up.
R Series Intelligent DAQ –
Data Acquisition and Control with Onboard Processing
New Virtex-5 FPGAs
The new NI PXI-784xR and PXI-785xR modules use new Virtex-5 field-programmable gate arrays (FPGAs) with improved optimization capabilities
that provide faster code execution and increased code capacity. These Virtex-5 FPGAs feature a new six-input lookup table (LUT) architecture
for substantially improved resource utilization as well as DSP48 slices that make it possible for you to implement more complex digital signal
processing at faster rates. Previous-generation Virtex-II FPGAs use four-input LUTs for up to 16 combinations of digital logic values. The new
Virtex-5 FPGAs use six-input LUTs for up to 64 combinations, increasing the amount of logic that you can implement per slice. In addition, the slices
themselves are placed in closer proximity to each other to reduce the propagation delay of electrons and increase overall execution rates. The
single-cycle timed loop structure in LabVIEW FPGA takes full advantage of six-input LUTs for substantially improved resource utilization. This means
you can optimize more LabVIEW FPGA code to fit within Virtex-5 FPGAs and perform more operations per clock cycle.
Figure 1. General logic benchmarks show that Virtex-5 FPGAs offer larger sizes when
compared to Virtex-II FPGAs.
Figure 2. Execution speed benchmarks show that Virtex-5 FPGAs feature faster processing
capabilities when compared to Virtex-II FPGAs.
For more information on LabVIEW FPGA benchmarks for Virtex-5 FPGAs, visit
ni.com/info
and enter
lvfpgabenchmarks.
BUY ONLINE
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ni.com
or
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2
R Series Intelligent DAQ –
Data Acquisition and Control with Onboard Processing
Required Software for R Series Intelligent DAQ
• NI 781xR and 783xR devices require the LabVIEW FPGA Module 7.1
or later and NI-RIO 1.3 or later driver software.
• NI 784xR and 785xR devices require the LabVIEW FPGA Module 8.5.1
or later and NI-RIO 2.4 or later.
• NI 7853R and 7854R devices require the LabVIEW FPGA Module 8.6
or later and NI-RIO 3.0 or later.
Recommended Accessories
High Performance
SHC68-68-RMIO
– High-performance shielded 68-conductor cable
terminated with a VHDCI 68-pin male connector at one end and a
68-pin female 0.050 D-type connector at the other end that has been
specifically designed for the multifunction I/O connector on R Series
intelligent DAQ devices.
1 m .....................................................................189588-01
2 m .....................................................................189588-02
SHC68-68-RDIO
– High-performance shielded 68-conductor cable
terminated with a VHDCI 68-pin male connector at one end and a
68-pin female 0.050 D-type connector at the other end that has been
specifically designed for the digital I/O connector on R Series intelligent
DAQ devices.
1 m .....................................................................191667-01
SCB-68
– Shielded I/O connector block for rugged, very low-noise signal
termination for connecting to 68-pin devices. The SCB-68 also includes
two general-purpose breadboard areas.
Dimensions – 19.5 by 15.2 by 4.5 cm (7.7 by 6.0 by 1.8 in.)
SCB-68 .................................................................776844-01
Low-Cost Signal Conditioning and Channel Expansion
The NI cRIO-9151 R Series expansion chassis connects directly to any
digital connector on R Series devices and houses up to four C Series I/O
modules for industrial signal conditioning, I/O channel expansion, and
direct sensor connectivity.
Ordering Information
PCI
NI PCI-7811R................................................................779363-01
NI PCI-7813R................................................................779370-01
NI PCI-7830R................................................................779361-01
NI PCI-7831R................................................................778797-01
NI PCI-7833R................................................................779359-01
PXI
NI PXI-7811R................................................................778800-01
NI PXI-7813R................................................................779362-01
NI PXI-7830R................................................................779364-01
NI PXI-7831R................................................................778668-01
NI PXI-7833R................................................................779360-01
NI PXI-7841R................................................................780337-01
NI PXI-7842R................................................................780338-01
NI PXI-7851R................................................................780339-01
NI PXI-7852R................................................................780340-01
NI PXI-7853R................................................................780341-01
NI PXI-7854R................................................................780342-01
Includes NI-RIO driver software.
Low Cost
SH68-C68-S
– General-purpose shielded cable that connects any type
of R Series connector to 68-pin connector blocks.
0.5 m...................................................................186381-0R5
1 m .....................................................................186381-01
2 m .....................................................................186381-02
Custom Cabling
SHC68-NT-S
– Shielded 68-conductor cable terminated with a 68-pin
male VHDCI connector at one end and unterminated bare wires at the
other. Use this cable, ideal for OEM applications, to create custom
cabling solutions for R Series devices.
2 m .....................................................................189041-02
NSC68-262650
– Shielded cable terminated with a VHDCI 68-pin male
connector at one end and two 26-pin ribbon connectors and one 50-pin
ribbon connector on the other; designed to connect the R Series RMIO
connector to standard ribbon cable accessories.
1 m .....................................................................189151-01
NSC68-5050
– Shielded cable terminated with a VHDCI 68-pin male
connector at one end and two 50-pin ribbon connectors on the other;
designed to connect R Series RDIO connectors to standard ribbon
cable accessories.
1 m .....................................................................189152-01
BUY NOW!
For complete product specifications, pricing, and accessory
information, call 800 813 3693 (U.S.) or go to
ni.com/rseries.
BUY ONLINE
at
ni.com
or
CALL 800 813 3693 (U.S.)
3
R Series Intelligent DAQ –
Data Acquisition and Control with Onboard Processing
Specifications
Analog Input (NI 783xR/784xR/785xR Only)
Input Characteristics
Number of channels
NI 7830R ......................................... 4
NI 7831R/7833R/784xR/785xR ...... 8
Input modes ........................................ DIFF, RSE, NRSE
(software-selectable; selection
applies to all channels)
Type of ADC ........................................ Successive approximation
Resolution ........................................... 16 bits, 1 in 65,536
Conversion time
NI 783xR/NI 784xR ......................... 4 µs
NI 785xR ......................................... 1 µs
Maximum sampling rate
NI 783xR/NI 784xR ......................... 200 kS/s (per channel)
NI 785xR ......................................... 750 kS/s (per channel)
Input impedance
Powered on..................................... 10 GΩ in parallel with 100 pF
Powered off/overload..................... 4.0 kΩ min
Input signal range ............................... ±10 V
Input bias current
NI 783xR ......................................... ±2 nA
NI 784xR/785xR.............................. ±5 nA
Input offset current
NI 783xR ......................................... ±1 nA
NI 784xR/785xR.............................. ±5 nA
Input coupling ..................................... DC
Maximum working voltage
(signal + common mode) ............ Inputs should remain
within ±12 V of ground
Overvoltage protection
Powered on ................................ ±42 V
Powered off ................................ ±35 V
Data transfers ..................................... DMA, interrupts, programmed I/O
Accuracy Information – NI 784xR/785xR
Relative Accuracy
Absolute
% of Reading
Accuracy Resolution (µV)
Temp at Full
Positive Negative
Offset Single
Drift Scale Single
24
Full
Full
Scale Hours 1 Year (µV) Point Averaged (%/°C) (±mV) Point Averaged
Scale
Nominal
Range (V)
10.0
-10.0 0.0186 0.0228 1,591 1,029
91.6
0.0005
3.97
1,205
121
Note:
Accuracies are valid for measurements following an internal calibration. Averaged numbers
assume dithering and averaging of 100 single-channel readings. Measurement accuracies are listed for
operational temperatures within ±1 °C of internal calibration temperature and ±10 °C of external or
factory-calibration temperature.
Absolute Accuracy
Noise +
Quantization
DC Transfer Characteristics
INL
NI 783xR .........................................
NI 784xR/785xR..............................
DNL
NI 783xR .........................................
NI 784xR/785xR..............................
No missing codes
NI 783xR .........................................
NI 784xR/785xR..............................
CMRR, DC to 60 Hz.............................
±3 LSB typ, ±6 LSB max
±1 LSB typ, ±3 LSB max
-1.0 to +2.0 LSB max
±0.4 LSB typ, ±0.9 LSB max
16 bits typ, 15 bits min
16 bits guaranteed
-86 dB
Settling Time
Device
NI 783xR
Step Size
±20.0 V
±2.0 V
±0.2 V
±20.0 V
±2.0 V
±0.2 V
16 LSB
7.5 µs
2.7 µs
1.7 µs
2.1 µs
1.3 µs
0.8 µs
Accuracy
4 LSB
10.3 µs
4.1 µs
2.9 µs
4.2 µs
1.6 µs
1.1 µs
2 LSB
40 µs
5.1 µs
3.6 µs
8 µs
1.8 µs
1.2 µs
NI 784xR/
785xR
Crosstalk.............................................. -80 dB, DC to 100 kHz
Dynamic Characteristics
Bandwidth
NI 783xR
Small signal (-3 dB) ....................
Large signal (1% THD) ...............
NI 784xR/785xR
Small signal (-3 dB) ....................
Large signal (1% THD) ...............
650 kHz
55 kHz
1 MHz
500 kHz
Accuracy Information – NI 783xR
Relative Accuracy
Absolute
% of Reading
Accuracy Resolution (µV)
Temp at Full
Positive Negative
Offset Single
Drift Scale Single
24
Full
Full
(µV) Point Averaged (%/°C) (±mV) Point Averaged
Scale
Scale Hours 1 Year
Nominal
Range (V)
10.0
-10.0 0.0496 0.0507 2,542 1779
165
0.0005
7.78
2,170
217
Note:
Accuracies are valid for measurements following an internal calibration. Averaged numbers
assume dithering and averaging of 100 single-channel readings. Measurement accuracies are listed for
operational temperatures within ±1 °C of internal calibration temperature and ±10 °C of external or
factory-calibration temperature.
Absolute Accuracy
Noise +
Quantization
Analog Output (NI 783xR/784xR/785xR Only)
Output Characteristics
Number of channels
NI 7830R .........................................
NI 7831R/7833R/784xR/785xR ......
Output type .........................................
Resolution ...........................................
Update time ........................................
Maximum update rate ........................
Type of DAC ........................................
Data transfers .....................................
4
8
Single-ended, voltage output
16 bits, 1 in 65,536
1.0 µs
1 MS/s
Enhanced R-2R
DMA, interrupts,
programmed I/O
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R Series Intelligent DAQ –
Data Acquisition and Control with Onboard Processing
Voltage Output
Range ..................................................
Output coupling...................................
Output impedance
NI 783xR .........................................
NI 784xR/785xR..............................
Current drive .......................................
Protection ............................................
Power-on state....................................
±10 V
DC
1.25
Ω
0.5
Ω
±2.5 mA
Short-circuit to ground
User configurable
Protection
Input
NI 781xR/783xR ......................... -0.5 to 7.0 V, single line
NI 784xR/785xR ......................... -20.0 to 20.0 V, single line
Output ............................................. Short-circuit (up to eight lines
may be shorted at a time)
Minimum pulse width
Input................................................ 25 ns
Output ............................................. 12.5 ns
Minimum sampling period.................. 5 ns
Accuracy Information
Nominal Range (V)
Positive
Negative
Full Scale Full Scale 24 Hours
10.0
-10.0
0.0335
Absolute Accuracy
% of Reading
1 Year
0.0351
Absolute
Temp Drift Accuracy at Full
Offset (µv)
(%/°C)
Scale (mV)
2,366
0.0005
5.88
Reconfigurable FPGA
NI 7811R/7830R/7831R
FPGA type............................................
Number of flip-flops............................
Number of 4-input LUTs......................
Number of 18x18 multipliers ..............
Embedded block RAM.........................
Virtex-II 1000
10,240
10,240
40
720 kb
Virtex-II 3000
28,672
28,672
96
1,728 kb
Virtex-5 LX30
19,200
19,200
32
1,152 kb
Virtex-5 LX50
28,800
28,800
48
1,728 kb
Virtex-5 LX85
51,840
51,840
48
3,456 kb
Virtex-5 LX110
69,120
69,120
64
4,608 kb
Note:
Accuracies are valid for analog output following an internal calibration. Analog output accuracies are
listed for operation temperatures within ±1 °C of internal calibration temperature and ±10 °C of external or
factory calibration temperature. Temperature drift applies only if ambient is greater than ±10 °C of previous
external calibration.
DC Transfer Characteristics
INL .................................................... ±0.5 LSB typ, ±4.0 LSB max
DNL .................................................... ±0.5 LSB typ, ±1 LSB max
Monotonicity ....................................... 16 bits, guaranteed
NI 7813R/7833R
FPGA type............................................
Number of flip-flops............................
Number of 4-input LUTs......................
Number of 18x18 multipliers ..............
Embedded block RAM.........................
Settling Time
Step Size
±20.0 V
±2.0 V
±0.2 V
16 LSB
6.0 µs
2.2 µs
1.5 µs
Accuracy
4 LSB
6.2 µs
2.9 µs
2.6 µs
2 LSB
7.2 µs
3.8 µs
3.6 µs
NI 7841R/7851R
FPGA type............................................
Number of flip-flops............................
Number of 6-input LUTs......................
Number of DSP48
slices (25x18 multipliers)................
Embedded block RAM.........................
Dynamic Characteristics
Slew rate............................................. 10 V/µs
Noise ................................................... 150 µV
rms
, DC to 1 MHz
Glitch energy at midscale transition..... ±200 mV for 3 µs
NI 7842R/7852R
FPGA type............................................
Number of flip-flops............................
Number of 6-input LUTs......................
Number of DSP48
slices (25x18 multipliers)................
Embedded block RAM.........................
Digital I/O
Number of channels
NI 7811R/7813R .............................
NI 7830R .........................................
NI 7831R/7833R/784xR/785xR .....
Digital logic levels ..............................
Level
Input low voltage (V
IL
)
Input high voltage (V
IH
)
Output low voltage (V
OL
),
where I
OUT
= -4 mA
Output high voltage (V
OH
),
where I
OUT
= 4 mA
160
56
96
3.3 V TTL, 5 V TTL Compatible
Min (V)
0.0 V
2.0 V
–
2.4 V
Max (V)
0.8 V
5.5 V
0.4 V
3.3 V
NI 7853R
FPGA type............................................
Number of flip-flops............................
Number of 6-input LUTs......................
Number of DSP48
slices (25x18 multipliers)................
Embedded block RAM.........................
Output current
Source.............................................
Sink .................................................
Input leakage current..........................
Power-on state....................................
Data transfers .....................................
4.0 mA
4.0 mA
±10 µA
Programmable, by line
DMA, interrupts,
programmed I/O
NI 7854R
FPGA type............................................
Number of flip-flops............................
Number of 6-input LUTs......................
Number of DSP48
slices (25x18 multipliers)................
Embedded block RAM.........................
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