NI PXI-7842R

The NI PXI-7842R multifunction R Series intelligent data acquisition (DAQ) module features a user-programmable FPGA chip for onboard processing and flexible I/O operation. You configure all analog and digital functionality using NI LabVIEW graphical block diagrams and the LabVIEW FPGA Module. Your block diagram executes in the hardware, giving you direct, immediate control over all I/O signals to deliver high-performance capabilities such as:

• Complete control over the synchronization and timing of all signals and operations
• Custom onboard decision making that executes with hardware-timed speed and reliability
• Digital lines individually configurable as inputs, outputs, counter/timers, pulse-width modulation, flexible encoder inputs, or specialized communication protocols

Multifunction NI R Series intelligent DAQ devices feature a dedicated analog-to-digital converter (ADC) per channel for independent timing and triggering. This offers specialized functionality such as multirate sampling and individual channel triggering, which are outside the capabilities of typical data acquisition hardware. Common examples include custom discrete and analog control, sensor simulation, rapid prototyping, hardware-in-the-loop (HIL) test, digital protocol emulation, and other applications that require precise timing and control.

Required Software
This product requires the NI LabVIEW FPGA Module 8.5.1 or later and NI-RIO driver software 2.4 or later.

New Virtex-5 FPGA
The new Virtex-5 field-programmable gate array (FPGA) architecture is optimized to execute faster and more efficiently using single-cycle timed loops in LabVIEW FPGA. This means you can optimize more LabVIEW FPGA code to fit within Virtex-5 FPGAs and execute more operations per clock cycle.

Recommended Accessories
The NI SHC68-68-RMIO cable is designed and shielded specifically for the multifunction I/O connector (connector 0) of multifunction intelligent DAQ devices. The SHC68-68-RDIO cable is designed and shielded specifically for the digital I/O connectors (connectors 1 and 2) on intelligent DAQ devices to reduce crosstalk for improved signal integrity and noise rejection.

Additional Product Information

Related Information

• NI LabVIEW FPGA
• Three-Minute Introduction to Intelligent DAQ
• Case Studies Using FPGA Technology
• Advanced Data Acquisition Techniques with Intelligent DAQ
• Download Custom DAQ Personalities
• Learn How FPGAs Work “Under the Hood”
• LabVIEW FPGA IPNet - Browse Application Examples and IP Cores
• R Series Intelligent DAQ Frequently Asked Questions (FAQ)
• FPGA-Based Control Frequently Asked Questions (FAQ)
• Intelligent DAQ - Webcast on Demand

General
Form Factor	PXI
OS Support	Windows, Real-Time
Measurement Type	Filters, Frequency, LVDT, Quadrature encoder, RVDT, Voltage
DAQ Product Family	R Series
LabVIEW RT Support	Yes
Analog Input
Number of Channels	8 SE/8 DI
Sample Rate	200 kS/s/ch
Resolution	16 bits
Simultaneous Sampling	Yes
Maximum Voltage Range	-10..10 V
Range Accuracy	3.97 mV
Range Sensitivity	0.305 mV
Minimum Voltage Range	-10..10 V
Range Accuracy	3.97 mV
Range Sensitivity	0.305 mV
Number of Ranges	1
On-Board Memory	192 kB
Signal Conditioning	Deglitch filter, Low-pass filtering
Analog Output
Number of Channels	8
Update Rate	1 MS/s
Resolution	16 bits
Maximum Voltage Range	-10..10 V
Range Accuracy	5.88 mV
Range Sensitivity	0.305 mV
Minimum Voltage Range	-10..10 V
Range Accuracy	5.88 mV
Range Sensitivity	0.305 mV
Current Drive (Channel/Total)	2.5 mA/20 mA
Digital I/O
Number of Channels	96 DIO
Timing	Hardware
Maximum Clock Rate	40 MHz
Logic Levels	TTL, LVTTL, 3.3 V, 5 V
Maximum Input Range	0..5 V
Maximum Output Range	0..3.3 V
Input Current Flow	Sinking, Sourcing
Programmable Input Filters	Yes
Output Current Flow	Sinking, Sourcing
Current Drive (Channel/Total)	4 mA/384 mA
Watchdog Timer	Yes
Supports Programmable Power-Up States?	Yes
Supports Handshaking I/O?	Yes
Supports Pattern I/O?	Yes
Counter/Timers
Number of Counter/Timers	96
Resolution	64 bits
Maximum Source Frequency	40 MHz
Minimum Input Pulse Width	12.5 ns
Logic Levels	3.3 V, 5 V, LVTTL, TTL
Maximum Range	0..5 V
Timebase Stability	100 ppm
GPS Synchronization	No
Pulse Generation	Yes
Buffered Operations	Yes
Debouncing/Glitch Removal	Yes
Number of DMA Channels	3
Timing/Triggering/Synchronization
Synchronization Bus (RTSI)	Yes
Triggering	Analog, Digital
Physical Specifications
Length	16 cm
Width	10 cm
I/O Connector	68-pin VHDCI female

Factory Installation

Reduce your setup time with National Instruments installation services and get a system you can use out of the box. Factory installation services include:

• Installation of all individual hardware and software components as well as full testing to eliminate conflicts
• Custom documentation plus a custom restore and startup utility
• 2-year warranty and calibration coverage

This service is only available for PXI, CompactRIO, and Compact FieldPoint systems.

Extended Warranties

National Instruments designs and manufactures all products to minimize failures, but we know unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase covering any repair costs for up to three years.

• Significant cost savings compared to individual repair incidents
• Fault location, diagnostics, and repair by NI any time the system product fails
• All parts and labor costs covered as well as any adjustments needed to bring the hardware back to manufacturing specifications

Calibration

NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. We provide manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many of our measurement products.

Training

NI training is the fastest, most certain route to productivity with NI tools and successful application development.

• Learn more about NI training benefits and guarantees
• View course information and schedules
• Register now

Repair Services

• You can return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to bring the hardware back to manufacturing specifications.
• Contact us to obtain a Return Material Authorization (RMA) form and shipping instructions
• View your RMA support request status online
• Register your product

Technical Support

www.ni.com/support

Select your application need to see compatible software options for the NI PXI-7842R.

Application Need

Data acquisition, analysis, and user interface customization	Data logging
Automated test and test sequencing	Simulation and control design
Industrial monitoring and control	Embedded design, prototyping, and deployment