NI PXIe-8840
The PXIe-8840 is an embedded controller for the PXI system launched by National Instruments (NI) of the United States. The following will introduce it from the dimensions of hardware performance, functional interfaces, software support, and application scenarios:
Hardware performance
Processor There are 2.7GHz dual-core or 2.6GHz quad-core processors available for selection. For example, the PXIe-8840 quad-core controller adopts the Intel® Core™ i7 5700EQ 2.6GHz quad-core processor, which has powerful computing capabilities and can meet the requirements of multi-core parallel computing. It is suitable for handling large amounts of data and complex computing tasks.
Memory: Single-channel 1600MHz DDR3L RAM, PC3 12800, standard configuration is 4GB, maximum expandable to 8GB, capable of rapid data storage and reading, supporting efficient processor operation.
Storage: Equipped with a 320GB Serial ATA hard drive. For scenarios with special requirements, the extended temperature 24/7 option can provide an 80GB minimum SATA solid-state drive to adapt to high-load and long-running tasks.
Heat dissipation and stability It adopts an excellent heat dissipation design and can operate normally in an ambient temperature range of 5°C to 50°C, meeting the high-temperature limit of MIL-PRF-28800F Class 3. By expanding the temperature options, the operating temperature range can be further extended to 0°C to 55°C. It meets the low-temperature limit of MIL-PRF-28800F and the high-temperature limit of MIL-PRF-28800F Class 2, and has high stability and reliability.
Functional interface
Network interface: It provides two 10/100/1000BaseT Ethernet ports, facilitating network connection and data transmission with other devices, and enabling functions such as remote control and data sharing.
USB interface: It features four Hi-Speed USB (2.0) ports and two SuperSpeed USB (3.0) ports, supporting high-speed data transmission. It can be connected to various USB devices, such as storage devices, printers, external sensors, etc.
Serial port: Equipped with an RS-232 serial port, it is used to connect devices with serial communication functions, such as serial port instruments, modems, etc., to achieve asynchronous serial data transmission.
GPIB interface: It integrates the GPIB (IEEE 488 Controller) interface, which can be conveniently connected to GPIB instrument equipment to achieve control and data acquisition of traditional GPIB instruments.
Video interface: Equipped with a DisplayPort video interface, supported by an Intel® HD Graphics controller, it can be connected to a monitor to display information such as system operation status and test results.
PXI trigger interface: The front panel is equipped with an SMB trigger interface, which is used to route PXI trigger signals to the backplane trigger bus or receive trigger signals from the backplane trigger bus, achieving precise synchronization and trigger control among various modules in the system.
Software support
Operating system: Usually, LabVIEW Real-Time operating system is pre-installed. Some models also support operating systems such as Windows 10, providing users with a stable and reliable software running environment.
Driver software: The NI-DAQmx driver software is used, which is compatible with software packages such as LabVIEW, LabWindows/CVI, Measurement Studio, etc. It is convenient for users to carry out program development and system integration, which can greatly shorten the development time and improve work efficiency.
Application scenarios
Automated test systems: In automated test systems in fields such as automotive electronics, aerospace, and consumer electronics, PXIe-8840 can serve as the core controller, combined with various PXI measurement modules, to achieve functional testing, performance testing, reliability testing, and other operations on the objects under test.
Data acquisition and monitoring: It is used in fields such as industrial process monitoring, environmental monitoring, and medical equipment data collection. It can collect data from various sensors in real time, process, analyze and store it, providing a basis for subsequent decision-making and control.
Instrument and meter control: Various traditional instruments and meters, such as oscilloscopes, signal generators, and spectrum analyzers, can be controlled through interfaces like GPIB and Ethernet, enabling remote control and automated operation of the instruments, thereby enhancing testing efficiency and accuracy.
Scientific research and experimentation: In the fields of physics, chemistry, biology and other scientific research areas, the PXIe-8840 can be used to build experimental systems, control experimental equipment, collect and analyze experimental data, and assist researchers in conducting scientific research and exploration.

Main products, advantageous supply, and sufficient inventory
ABB PLC system modules and DCS system cards include some discontinued control system module cards. For example :PM645B, 5SHY3545L0014, PM630, 07AC91D, SPHSS13PP845PFEA111-20PFEA112-65 PPD113B01-10-150000, PPD115A102, PPD113-B03-23-111615
GE gas turbine components :IS200 series, DS200 series, etc. (for example :IS200TRPGH1B, DS200PCCAG1A)
Triconex: Redundant fault-tolerant control system, a modern fault-tolerant controller based on triple module redundancy (TMR) structure. For example :3721, 3625, 3008, 4351B, 3805E
Foxboro (Foxboro) : 1 / ASeries system, FBM (field input/output module) sequence control and so on (for example: FBM201CP270CP4BFCP280FCP270)
Bently Nevada :3500 system card. For example :35/15350/2M5 HIMA(Dark Horse):F8650X, F8627X, F8651X, F8652X, F35, etc
Motorola :MVME162, MVME167, MVME1772, MVME177 and other series XOOl:1/0, Vne boards and processors, etc. For example :XVME-653, XVME-674, XVME-976
Rockvell (Allen-Bradley):1756, 1757, 1753, 1394 series. For example :1756-L73XT, 1756-L611757-SRM
Reliance(Ryan): Discontinued spare parts (e.g. 0-60002-6, 5-D4022, S-D4006-D)
Westinghouse Emerson :VE3007CE3008, 5X00105G145X00119G01, 1X00416H011X00416H01
schneider :140 series processors, control cards, power modules, etc. (for example: 140 cpu67160c140cpu67260, 140 cpu65150140cpu43412140nwm110000
Medium description: ABB: Industrial robot DSQC series (series :DSQC202, DSQC545A, DSQC627, DSQC352, DSQC679), Rexroth(Rexroth):1/0 module PLC controller driver, etc. (For example :TVD1.3-15-03, KDV3.1-100-220) Woodward: Controls the governor, etc.
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