PXI-8512 - NI Interface Module

Description

The Flexible Data Rate, High Speed, NI PXI-8512 CAN Interface Module (Part Number: 780687-01, 780687-02) has 1 or 2 ports, depending on part number. Part number 780687-01 has 1 port, while part number 780687-02 has 2 ports. The NI PXI-8512 comes with interfaces that unite the execution related with the programming of low-level microcontrollers and the energy of Windows and advancement of LabVIEW Real-Time working framework. The DMA motor controlled by patent-pending NI-XNET gadgets lessens the latency of the framework, common point of pain for PC-based CAN, LIN and FlexRay interfaces from milliseconds to microseconds. The database engine and integrated NI-XNET utilities decrease time consuming frame-to-signal translation, while keeping up the most extreme execution on the PXI 8512. Support for industry-standard CAN, LIN, and FlexRay signal database formats, including FIBEX, CANdb (. DBC), LDF, and NI-CAN NCD, simplifies the integration of NI-XNET into incorporated network design workflows. With similarity for up to 192 hardware-accelerated frames, the NI PXI 8512 CAN Interface offload repetitive processing from the host framework leaves more CPU time for executing and performing different tasks. NI RTSI synchronization support empowers NI-XNET interfaces to incorporate and synchronize with other NI items, including data acquisition, PXI modular instrumentation, vision, and motion. Real-time processing of CAN, LIN, and FlexRay signal and frame data is crucial for exact hardware-in-the-loop simulation and fast control prototyping. LabVIEW applications for NI-XNET gadgets work on both Windows and LabVIEW real-time targets with no code changes, which improves assembling and keeping up code maintaining over platforms. This same code can be reused in a wide range of frame factors, including PXI, PCI, NI CompactDAQ, and NI CompactRIO.

Analog input module is a device used to collect and process analog signals, which is usually composed of analog input circuit, analog-to-digital converter (ADC), filter and interface circuit. The analog input circuit is responsible for converting the external analog signal into a voltage or current signal, and then converting the analog signal into a digital signal through an analog-to-digital converter, and finally filtering and enhancing the signal through a filter, and finally output to a computer or other control equipment for processing and analysis. Working principle 1. Analog input circuit: The analog input circuit is a key part of the analog input module, which is mainly responsible for converting the external analog signal into a voltage or current signal. Common analog input circuits include resistance divider circuit, current voltage circuit and so on. The resistance divider circuit realizes the signal conversion through the series parallel combination of resistors, and the current voltage circuit realizes the signal conversion through the product of current and resistance. 2. Analog-to-digital converter (ADC) : The analog-to-digital converter is the core component in the analog input module, which is responsible for converting analog signals to digital signals. The analog-to-digital converter discretizes the input voltage or current into a series of digital values according to its magnitude, and converts the continuous analog signal into a discrete digital signal through a process of sampling and quantization. Common analog-to-digital converters include successive approximation analog-to-digital converters and integral analog-to-digital converters. 3. Filter: The filter is an important part of the analog input module, which is mainly used to filter and enhance the signal. The filter can improve the quality and stability of the signal by removing high-frequency noise and interference signals, thus improving the accuracy and reliability of subsequent processing. 4. Interface circuit: The interface circuit is the connection bridge between the analog input module and the computer or other control equipment, which is responsible for converting the digital signal into a form that the computer or other control equipment can recognize and process. Interface circuit usually adopts serial communication interface or parallel communication interface, and realizes data exchange and communication with computer or other control equipment through data line and control line.

Application field Analog input modules have a wide range of applications in industrial automation, such as: 1. Industrial production process monitoring: The analog input module can be used to monitor and collect analog signals such as temperature, pressure and flow in the production process, and feed back to the computer or other control equipment in real time for monitoring and regulation of the production process. 2. Environmental monitoring system: The analog input module can be used for the collection and processing of parameters such as temperature, humidity and gas concentration in the environmental monitoring system, so as to grasp the changes and anomalies of the environment in time. 3. Power system monitoring: The analog input module can be used for the acquisition and monitoring of voltage, current, power and other parameters in the power system in order to understand the operating status and load of the power system in real time. 4. Instrument testing: Analog input module can be used for analog signal acquisition and processing in instrument testing in order to evaluate and verify the performance and accuracy of instruments.

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