PXI-8461  |   高速PXI CAN接口模块  |  用于结合NI-CAN驱动开发应用程序.

　　型号：PXI-8461

　　类别：PXI CAN接口模块

　　支持NI-CAN，2端口，高速PXI CAN接口模块—PXI-8461是一款容错控制器局域网(CAN)接口，用于结合NI-CAN驱动开发应用程序。PXI-8461提供了仅侦听、自接收(回波)以及高级滤波模式。所有PXI-8461均随附NI-CAN驱动软件，该软件提供了一个基于框架的API，可帮助用户快速开发应用程序。所有的NI-CAN接口均满足基于CAN的车载(汽车)网络的物理和电气要求。

　　PXI-8461 接口模块是设备或系统中用于实现不同组件之间连接和通信的关键部分。它涉及多个方面，包括接口类型、接口属性、接口状态管理以及接口模块的定义和功能。

　　接口类型方面，主要包括物理接口和逻辑接口。物理接口直接对应设备上存在的通信接口，而逻辑接口则是在软件层面根据业务逻辑创建的虚拟接口。

　　PXI-8461 接口属性通常从TCP/IP的层次结构进行划分，包括物理层属性(如硬件信息、网口类型等)、链路层属性(如MAC地址、链路层封装格式等)、网络层属性(如接口配置的IPv4/IPv6地址、MTU等)以及其他属性(如接口描述、接口索引等)。

　　PXI-8461 接口状态管理则涉及接口的激活和禁用状态，管理状态的开启是链路状态激活的必要不充分条件。

　　作为接口模块，还需要仔细分析消息的类型，包括优先级、处理时延的要求以及消息并发量。对于关键的同步消息，需要确保处理快速准确;而对于异步的非关键消息，可以起单独的线程处理，以避免对正常业务处理造成影响。

　　Model: PXI-8461

　　Category: PXI CAN Interface module

　　Support for NI-CAN, 2-port, high-speed PXI CAN Interface module - The PXI-8461 is a fault-tolerant controller Local Area Network (CAN) interface for developing applications in conjunction with NI-CAN drivers. The PXI-8461 offers eavesdropping only, self-receiving (echo), and advanced filtering modes. All PXI-8461 ships with NI-CAN driver software, which provides a framework based API to help users develop applications quickly. All NI-CAN interfaces meet the physical and electrical requirements of CAN-based in-vehicle (automotive) networks.

　　The PXI-8461 interface module is a key part of a device or system used to connect and communicate between different components. It involves many aspects, including interface types, interface attributes, interface state management, and interface module definition and function.

　　Interface types include physical interfaces and logical interfaces. Physical interfaces directly correspond to communication interfaces existing on devices, while logical interfaces are virtual interfaces created based on service logic at the software level.

　　PXI-8461 interface attributes are typically divided into TCP/IP hierarchies. These attributes include physical layer attributes (such as hardware information and network port type), link layer attributes (such as MAC address and link layer encapsulation format), network layer attributes (such as IPv4/IPv6 address and MTU configured for the interface), and other attributes (such as interface description and interface index).

　　PXI-8461 Interface status management involves the activation and deactivation of interfaces. Enabling the management status is a necessary but not sufficient condition for link status activation.

　　As an interface module, you also need to carefully analyze the type of message, including the priority, processing delay requirements, and the amount of concurrent messages. For critical synchronous messages, you need to ensure that they are processed quickly and accurately. Asynchronous non-critical messages can be processed by separate threads to avoid affecting normal business processing.