PXI-8461 | 高速PXI CAN接口模塊 | 用于結(jié)合NI-CAN驅(qū)動開發(fā)應(yīng)用程序.
型號：PXI-8461
類別：PXI CAN接口模塊
支持NI-CAN，2端口，高速PXI CAN接口模塊—PXI-8461是一款容錯控制器局域網(wǎng)(CAN)接口，用于結(jié)合NI-CAN驅(qū)動開發(fā)應(yīng)用程序。PXI-8461提供了僅偵聽、自接收(回波)以及高級濾波模式。所有PXI-8461均隨附NI-CAN驅(qū)動軟件，該軟件提供了一個基于框架的API，可幫助用戶快速開發(fā)應(yīng)用程序。所有的NI-CAN接口均滿足基于CAN的車載(汽車)網(wǎng)絡(luò)的物理和電氣要求。
PXI-8461 接口模塊是設(shè)備或系統(tǒng)中用于實現(xiàn)不同組件之間連接和通信的關(guān)鍵部分。它涉及多個方面，包括接口類型、接口屬性、接口狀態(tài)管理以及接口模塊的定義和功能。
接口類型方面，主要包括物理接口和邏輯接口。物理接口直接對應(yīng)設(shè)備上存在的通信接口，而邏輯接口則是在軟件層面根據(jù)業(yè)務(wù)邏輯創(chuàng)建的虛擬接口。
PXI-8461 接口屬性通常從TCP/IP的層次結(jié)構(gòu)進(jìn)行劃分，包括物理層屬性(如硬件信息、網(wǎng)口類型等)、鏈路層屬性(如MAC地址、鏈路層封裝格式等)、網(wǎng)絡(luò)層屬性(如接口配置的IPv4/IPv6地址、MTU等)以及其他屬性(如接口描述、接口索引等)。
PXI-8461 接口狀態(tài)管理則涉及接口的激活和禁用狀態(tài)，管理狀態(tài)的開啟是鏈路狀態(tài)激活的必要不充分條件。
作為接口模塊，還需要仔細(xì)分析消息的類型，包括優(yōu)先級、處理時延的要求以及消息并發(fā)量。對于關(guān)鍵的同步消息，需要確保處理快速準(zhǔn)確;而對于異步的非關(guān)鍵消息，可以起單獨的線程處理，以避免對正常業(yè)務(wù)處理造成影響。
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.
