NI-9871串行接口模块 PDF资料
1.产 品 资 料 介 绍：
NI-9871 串行接口模块
产品特点
C 系列串行模块，为 CompactRIO 增加 4 个 RS485/RS422 端口。
串口可由 FPGA 直接访问，每端口独立缓冲，编程简化。
最高波特率 3.68 Mbits/s，支持标准起始位、停止位及握手。
外部供电，端口对地隔离，兼容性与可靠性较高。
工作温度 -40°C 至 70°C，RJ50 前面板连接器。
产品应用领域
CompactRIO 与 RS485/RS422 设备通信。
工业自动化多串口仪表集中接入。
需要 FPGA 灵活控制串口时序的测控场景。
老旧串口设备与 CompactRIO 平台集成。
测试台架多路串行传感器同步读取。
电力监控系统串口电表数据采集。
与变频器、伺服等串口驱动器通讯。
基于 CompactRIO 的分布式数据采集节点。
宽温环境下的现场串行通讯。
既有 CompactRIO 系统的串口扩展或备件替换。
结尾
NI-9871 是 CompactRIO 平台专用的 4 端口 RS485/RS422 串行模块，以 FPGA 直接访问、端口独立缓冲和宽温工作为核心，适合工业测控中灵活接入多路串行设备的场景。
2.英文详情介绍
NI-9871 Serial Interface Module
Product Features
C-series serial module, adding 4 RS485/RS422 ports to CompactRIO.
The serial port can be directly accessed by FPGA, with independent buffering for each port, simplifying programming.
The highest baud rate is 3.68 Mbits/s, supporting standard start and stop bits as well as handshakes.
External power supply, port to ground isolation, high compatibility and reliability.
Working temperature -40 ° C to 70 ° C, RJ50 front panel connector.
Product application areas
CompactRIO communicates with RS485/RS422 devices.
Centralized access of industrial automation multi serial port instruments.
Measurement and control scenarios that require FPGA to flexibly control serial port timing.
Old serial devices integrated with the CompactRIO platform.
Synchronize reading of multiple serial sensors on the test bench.
Serial port meter data acquisition for power monitoring system.
Communicate with serial drivers such as frequency converters and servos.
Distributed data acquisition node based on CompactRIO.
On site serial communication in a wide temperature environment.
Expansion of serial ports or replacement of spare parts for existing CompactRIO systems.
ending
NI-9871 is a 4-port RS485/RS422 serial module dedicated to the CompactRIO platform, with FPGA direct access, port independent buffering, and wide temperature operation as its core, suitable for flexible access to multiple serial devices in industrial measurement and control scenarios.
3.产品图片
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