描述
ABB NDBU-85C是一款用于工业自动化领域的分支单元模块，以下是其详细产品信息：
基本信息
产品类型：工业分支单元
重量：约0.75kg
尺寸：250mm x 100mm x 100mm
产地：芬兰或瑞典
技术参数
供电电源：通常支持宽电压范围，如24V DC，也有AC 220V、50/60Hz的型号。
使用环境温度：-20℃至+70℃。
接口方式：采用星形连接分支单元，有9个输出连接，8个连接的额定速率为5Mb，1个连接的额定速率为10Mb。
通信接口：集成PROFIBUS DP或Modbus RTU通信接口，部分型号还支持RS 485接口。
通道数量：提供8+1通道信号接入能力。
产品特点
高可靠性设计：采用工业级元器件，符合IEC 61131-2标准，支持在宽温、高湿及强电磁干扰环境下稳定运行。模块化设计支持热插拔，便于快速维护与扩展。
灵活配置与扩展：支持通过配置软件自定义通道功能，如输入/输出类型、信号范围等。提供冗余电源输入接口，支持双电源冗余配置。
诊断与维护便捷：配备LED指示灯或本地显示屏，实时显示通道状态、通信故障及电源异常信息。支持远程诊断功能，可通过上位机软件获取模块运行日志、故障记录及维护建议。
应用领域
主要用于实现现场信号的集中分配与传输，支持多通道信号接入与扩展，可适配ABB Symphony、800xA等DCS系统，适用于电力、石化、冶金等行业的信号采集与控制网络。
The ABB NDBU-85C is a branch unit module for industrial automation.Below is its detailed product information:
Basic Information
Product Type:Industrial Branch Unit
Weight:Approx.0.75kg
Dimensions:250mm x 100mm x 100mm
Origin:Finland or Sweden
Technical Specifications
Power Supply:Typically supports a wide voltage range,such as 24V DC;AC 220V,50/60Hz models are also available.
Ambient Temperature:-20℃to+70℃.
Interface:Star-connected branch unit with 9 output connections;8 connections are rated at 5Mb,and 1 connection is rated at 10Mb.
Communication Interface:Integrated PROFIBUS DP or Modbus RTU communication interface;some models also support RS 485.
Number of Channels:Provides 8+1 channel signal input capability.
Product Features
High Reliability Design:Employs industrial-grade components,conforms to IEC 61131-2 standards,and supports stable operation in environments with wide temperature ranges,high humidity,and strong electromagnetic interference.Modular design supports hot-swapping for easy and rapid maintenance and expansion.
Flexible Configuration and Expansion:Supports customizable channel functions via configuration software,such as input/output types and signal ranges.Provides redundant power input interfaces,supporting dual power supply redundancy configurations.
Convenient Diagnostics and Maintenance:Equipped with LED indicators or a local display screen to show real-time channel status,communication faults,and power anomalies.Supports remote diagnostics,allowing access to module operation logs,fault records,and maintenance suggestions via host computer software.
Application Areas:Primarily used for centralized distribution and transmission of field signals,supporting multi-channel signal access and expansion.Compatible with ABB Symphony,800xA,and other DCS systems,suitable for signal acquisition and control networks in industries such as power,petrochemicals,and metallurgy.
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