描述
ABB TU845 3BSE021447R1是一款模块终止单元，作为ABB S800 I/O系统的关键组件，专为工业自动化控制系统设计，提供冗余配置能力和可靠的信号终端，适用于化工、石油天然气、电力等行业的复杂工业环境12。
1.产品概述与核心功能
基本定位：TU845是模块终止单元，专为S800 I/O系统设计，可实现冗余配置，提高系统可靠性和故障容错能力
主要功能：
作为CI840/CI840A通信接口的安装底座，支持AI845、DP840等模块的竖直安装
提供36种不同的机械配置组合，通过四个机械关键点（每个位置两个）为正确模块类型配置终止单元
支持Profibus DP通讯、可选冗余配置、可选HART通讯集成和可选防腐涂层
实现可靠的信号终端，确保系统稳定性和数据完整性
系统集成：与ABB S800 I/O系统无缝集成，通过标准现场总线与母控制器实现通讯，适用于ABB及其它供应商的各种过程控制器13
2.技术规格与物理参数
物理特性：
尺寸：紧凑型设计，适合空间有限的控制柜
重量：2.5 kg（便于安装和维护）
安装方式：竖直DIN导轨安装，便于在工业自动化系统中进行安装和集成
电气特性：
I/O电压：DC 50 V
通道数量：16个通道，支持多种信号类型
工作温度范围：-20°C至+60°C（适应各种工业环境）
存储温度范围：-25°C至+70°C
通信特性：
支持Profibus DP通讯
可选HART通讯集成
通信方式：通过FBP接口连接Profibus DP、CANopen、DeviceNet和Modbus等不同通讯协议13
3.应用场景与行业价值
化工行业：用于炼油、化工等危险环境中，提供本质安全型信号处理，确保生产安全
石油天然气行业：在油气开采和输送系统中，提供高可靠性信号传输，防止生产中断
电力行业：用于发电厂、变电站的自动化控制系统，实现连续稳定运行
特殊优势：
模块化设计：用户可根据实际需求自由组合不同功能的I/O模块，实现高度定制化系统配置
支持热插拔：允许在不中断系统运行的情况下更换模块，提高生产效率
在线重新组态：无需停机即可调整系统配置，减少维护时间
冗余选项：提供故障容错能力，确保关键应用的连续性
The ABB TU845 3BSE021447R1 is a module termination unit,a key component of the ABB S800 I/O system,specifically designed for industrial automation control systems.It provides redundant configuration capabilities and reliable signal termination,suitable for complex industrial environments in industries such as chemical,oil and gas,and power.<sup>12</sup>
1.Product Overview and Core Functions
Basic Positioning:The TU845 is a module termination unit designed specifically for the S800 I/O system,enabling redundant configuration and improving system reliability and fault tolerance.
Main Functions:
*Serves as a mounting base for the CI840/CI840A communication interface,supporting vertical installation of modules such as AI845 and DP840.
*Offers 36 different mechanical configuration combinations,configuring the termination unit for the correct module type through four mechanical key points(two at each location).
*Supports Profibus DP communication,optional redundant configuration,optional HART communication integration,and optional anti-corrosion coating.
*Achieves reliable signal termination,ensuring system stability and data integrity.
*System Integration:Seamlessly integrates with ABB S800 I/O systems,communicating with the master controller via standard fieldbus,suitable for various process controllers from ABB and other suppliers.
2.Technical Specifications and Physical Parameters
*Physical Characteristics:
*Dimensions:Compact design,suitable for control cabinets with limited space.
*Weight:2.5 kg(easy to install and maintain)
Installation method:Vertical DIN rail mounting,easy to install and integrate in industrial automation systems
Electrical characteristics:
I/O voltage:DC 50 V
Number of channels:16 channels,supporting multiple signal types
Operating temperature range:-20°C to+60°C(suitable for various industrial environments)
Storage temperature range:-25°C to+70°C
Communication characteristics:
Supports Profibus DP communication
Optional HART communication integration
Communication methods:Connects to different communication protocols such as Profibus DP,CANopen,DeviceNet,and Modbus via FBP interface.
3.Application Scenarios and Industry Value
Chemical Industry:Provides intrinsically safe signal processing in hazardous environments such as oil refining and chemical processing to ensure production safety.
Oil&Gas Industry:Provides highly reliable signal transmission in oil and gas extraction and transportation systems to prevent production interruptions.
Power Industry:Used in the automation control systems of power plants and substations to achieve continuous and stable operation.
Special Advantages:
Modular Design:Users can freely combine I/O modules with different functions according to actual needs to achieve highly customized system configurations.
Hot-Swapping Support:Allows module replacement without interrupting system operation,improving production efficiency.
Online Reconfiguration:System configuration can be adjusted without downtime,reducing maintenance time.
Redundancy Options:Provides fault tolerance capabilities to ensure the continuity of critical applications.
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