描述
ABB TU844 3BSE021445R1是一款冗余模块终端单元(MTU)，作为ABB S800 I/O系统的核心组件，专为工业自动化控制系统设计，提供三重模块化冗余(TMR)安全性和关键控制功能，适用于电力、石化、化工等行业的高可靠性应用场景12。
1.产品概述与核心功能
基本定位：TU844是冗余模块终端单元(MTU)，专为S800 I/O系统设计，实现三重模块化冗余(TMR)结构，提供最高级别的容错控制能力
主要功能：
作为冗余TB840/TB840A底座，支持AI845、DP840等模块的竖直安装，适用于需要高可靠性的关键控制应用
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MTU
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，满足不同工业环境需求
实现可靠的信号终端，确保系统稳定性和数据完整性，特别适合安全关键型应用
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12
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
额定电流：2 A
通道数量：8个I/O通道和2+2过程电压连接
每个通道配置：两个I/O连接和一个ZP连接，通过TY801分流棒选择电压/电流输入
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23
The ABB TU844 3BSE021445R1 is a redundant modular terminal unit(MTU).As a core component of the ABB S800 I/O system,it is specifically designed for industrial automation control systems,providing triple modular redundancy(TMR)safety and critical control functions.It is suitable for high-reliability applications in industries such as power,petrochemicals,and chemicals.<sup>12</sup>
1.Product Overview and Core Functions
Basic Positioning:The TU844 is a Redundant Modular Terminal Unit(MTU)designed specifically for S800 I/O systems,implementing a Triple Modular Redundancy(TMR)structure to provide the highest level of fault-tolerant control capabilities.
Main Functions:
*As a redundant TB840/TB840A base,it supports vertical mounting of modules such as AI845 and DP840,suitable for critical control applications requiring high reliability.
*Offers 36 different mechanical configuration combinations,configuring the MTU for the correct module type through four mechanical key points(two at each location).
*Supports Profibus DP communication,optional redundancy configuration,optional HART communication integration,and optional anti-corrosion coating to meet the needs of different industrial environments.
*Provides reliable signal termination,ensuring system stability and data integrity,particularly suitable for safety-critical applications.
*System Integration:Seamlessly integrates with ABB S800 I/O systems,communicating with the master controller via a 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,facilitating installation and integration in industrial automation systems
Electrical characteristics:
I/O voltage:DC 50 V
Rated current:2 A
Number of channels:8 I/O channels and 2+2 process voltage connections
Configuration per channel:Two I/O connections and one ZP connection,voltage/current input selected via TY801 shunt bar
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.
ABB Model: GBU72 3BHE055094R0002 Model: 3BHE055094R0002 GBU72 Model: GBU72 Model: 3BHE055094R0002 Model: 3BHE031197R0001 Model: 3BHB030310R0001 Model: 73BHE055094R0002 GBU72 Model: 73BHE055094R0002 Model: GBU72 Model: ABB PCS6000 PRODUCT FAMLIY ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101
