描述
ABB TU921S 3KDE175111L9210是一款冗余终端单元（TU 16 R-ex），主要用于ABB的S900 I/O系统。以下是其产品详情：
基本信息
品牌：ABB
型号：TU921S
产品编号：3KDE175111L9210
类型：冗余终端单元
功能特点
适用场景：S900 I/O系统可安装在非危险区域，也可根据所选系统变体直接安装在1区或2区危险区域，TU921S可用于连接安装在2区、1区或0区的本质安全现场设备。
冗余设计：支持电源和通信冗余，确保系统的高可靠性。
热插拔功能：具备热配置和热插拔功能，可在运行过程中进行配置更改和模块更换，而无需中断主电压。
诊断功能：具有扩展诊断功能，可通过FDT/DTM进行出色的配置和诊断，且所有组件均采用G3涂层，提高了设备在恶劣环境下的耐久性。
接线能力：可作为最多16个I/O模块的终端单元，每个通道最多有4个端子，还可进行总线地址预选择。
The ABB TU921S 3KDE175111L9210 is a redundant terminal unit(TU 16 R-ex)designed for use with ABB’s S900 I/O system.Product details are as follows:
Basic Information
Brand:ABB
Model:TU921S
Product Number:3KDE175111L9210
Type:Redundant Terminal Unit
Features
Application Scenarios:The S900 I/O system can be installed in non-hazardous areas or,depending on the selected system variant,directly in Zone 1 or Zone 2 hazardous areas.The TU921S can be used to connect intrinsically safe field devices installed in Zones 2,1,or 0.
Redundant Design:Supports power supply and communication redundancy,ensuring high system reliability.
Hot-Swap Capability:Hot configuration and hot-swap functionality enable configuration changes and module replacement during operation without interrupting the mains voltage.
Diagnostic Capabilities:It features extended diagnostic capabilities,enabling superior configuration and diagnostics via FDT/DTM.All components feature a G3 coating,enhancing durability in harsh environments.
Wiring Capabilities:It can serve as a terminal unit for up to 16 I/O modules,with up to four terminals per channel and bus address preselection.
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
