描述
ABB TU845 3BSE021447R1是用于ABB S800 I/O系统的冗余模块终端单元（MTU）。以下是其产品详情：
基本信息
型号：TU845
订货号：3BSE021447R1
制造商：ABB
安装方式：DIN导轨安装
技术参数
通道数：最多8个I/O通道。
额定电压：每个通道的最大额定电压为50V。
额定电流：最大额定电流为2A。
过程电压连接：支持2+2个过程电压连接。
信号连接：每个通道有两个I/O连接和一个ZP连接，输入信号通过单独的分流棒TY801连接，分流棒用于在电压和电流输入之间进行选择。
功能特点
ModuleBus分配：分配两个ModuleBus，一个分配给每个I/O模块，一个分配给下一个MTU，还通过将输出位置信号转移到下一个MTU来为I/O模块生成正确的地址。
机械键控：通过四个机械键（每个I/O模块两个）为不同类型的I/O模块配置MTU，每个键有六个位置，总共有36种不同的配置，可防止插入错误的I/O模块。
安装与锁定：具有机械闩锁，可将MTU锁定在DIN导轨上，便于安装且确保稳固。
兼容模块
可与AI845等I/O模块配合使用，当使用TU845时，AI845模块的每个通道都可以是电压或电流输入。
The ABB TU845 3BSE021447R1 is a redundant modular terminal unit(MTU)for the ABB S800 I/O system.Product details are as follows:
Basic Information
Model:TU845
Order Number:3BSE021447R1
Manufacturer:ABB
Mounting Method:DIN rail
Technical Parameters
Number of Channels:Up to 8 I/O channels.
Rated Voltage:The maximum rated voltage per channel is 50V.
Rated Current:The maximum rated current is 2A.
Process Voltage Connection:Supports 2+2 process voltage connections.
Signal Connection:Each channel has two I/O connections and one ZP connection.Input signals are connected via a separate shunt bar,TY801,which is used to select between voltage and current inputs.Features
ModuleBus Assignment:Two ModuleBuses are assigned—one for each I/O module and one for the next MTU.This also generates the correct address for the I/O module by transferring the output position signal to the next MTU.
Mechanical Keying:The MTU can be configured for different I/O module types using four mechanical keys(two per I/O module).Each key has six positions,for a total of 36 different configurations,preventing incorrect I/O module insertion.
Mounting and Locking:A mechanical latch locks the MTU to the DIN rail for easy and secure installation.
Compatible Modules:Compatible with I/O modules such as the AI845.When using the TU845,each channel of the AI845 module can be a voltage or current input.
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
