Author Archives: changxin

ABB TU891 3BSE069206R1 Non-Intrinsically Safe Termination Unit

Product Overview The ABB TU891 (Order No. 3BSE069206R1) is a specialized termination unit designed for the ABB S800 I/O system, specifically engineered for non-intrinsically safe (Non-IS) applications. This unit serves as the robust mechanical and electrical interface between the S800 I/O modules and the field wiring. The ABB TU891 is distinct in its design, providing a secure mounting base that…

ABB TU852 Industrial Automation Redundancy ModuleProduct Overview The ABB TU852 is a specialized Redundant Module Termination Unit (MTU) designed for the ABB S800 I/O system, serving as a critical hardware foundation for high-availability automation architectures. Identified by the part number 3BSE035276R1. this unit is engineered to support a dual-module configuration, allowing two S800 I/O modules to be mounted side-by-side on a single base. The ABB TU852 is specifically rated for 50V applications, making it the ideal interface for connecting redundant digital inputs or outputs to field devices such as solenoid valves, relays, and sensors. By facilitating a redundant setup, the TU852 ensures that critical control loops remain operational even in the event of a module failure, thereby maximizing system uptime and safety. In the context of industrial control systems, the TU852 plays a pivotal role in minimizing single points of failure. It acts as a bridge between the field wiring and the electronic I/O modules, providing a unified connection point for power and communication signals. The ABB TU852 is designed to work seamlessly with the AC 800M controller platform, enabling a “hot standby” configuration where a secondary module instantly takes over control if the primary module malfunctions. This capability is essential for industries where process continuity is non-negotiable, such as power generation and oil refining. The ABB TU852 features a robust mechanical design that ensures secure mounting and reliable electrical contact. Its extended form factor accommodates the necessary wiring space for 50V field connections while maintaining a compact footprint relative to the functionality it provides. The TU852 simplifies the complexity of redundant wiring by consolidating connections, reducing the potential for errors during installation. This module is a testament to ABB’s commitment to providing scalable, reliable, and maintainable solutions for mission-critical industrial automation.

Product Overview The ABB TU852 is a specialized Redundant Module Termination Unit (MTU) designed for the ABB S800 I/O system, serving as a critical hardware foundation for high-availability automation architectures. Identified by the part number 3BSE035276R1. this unit is engineered to support a dual-module configuration, allowing two S800 I/O modules to be mounted side-by-side on a single base.…

ABB TU850 (3BSE020850R1) 50V Expansion Module Base

Description The ABB TU850 (Order Code: 3BSE020850R1) is a specialized expansion module base designed for the ABB S800 I/O system. This unit serves as the physical and electrical foundation for the TB850 modem module, providing a secure and reliable interface for distributed I/O applications operating at 50VDC. Engineered for specific industrial environments, the TU850 is designed to support the TB850…

ABB 3BSE022460R1 Base Unit: Precision Engineering for Redundant Automation Networks

Description The ABB TU846 3BSE022460R1 is a specialized Module Termination Unit (MTU) designed to support redundant configurations within the ABB S800 I/O system. It serves as the physical and electrical interface for the CI840/CI840A field communication interfaces, facilitating dual ModuleBus connections to ensure high availability. The ABB TU846 3BSE022460R1 integrates power connections, electrical ModuleBus terminations, and station address settings…

TU844 3BSE021445R1: Ruggedized Base Plate for Redundant Control Architectures

Description The TU844 (Part Number: 3BSE021445R1) is a specialized Redundant Module Termination Unit (MTU) manufactured by ABB. Designed for the S800 and AC 800M I/O systems, this unit serves as the physical foundation for high-availability automation setups. Unlike standard bases that hold a single module, the TU844 is engineered to mount two I/O modules side-by-side (e.g., two AI810 or AO810 modules). It provides the necessary wiring interface and internal bus…

ABB S800 I/O TU843 3BSE021443R1 Redundant Bus Unit

Product Overview The ABB TU843 (Order No. 3BSE021443R1) is a specialized termination unit designed specifically for the ABB S800 I/O system, serving as the critical interface for PROFIBUS DP communication. Unlike standard I/O termination units, the ABB TU843 is engineered to handle high-speed fieldbus signals, ensuring reliable data exchange between the central controller and distributed field devices. This unit provides…

ABB TU842 3BSE020850R1 Redundant MTU Baseplate

Product Overview The ABB TU842 is a specialized Redundant Module Termination Unit (MTU) designed for the ABB S800 I/O system, a critical component within the broader AC 800M control architecture. Identified by the part number 3BSE020850R1. this unit is engineered to support high-availability applications where system reliability is paramount. Unlike standard termination units that support a single I/O…

ABB TU847 (3BSE022462R1) Redundant PROFIBUS Termination Unit

Description The TU847 (Order Code: 3BSE022462R1) is a specialized Module Termination Unit (MTU) manufactured by ABB, designed to support the CI840 and CI840A field communication interfaces. It serves as a critical hardware component for establishing PROFIBUS DP redundancy, allowing industrial networks to maintain communication even if a primary cable path fails. Functioning as a redundancy link module,…

ABB TU849 3BSE077475R1 S800 I/O Base Unit

Product Overview The ABB TU849 is a specialized Module Termination Unit (MTU) designed for the ABB S800 I/O system, specifically engineered to support “1oo1” (1 out of 1) architecture configurations. This unit serves as the critical physical interface between the S800 I/O modules and the field wiring, providing a robust and reliable connection point for process signals.…

ABB TU841 3BSE020848R1 Base for Non-Redundant I/O

Description The ABB TU841 (Order Code: 3BSE020848R1) is a redundant I/O baseplate designed for the ABB S800 I/O system. This unit serves as the physical and electrical foundation for the TB840 or TB840A modem modules, providing a secure and reliable interface for distributed I/O applications. Engineered for high-reliability environments, the TU841 is specifically designed to support non-redundant I/O modules while…