ABB 3BSE022462R1 TU847 Module

Brand: ABB

Product Series: System 800xA / S800 I/O System

Model: TU847 (Part Number: 3BSE022462R1)

Product Type: Dual Module Termination Unit (MTU) for S800 I/O Redundancy

ABB 3BSE022462R1 TU847 Module

Technical Parameters:

Module Capacity: Accommodates up to two S800 I/O modules (such as the CI840 or CI840A Fieldbus Communication Interfaces) to provide full hardware and line media redundancy.

Module Configuration: Features two individual slots for communication interface modules alongside two distinct slots for localized optical ModuleBus modems.

Power Distribution: Integrates redundant 24 VDC power supply routing terminals, ensuring uninterrupted voltage delivery to both docked communication cards and the underlying optical ModuleBus networks.

Electrical Current Rating: Engineered to support up to 3A max power throughput per supply channel, optimized for stable backplane processing loops.

Physical Terminal Matrix: Equipped with specialized termination interfaces for ModuleBus connections, eliminating electrical signal reflection over short-range networks.

Isolation Performance: Built-in electrical isolation barriers across independent power input tracks to prevent common-mode noise propagation and ground loop faults.

Maximum I/O Capacity: Designed to pass unified field telemetry routing for up to 12 clusters of S800 I/O modules connected via downstream optical lines.

Mechanical Design: Robust, DIN-rail mountable module housing with net physical dimensions of approximately 186 mm (Width) x 64 mm (Depth) x 150 mm (Height) and a net weight of 0.55 kg.

Industrial Sectors:

Process Automation Utilities (Petrochemical, Chemical, Oil & Gas Processing), Conventional and Renewable Power Generation Stations, Water and Wastewater Treatment Facilities, Heavy Metallurgical and Mining Operations, and Pulp & Paper Mills.

Application Scenarios:

1. Redundant Fieldbus Gateway Management: Deployed inside System 800xA automation enclosures to act as the base termination unit for dual CI840 modules, establishing a high-availability Profibus DP link to the central master controller.

2. Distributed I/O Cluster Isolation: Installed within harsh process control rooms to decouple individual S800 I/O sub-racks via optical links, ensuring localized field faults do not cause a full system shutdown.

3. Power Utility Safety Automation: Integrated into boiler or steam turbine control panels where standard I/O communication failures cannot be tolerated, managing instant hardware failover between active and standby communication units.

4. Continuous Process Line Interlocking: Used in critical chemical blending applications to mount redundant network interfaces, maintaining continuous data acquisition from field transmitters during hot-swapping procedures.