ABB TU891 3BSC840157R1 Mounting Termination Unit PLC Module In Stock

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The TU891 MTU has gray terminals for field signals and process voltage connections. The maximum rated voltage is 50 V and maximum rated current is 2 A per channel, but these are primarily constrained to specific values by the design of the I/O modules for their certified application. The MTU distributes the ModuleBus to the I/O module and to the next MTU. It also generates the correct address to the I/O module by shifting the outgoing position signals to the next MTU.

Two mechanical keys are used to configure the MTU for different types of I.S. I/O modules. This is only a mechanical configuration and it does not affect the functionality of the MTU or the I/O module. The keys used on the TU891 are of the opposite gender to those on any other type of MTU and will mate only with IS I/O modules. Built with industrial-grade components, the TU891 is engineered for high reliability and durability, making it suitable for challenging environments.

ABB S800 I/O is a comprehensive, distributed and modular process I/O system that communicates with parent controllers and PLCs over industry-standard fieldbus technology and therefore can be used with a wide range of process controllers from ABB and other vendors. The TU891 is a compact MTU for the S800 I/O. The MTU is a passive unit used for connection of the field wiring and power supply to the I/O modules. It also contains a part of the ModuleBus. The TU891 MTU has gray terminals for field signals and process voltage connections. The maximum rated voltage is 50 V and maximum rated current is 2 A per channel, but these are primarily constrained to specific values by the design of the I/O modules for their certified application.

The System 800xA unifies all automation tasks into one cohesive environment. This integration allows for streamlined operations, reducing the complexity and cost associated with maintaining multiple disparate systems. The System 800xA supports a wide range of ABB controllers, including the AC 800M, AC 100, Advant/Master, Advant/MOD 300, DCI, Harmony/INFI 90, Melody, Freelance, and Safeguard. The ABB TU891 (part number 3BSC840157R1) is a specialized input/output module designed for use within the ABB 800xA control system framework. It is part of ABB's extensive portfolio of automation products, offering robust features suitable for various industrial applications. The TU891 provides a range of digital and analog input/output channels, allowing it to interface with various field devices such as sensors, actuators, and other control equipment.

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