The ABB TB811 (Order Code: 3BSE008568R1) is a Modulebus Optical Port module designed for industrial automation systems. It serves as a critical interface within the ABB S800 I/O system, enabling the conversion of electrical signals to optical signals for transmission over fiber optic cables. This module is essential for extending communication distances and providing robust electrical isolation between control modules and I/O clusters.

Features

• Optical Modulebus interface for S800 I/O systems.
• Designed for integration with CI810 and CI820 communication interfaces.
• Supports high-speed optical communication for distributed control architectures.
• Provides 2.5 kV AC electrical isolation.
• Continuous autodiagnostics for system start-up and operational monitoring.

Applications

• Power & Energy: Generator set monitoring and substation automation.
• Oil & Gas: Distributed control systems for refineries and offshore platforms.
• Metals & Mining: Blast furnace control and large-scale production line management.
• Pulp & Paper / Chemical: Drive system control and batch processing automation.

Technical Specifications

Installation Guidelines

• Ensure the system power is disconnected before installing or removing the module from the DIN rail or mounting base.
• Verify that the electrical ID of the module matches the system configuration during start-up to prevent operational errors.
• Use appropriate fiber optic cabling and handle connectors with care to maintain the 12 dB optical budget.
• Maintain proper ventilation in the cabinet to ensure the module operates within the specified temperature range (-40 degC to +70 degC).
• Ensure proper grounding of the mounting rail to maintain effective electrical isolation.

FAQ

What is the primary function of the TB811?

The TB811 provides an optical interface for the Modulebus, allowing for the connection of I/O clusters over fiber optic cables to increase communication distance and provide electrical isolation.

Which controllers is the TB811 compatible with?

It is primarily designed for use with ABB S800 I/O system components, including the CI810 and CI820 communication interfaces.

What is the communication speed of this module?

The TB811 supports a 5 Mbits driver, which is specific to this model and differs from other variants like the TB842.