ABB tb840A Fiber Optic Interface

Product Description

The ABB TB840A is a fiber optic interface designed specifically for the Optical ModuleBus. It serves as a crucial component within the S800 I/O system, a comprehensive, distributed, and modular process I/O system. This 

modem facilitates communication between the ModuleBus and parent controllers or PLCs, utilizing industry-standard field buses.

Key Features and Benefits

• Redundancy: The TB840A supports redundancy configurations, ensuring continuous operation even in the event of failures. Each module can be connected to different optical ModuleBus lines while remaining connected

• to the same electrical ModuleBus.

• Scalability: The modem can accommodate up to 12 I/O modules connected to the electrical ModuleBus and up to seven clusters connected to the fiber optic ModuleBus. This flexibility allows for expansion as your system

• grows.

• Reliability: The TB840A is built with reliability in mind. It features isolated power supply to I/O modules, hot-swap capabilities, and is compatible with various industry certifications, including CE, UL, ATEX, and marine

• certifications.

• Efficiency: The TB840A optimizes system efficiency by providing supervisory functions for the I/O ModuleBus and power supply.

Technical Specifications

• Communication Protocol: ModuleBus

• Master or Slave: Slave

• Line Redundancy: Yes

• Module Redundancy: Yes

• Operating Temperature: 0 to +55 °C

• Storage Temperature: -40 to +70 °C

• Certifications: CE, UL, ATEX, marine certifications

Applications

The ABB TB840A is well-suited for a wide range of applications, including:

• Process automation: In industrial processes where reliable and efficient communication is essential.

• Oil and gas: For monitoring and controlling equipment in harsh environments.

• Power generation: For integration into power generation systems.

• Marine applications: Due to its marine certifications, the TB840A can be used in various marine environments.

Considerations

• Compatibility: Ensure compatibility with other components in your S800 I/O system.

• Installation: Follow the manufacturer's guidelines for proper installation to ensure optimal performance.

• Configuration: Configure the modem according to your specific application requirements.

Conclusion

The ABB TB840A ModuleBus Modem is a robust and reliable solution for connecting I/O modules in S800 I/O systems. Its redundancy, scalability, and compatibility with various industry standards make it a valuable

 asset in demanding industrial environments.

Would you like to know more about specific features, applications, or have any other questions regarding the ABB TB840A?

Note: For the most up-to-date information and detailed specifications, please refer to the official ABB product documentation.

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