top of page
Main Image.png

ABB TB820

ABB

Controller

S800 I/O

TB820

ISO 9001:2015 Certified Quality

Our certified process ensures consistent quality and reliable repairs every time.

2-Year Repair Warranty

We stand behind our repairs with an extensive 2-year warranty on parts and labor for your peace of mind.

Fast Turnaround Time

Our efficient process and large parts inventory help minimize your operational downtime.

Expert Component-Level Repair

We find and replace individual failed components, offering a more affordable and effective repair than full replacement.

Free, No-Obligation Quote

Send us your item for a free evaluation and receive a detailed repair quote with no commitment required.

Product Description

The ABB TB820 is a high-integrity termination unit designed for reliable signal conditioning and distribution within critical process control systems. This robust module provides secure connections for field wiring, ensuring accurate transmission of analog and digital signals to the control system. Featuring integrated signal conditioning, the TB820 offers galvanic isolation and surge protection, safeguarding sensitive control equipment from electrical interference and damage. Its modular design facilitates easy installation and maintenance, while comprehensive diagnostics enable rapid fault detection and resolution. The TB820 is a vital component for achieving dependable and precise process control in demanding industrial environments.

Is Your Device Showing These Signs?

ABB TB820 S800 I/O module failures typically involve communication errors stemming from corrupted configuration data or backplane connectivity problems. Resolve these issues by verifying Profibus DP settings, checking termination resistors, and ensuring proper grounding. Firmware corruption necessitates a reflash using Control Builder software. Component failures on the TB820, such as capacitor degradation or IC malfunction, require board-level repair or module replacement. Address power supply fluctuations and noise interference to prevent future TB820 malfunctions.

Technical specifications

  • The ABB TB820 is a redundant communication interface module designed for System 800xA, providing a robust and reliable connection between the controller and I/O modules across a FOUNDATION Fieldbus H1 network. It supports redundant fieldbus segments, ensuring continuous operation even in the event of a communication failure. The TB820 features integrated galvanic isolation, protecting the controller from electrical noise and ground loops. Configuration and diagnostics are performed through the 800xA engineering environment, enabling seamless integration and simplified maintenance. The module handles all communication protocols and timing requirements for the fieldbus, offloading processing from the controller. It is certified for hazardous area installations and operates within a wide temperature range, guaranteeing performance in demanding industrial environments.

Our Repair Process for the

TB820

Our repair process for ABB TB820 S800 I/O module failures begins with a thorough verification of Profibus DP settings, termination resistors, and grounding to eliminate communication errors. Firmware corruption is resolved through a reflash using Control Builder software. Component failures, including capacitor degradation or IC malfunction, mandate board-level repair or complete module replacement. Power supply fluctuations and noise interference are addressed to prevent future malfunctions.

Your Guarantee: Warranty & Lifetime Support

Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.

Comprehensive Repairs You Can Depend On

We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.

Save Significantly

Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

bottom of page