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Product Description
The ABB TU845 is a robust and reliable communication interface module designed for industrial automation systems. This module serves as a vital link between the controller and field devices, ensuring seamless data transmission and control. It supports various communication protocols, including PROFIBUS DP, enabling integration with a wide range of devices. The TU845 features advanced diagnostics capabilities, providing real-time monitoring of network status and device health, facilitating proactive maintenance and minimizing downtime. Its rugged construction and wide operating temperature range guarantee dependable performance in harsh industrial environments. The module is configured through dedicated software tools, allowing for flexible customization and easy integration into existing systems. The TU845 is an essential component for building efficient and dependable industrial automation solutions.
Is Your Device Showing These Signs?
ABB TU845 S800 I/O module failures often stem from issues within the termination unit, causing communication errors on the S800 I/O bus. Resolve these problems by inspecting and replacing damaged connectors, addressing power supply fluctuations that degrade signal integrity, and ensuring proper grounding to mitigate electromagnetic interference. Firmware corruption is another potential cause; perform a firmware upgrade or re-flash to restore functionality. Overheating due to inadequate ventilation leads to component degradation; improve airflow and consider heat sinks. Finally, address short circuits or open circuits on I/O channels by replacing faulty components and verifying wiring connections.
Technical specifications
The ABB TU845 is a high-integrity termination unit designed for safety-critical applications within the S800 I/O system. This module provides robust signal conditioning and termination for field devices, ensuring reliable data transmission to the control system. It features integrated HART multiplexing capabilities, enabling access to diagnostic information from smart field instruments. The TU845 supports redundant configurations for increased system availability and fault tolerance. It includes comprehensive diagnostics and error reporting, facilitating efficient troubleshooting and maintenance. The unit is certified for use in SIL3 applications according to IEC 61508, guaranteeing adherence to stringent safety standards. The TU845 offers a compact design for optimized cabinet space utilization and operates within a wide temperature range, ensuring reliable performance in harsh industrial environments.
Our Repair Process for the
TU845
Our repair process for ABB TU845 S800 I/O module failures begins with a thorough inspection of the termination unit, focusing on damaged connectors which are replaced immediately. Power supply fluctuations are addressed to stabilize signal integrity, and proper grounding is established to eliminate electromagnetic interference. Firmware corruption is resolved through a mandatory firmware upgrade or re-flash. Overheating issues are mitigated by improving airflow and installing heat sinks as needed. Finally, any short circuits or open circuits on I/O channels are rectified by replacing defective components and verifying all wiring connections.
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.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.

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