ABB TU841 Communications - S800 I/O Communication interfaces

The TU841 is a module termination unit (MTU) for redundant configuration of Optical ModuleBus Modem TB840/TB840A, for use with non-redundant I/O.

Product Overview

ABB TU841 Communications - S800 I/O Communication Interfaces is a high-performance communication interface module designed specifically for S800 I/O systems, playing a critical bridging role in industrial automation control systems. It can achieve efficient data communication and interaction between S800 I/O systems and various controllers, upper computers, and other external devices, providing a solid foundation for building complex and reliable industrial automation networks. It is widely used in multiple industries such as energy, manufacturing, and transportation, helping enterprises improve their automation level and production efficiency.

Specification parameters

Communication Protocol: Supports multiple industrial standard communication protocols, including PROFIBUS DP, Modbus TCP, Ethernet/IP, etc., which can flexibly adapt to different brands and types of industrial equipment, achieving seamless communication between multiple devices.

Transmission rate: The transmission rate varies depending on different communication protocols. Under the PROFIBUS DP protocol, the maximum transmission rate can reach 12Mbps; Under Modbus TCP and Ethernet/IP protocols, Ethernet based transmission rates can achieve 10/100Mbps adaptive, meeting the requirements of high-speed data transmission.

Interface type: Equipped with a variety of interfaces, including PROFIBUS DP interface, Ethernet RJ45 interface, etc., for easy connection with different devices. Among them, the PROFIBUS DP interface adopts a standard 9-pin D-type connector, and the Ethernet RJ45 interface complies with the IEEE 802.3 standard.

Working voltage: The working voltage range is 24V DC ± 10%, with good power adaptability and stable operation within a certain voltage fluctuation range, ensuring communication continuity.

Working temperature: The working temperature range is -25 ℃ to+70 ℃, and the storage temperature range is -40 ℃ to+85 ℃. It can operate normally under harsh industrial temperature conditions and adapt to the needs of different industrial scenarios.

Protection level: reaching IP20 protection level, it can effectively prevent solid foreign objects larger than 12mm from entering, suitable for most indoor industrial environments. If it needs to be used in more harsh environments, measures such as protective cabinets can be taken.

Core functions

Multi protocol communication: With support for multiple industrial standard communication protocols, TU841 can serve as a communication conversion hub between devices with different protocols. In large-scale industrial automation projects, on-site sensors and actuators using PROFIBUS DP protocol can be connected to upper level monitoring systems based on Ethernet/IP protocol to achieve interconnectivity between heterogeneous devices, break down communication barriers between devices, and improve system integration and compatibility.

High speed data transmission: Based on Ethernet communication interfaces and high transmission rates, it can achieve fast and stable transmission of large amounts of data. In industrial production process monitoring scenarios, various data from on-site equipment (such as temperature, pressure, flow rate, etc.) can be collected and transmitted in real time to the control center, allowing operators to timely grasp the production operation status and quickly issue control instructions to on-site equipment, ensuring efficient and accurate control of the production process.

Equipment status monitoring: Equipped with equipment status monitoring function, it can monitor the real-time operation status of communication interfaces themselves and connected devices. Intuitively display the working status, communication connection status, fault information, etc. of the device through indicator lights, diagnostic software, and other means. When there are abnormal situations such as communication interruptions or equipment failures, timely alarm signals can be issued to facilitate technicians to quickly locate and handle the problem, improving the maintainability and reliability of the system.