ABB TB820 Module Bus Cluster Modem

Description

The ABB TB820 Module Bus Cluster Modem (model TB820V2 3BSE013208R0001) is a modular communication device belonging to the ABB Advant series, designed for remote I/O communication with the S800 I/O series. It supports both fiber optic and cable connections, enabling integration of multiple I/O modules into distributed control systems (DCS) or programmable logic controllers (PLC), and can also function as a digital input module. Key technical specifications include dimensions of 65 x 55 x 30 millimeters, weight of 60 grams, operating temperature range of -25 degrees Celsius to +55 degrees Celsius, storage temperature range of -40 degrees Celsius to +70 degrees Celsius, and IP20 protection rating. It features RS485 and RS232 communication interfaces with a maximum baud rate of 115.2 kbps, and its fiber interface allows connection of up to 12 I/O modules and 7 clusters, making it ideal for local distribution scenarios requiring expanded I/O capacity. With a modular design for easy configuration and function expansion, it offers high reliability for stable operation in harsh industrial environments, and supports long-distance communication for widely distributed equipment. Its application scenarios span power and energy, process industries, factory automation, rail transit, water treatment and environmental protection, including use cases like substation automation, remote wellhead monitoring, production line control, and sewage treatment station pump control.