ABB FMBT-21 PROFIBUS-DP adapter module

The ABB FMBT-21 is a device in the ABB product line, mainly used in certain industrial control and automation scenarios. Here is a detailed introduction in English:

General Description

The FMBT-21 is a compact and highly - functional module designed to meet the specific requirements of modern industrial applications. It is part of ABB's efforts to provide advanced solutions for industrial control and monitoring.

Functions and Applications

Measurement and Monitoring: It is capable of precisely measuring various electrical parameters such as voltage, current, and power. This allows for accurate monitoring of the electrical system's performance, enabling operators to detect any abnormalities or inefficiencies in a timely manner.

Protection and Control: The FMBT-21 provides protection functions against over - current, over - voltage, and short - circuit conditions. It can also be used to control the operation of electrical equipment, ensuring safe and reliable operation of the entire system.

Communication and Integration: It features built - in communication interfaces, such as Modbus or Profibus, which enable seamless integration with other devices in the industrial network. This allows for easy data exchange and centralized control, enhancing the overall efficiency of the automation system.

Technical Specifications

Measurement Accuracy: The voltage and current measurement accuracy is within ±0.5%, ensuring high - precision measurement results. The power measurement accuracy is ±1%, which is sufficient for most industrial applications.

Communication Interface: As mentioned earlier, it supports popular industrial communication protocols like Modbus RTU and Profibus DP. The communication baud rate can be configured according to the specific requirements of the application, typically ranging from 9600 bps to 115200 bps.

Input and Output Signals: It has multiple analog input channels for connecting to sensors and transducers that measure electrical parameters. There are also digital input and output channels for receiving control signals and sending out alarm or control commands.

Power Supply: The FMBT-21 operates on a wide - range power supply, usually 24 VDC ±10% or 110 - 230 VAC ±10%. This allows for flexible installation in different power supply environments.

Operating Temperature: It can operate in a temperature range of - 25 °C to + 70 °C, making it suitable for use in various industrial environments, including those with harsh temperature conditions.

In conclusion, the ABB FMBT-21 is a reliable and versatile device that plays an important role in industrial electrical control and monitoring. Its advanced functions, high - precision measurement capabilities, and easy integration with other systems make it a preferred choice for many industrial applications.