Description

ABB 81ET03 GJR2389800R1210

I. Basic Information

• Full Model: 81ET03 GJR2389800R1210
• Series: ABB industrial automation control module, commonly used in AC 800M control systems or Bailey INFI 90 systems, belonging to communication or interface modules.
• Purpose: As a communication interface unit in industrial automation systems, it connects field devices, expands communication protocols, or realizes data interaction between systems, suitable for complex industrial scenarios such as power, chemical, and energy sectors.

II. Core Functions and Features

Communication Protocol Support

• Likely supports industrial communication protocols such as Modbus RTU/ASCII, Profibus DP, and CANopen for communication with sensors, actuators, or third-party devices.
• Supports Point-to-Point or Master/Slave communication modes to adapt to networking requirements of different devices.

Interface Configuration

• Physical Interfaces: May include RS-232/RS-485 serial ports (for low-speed communication), RJ45 Ethernet interfaces (for high-speed data transmission), or dedicated bus interfaces (e.g., backplane bus).
• Electrical Characteristics: Serial ports support isolated design with strong anti-interference capability, suitable for noise suppression in industrial environments.

Data Processing and Conversion

• Supports protocol conversion (e.g., Modbus to Profibus) to realize interconnection of devices with different communication standards.
• Equipped with data caching, verification (e.g., CRC check), and error handling mechanisms to ensure communication reliability.

Redundancy and Reliability

• May support hot-swapping for online maintenance; redundant communication links can be configured in some scenarios to enhance system availability.

III. Technical Parameters

IV. Application Scenarios

Power System

• Connects relay protection devices and smart meters in substations, uploading data to monitoring systems via Modbus protocol.

Process Industry

• Serves as a communication bridge between field instruments (e.g., pressure transmitters, flowmeters) and PLC/DCS in chemical production lines, converting Profibus signals to system buses.

Energy and Environmental Protection

• Connects control modules of water pumps and valves in wastewater treatment plants to realize remote monitoring and data acquisition (SCADA).