ABB RLM02 Redundancy Link Module 3BSE091723R1

Overview

The ABB RLM02 Redundancy Link Module is designed to ensure robust PROFIBUS communication by providing a redundant connection with active monitoring. It is ideal for applications where reliable, fault-tolerant communication is crucial.

Key Features:

• Redundant PROFIBUS Lines: Supports redundant A, B lines and a non-redundant M line for PROFIBUS communication.
• LED Indicators: Features easy-to-read LEDs indicating bus activity, errors, and power status.
• Adjustable Baud Rate: Allows for configuration of transmission speeds from 9.6 kBd to 12 MBd via a rotary switch.
• Alarm Contact: A normally closed alarm contact for error notifications, with a switching current of up to 1 A.
• Compact Design: Mounts on a 35 mm rail with a protection rating of IP20.

Technical Specifications:

• Brand: ABB
• Model: RLM02
• Part Number: 3BSE091723R1
• Baud Rate Settings: Adjustable via a rotary switch, ranging from 9.6 kBd to 12 MBD.
• Power Supply: Operates at 24 VDC with a typical current consumption of 120 mA.
• Power Loss: Approximately 3.6 W.
• Transmission Rate: Supports RS 485 serial interface, with a maximum transmission rate of 12 MBit/s.
• Dimensions: 134 x 56 x 70 mm (H x W x D).
• Weight: Approx. 330 g.
• Ambient Conditions: Operating temperature: 0 … 55°C, storage temperature: -30 … 85°C.
• Protection Class: IP 20, suitable for indoor use.
• Certification: UL-listed, CE, CSA, DNV GL, suitable for marine applications.
• Line Length: 50 meters for both M to Slave and A/B to A/B connections.

FAQ:

1. What is the maximum baud rate supported by the 3BSE091723R1?
   • The maximum baud rate is 12 Mbit/s.
2. What kind of alarm contacts does the module have?
   • It has a normally closed alarm contact that opens in case of an error.
3. How does the 3BSE091723R1 ensure fault tolerance?
   • It uses redundant A and B PROFIBUS lines, allowing continued communication if one line fails.
4. What is the power supply requirement for this module?
   • It operates at 24 VDC with a typical current consumption of 120 mA.

Check official datasheet for more detailed information: RLM02 Redundancy Link Module for PROFIBUS DP_FMS