RLM02 is a PROFIBUS redundant link module produced by ABB Group,which can convert non-redundant PROFIBUS lines into two redundant RS485 lines,or reverse conversion.The module is designed to improve the reliability and redundancy of the PROFIBUS network,ensuring that the network can maintain communication in the event of a single line failure.
2.Product parameters
Transmission rate:Supports the transmission rate of 9.6kbit/s to 12Mbit/s,meeting the requirements of various PROFIBUS networks.
Number of ports:Three RS485 ports are used to connect the main line(M)and two redundant lines(A and B).
Redundancy function:Support for redundant couplers allows direct connection of PROFIBUS sites with redundant couplers to the redundant PROFIBUS network set up by RLM02.
Error detection:The RLM02 is capable of monitoring the activity and error status of all three lines and indicating error messages via LED indicators on the panel and specific signal interfaces.
Power supply:Support for a single or redundant power supply,ensuring that the module can continue to work in the event of a power failure.
Maximum number of PROFIBUS sites:Each RLM02 PROFIBUS interface can serve up to 31 ProFIbus sites.
Third,product application
The RLM02 redundant link module is mainly used in PROFIBUS networks that require high reliability and redundancy.For example,in the chemical,petroleum,building materials,aerospace and electrical industries,due to the complexity of the production environment and high requirements for equipment reliability,redundant networks are often needed to ensure the continuity and stability of the production process.The RLM02 module can integrate field devices in these industries that are only equipped with a single Profibus DP interface into redundant Profibus networks,thereby increasing the reliability and redundancy of the entire network.
4.Brand introduction
Company name:ABB Group
Headquarters:Zurich,Switzerland
Company size:The ABB Group is a Fortune 500 company with operations in more than 100 countries and approximately 130,000 employees(figures may change over time).
What it does:ABB is a leader in power and automation technologies,providing industrial and power customers with solutions that improve productivity while reducing environmental impact.Its products include a full range of power transformers,distribution transformers,high/medium/low voltage switchgear products,AC and DC transmission and distribution systems,power automation systems and various measuring equipment and sensors.
History:ABB was formed in 1988 by the merger of Sweden’s ASEA and Switzerland’s BBC Brown Boveri,which were founded in 1883 and 1891,respectively.Since its inception,ABB has evolved through acquisitions,restructuring and business expansion to become a leading global provider of power and automation technologies.
In summary,RLM02 ABB is a powerful and stable PROFIBUS redundant link module,which can meet the requirements of various PROFIBUS network applications with high reliability and redundancy requirements.At the same time,ABB Group as the world’s leading provider of power and automation technology,its products and technologies have a wide range of applications and recognition in the industry.
