ABB RLM02 3BSE091723R1 Communication Module

Contact info

Sales manager:

Yuki

Email:

sales6@askplc.com

Whatsapp:

+86 17359287459

Product info

Brand:

ABB

Product Number:

RLM02 3BSE091723R1

Describe:

The ABB RLM02 3BSE091723R1 is a PROFIBUS DP/FMS Redundancy Link Module designed to enhance the reliability of industrial communication networks . Its primary function is to convert a non-redundant PROFIBUS line into two redundant RS485 lines (Line A and Line B), or vice versa . This module acts as an "active switch," allowing standard field devices equipped with only a single PROFIBUS interface to be integrated into a redundant, fault-tolerant network architecture . By doing so, it ensures that communication continues without interruption even if one of the physical bus lines fails.

Data info

Product Type:

Communication Module / PROFIBUS Redundancy Link Module

Transmission Rate:

Supports all rates from 9.6 kbit/s up to 12 Mbit/s (IEC 61158-2)

Interfaces:

3 x RS485 (9-pin Sub-D connectors: A, B, M)

Power Supply:

24 V DC (Redundant possible: L1+ and L2+)

Typical Current Draw:

120 mA at 24 V

Alarm Contact:

Potential-free (Normally closed), < 60 V DC / Max 1 A

Mounting:

DIN rail mounting 

Application

Process Industries (Oil & Gas, Chemical):

In continuous process control, a broken cable or faulty connector on a standard PROFIBUS line can shut down a reactor. The RLM02 creates line redundancy, so if Line A fails, the control logic automatically switches to Line B without interrupting the process .

Marine & Offshore:

Certified by DNV GL, the RLM02 is suitable for ship engine rooms and offshore platforms where environmental stress (vibration, humidity) requires high equipment resilience .

Power Generation:

Used in turbine control and auxiliary systems to ensure that fieldbus communication between sensors, actuators, and the DCS (Distributed Control System) remains stable .

We ship globally

The fastest and most competitive service, regardless of size and weight.

We use fast and reliable global companies (UPS, DHL, FedEx, TNT, and DPD)

Provide express delivery services

We can use the customer's shipping account to ship the goods.

FAQ

Q: What is ABB known for in the industrial automation industry?

ABB is a global leader in power and automation technologies . The company is renowned for its comprehensive portfolio of industrial drives (ACS series), robotics, distributed control systems (800xA), and PLC systems (AC500). ABB products are widely used across power generation, oil and gas, chemical manufacturing, mining, and heavy industry applications .

Q: Are ABB products compatible with each other across different series?

Generally, yes. ABB designs its products with backward and cross-series compatibility in mind. For example, the KVC758A board is specifically designed for ACS5000 drives but is also compatible with ACS800 and ACS880 cabinets . Similarly, ABB's Advant OCS 800xA DCS systems integrate with various ABB drive platforms, allowing for seamless system expansion and upgrades .

Q: What makes ABB products suitable for harsh industrial environments?

ABB products are engineered with industrial-grade specifications including :

·Wide operating temperature ranges (e.g., -40°C to +70°C for the KVC758A)

·High electrical isolation ratings (520 VDC or higher) to protect against voltage transients and ground loops

·Electromagnetic resilience to withstand noisy industrial environments

·Robust construction with protection against dust, moisture, and vibration

·Built-in protection mechanisms including overvoltage and overcurrent safeguards 

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