RLM01 ABB | 800xA PROFIBUS Redundancy Communication Module

ABB RLM01 | 3BDZ000398R1 PROFIBUS Redundancy Link Module

Product Description

The ABB RLM01 (Part No. 3BDZ000398R1) is a PROFIBUS Redundancy Link Module designed for ABB 800xA control systems. It ensures continuous and reliable communication between controllers and field devices by providing dual-channel PROFIBUS redundancy. When one communication path fails, the RLM01 automatically switches to the backup channel without data loss, maintaining uninterrupted system operation.

This module is fully compatible with S900 I/O systems and the AC 800M controller family, ensuring seamless system integration. With its compact DIN-rail mount design, it fits easily into industrial control panels. Engineered for high-availability applications, the RLM01 enhances fault tolerance and communication stability in demanding environments such as power generation, oil & gas, and chemical processing.

 Technical Specifications

FAQ

Q1: What is the purpose of the ABB RLM01 module?
A1: The RLM01 provides redundant PROFIBUS communication, ensuring continuous data transmission even when one communication path fails.

Q2: Is the RLM01 compatible with ABB’s 800xA system?
A2: Yes, it is designed specifically for ABB 800xA, and it integrates seamlessly with S900 I/O and AC 800M controllers.

Q3: How does the module handle communication failures?
A3: It automatically switches to the backup PROFIBUS channel when the active one loses signal integrity, preventing downtime.

Q4: What is the typical installation method?
A4: The RLM01 supports DIN rail or panel mounting, allowing flexible installation within control cabinets.

Q5: What are the shipping and return terms?
A5: All units are brand new and original. We have stock available and usually ship via FEDEX/DHL within 3–10 days, depending on order size.
If there are quality issues, we support returns within 30 days.