

RLM01 3BDZ000398R1 | ABB | PROFIBUS Redundancy Link Module
The ABB RLM01 is a redundancy link module for ABB platforms. Type Designation: RLM01 | Product ID: 3BDZ000398R1 | Catalog Description: PROFIBUS Redundancy Link Module. Factory-sealed, live-rack tested, 48-hour burn-in. 12-month warranty. Ships within 24 hours.
Technical Specifications
| RLM01 3BDZ000398R1 | is a PROFIBUS Redundancy Link Module designed to enhance communication reliability in ABB automation systems. It provides seamless redundancy for Profibus-DP networks, ensuring continuous operation and secure data exchange. |
|---|---|
| Manufacturer | ABB |
| Type Designation | RLM01 |
| Product ID | 3BDZ000398R1 |
| Catalog Description | PROFIBUS Redundancy Link Module |
| Product Type | Communication Module |
| Protocol Type | Profibus-DP |
| Number of Channels | 1 |
| Communication Speed | N/A kbit/s (redundancy link, not speed-dependent) |
| Net Weight | 0.46 kg |
| Gross Volume | 0 m³ |
| Customs Tariff Number | 85389091 |
| Condition | New, spare part for ABB automation systems |
| Redundancy Support | Provides reliable Profibus-DP communication with automatic redundancy switching. |
| Continuous Operation | Ensures uninterrupted data exchange even in case of primary link failure. |
| System Integration | Designed for ABB automation systems requiring Profibus-DP redundancy. |
| Compact Design | Lightweight at 0.46 kg, easy to install in communication racks. |
| Industrial Reliability | Built for demanding automation environments with robust performance. |
| Ease of Use | Plug-and-play module simplifies installation and maintenance. |
| Model / SKU | RLM01 |
Ships within 24 hours | 12-Month Warranty | Worldwide Delivery
Why I/O Module Configuration Matters
The ABB RLM01 is an I/O module that handles signal conversion between field devices and the control system. What makes ordering a replacement tricky is that ABB uses configuration codes in their part numbers — the base model might be the same, but suffix codes can change the input voltage range, output type, channel count, isolation rating, or communication protocol. Two modules that look identical from the outside can behave completely differently when plugged into the chassis.
Before ordering, verify the full part number on your existing module label. Do not rely on memory or a handwritten note from the last maintenance shift. Take a clear photo and send it to us if you are unsure — our engineers can cross-reference the part number and confirm compatibility, usually within 4 business hours.
Every I/O module we ship is factory-sealed and functionally tested on a live ABB rack: all channels exercised with calibrated signal sources, communication verified, 48-hour burn-in at 55°C. Printed test report included. 12-month warranty. Worldwide shipping within 24 hours.
Compatible Parts — Same System
These modules share the same system family as the RLM01. Commonly ordered together for complete rack builds or spare parts kits.
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