Product Details
Configured for PROFIBUS line redundancy in industrial communication architectures, the ABB RLM02 3BSE091723R1 (RLM02 Communication Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | RLM02 3BSE091723R1 |
| Brand | ABB |
| Origin | Standard ABB Manufacturing |
| Weight | 0.46 kg |
| Dimensions | 175.5 mm x 103.5 mm x 90 mm |
| Operating Temp | 0 to +60 deg C (Standard Industrial Range) |
| Power Consumption | 24 VDC Auxiliary Supply Input |
| Interface Type | RS485 Physical Layer |
| Bus Protocol | PROFIBUS DP |
| Line Conversion | 1 Non-Redundant Line to 2 Redundant RS485 Lines (and vice versa) |
| Environmental Compliance | EU Directive 2011/65/EU (RoHS) |
| Marine Certification | Germanischer Lloyd (GL) Cat. A, B, C, D (Requires 3BDZ000397R1 Filter) |
Backplane Bus Communication Velocity & Deterministic Networks
The RLM02 converts a single non-redundant PROFIBUS line into two parallel, line-redundant RS485 channels to ensure deterministic networks without data loss. Internal signal-shaping circuits process incoming serial frames to preserve backplane bus communication velocity and transmission waveform integrity. Automatic line monitoring maintains continuous bus availability, switching copper physical paths upon detecting line errors or signal attenuation. Full firmware flash compatibility ensures direct integration with standard PROFIBUS master and slave nodes across System 800xA and S800 I/O architectures.
Frequently Asked Questions
Q: What is required to satisfy Germanischer Lloyd (GL) marine certification for the RLM02 module?
A: Marine certification under GL Categories A, B, C, and D requires the installation of an external power supply filter (ABB Part Number 3BDZ000397R1) on the incoming power feed.
Q: How does the RLM02 manage PROFIBUS signal conversion?
A: The module operates bi-directionally on the RS485 physical layer, converting one standard PROFIBUS channel into two redundant PROFIBUS RS485 lines and vice versa without protocol translation delays.
Field Installation Guidelines
- Mount the module securely on a grounded DIN rail inside a protective cabinet enclosure.
- Install the 3BDZ000397R1 power supply filter in series with the incoming 24 VDC supply lines when operating in GL-certified installations.
- Ensure both redundant PROFIBUS RS485 lines are terminated with active 120 ohm bus termination resistors at both end nodes.
- Route redundant RS485 communication cables through separate physical conduits to maintain physical path isolation against localized physical damage.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Redundant Automation Systems: Core Architecture, Business Value, and Technical Advantages
Unplanned downtime poses a major financial threat to process manufacturing. To prevent costly interruptions, engineers deploy redundant PLC and DCS architectures that ensure continuous operation when hardware fails. This technical guide explores redundancy principles, critical system nodes, and real-world scenarios.
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.