+86 18030182217
+86 18030182217
sandydcsplc@gmail.com
Description
Product Overview
The ABB DLM02 is a high-reliability redundant link module designed for ABB’s Freelance 2000 distributed control system (DCS), serving as the critical backbone for connecting process stations, expansion I/O units, and higher-level controllers. Unlike standard communication modules, the DLM02 features dual redundant DPW power supply inputs (24 VDC) with automatic failover, ensuring continuous operation even in power-disturbed environments like offshore platforms or petrochemical plants. Its microprocessor-based monitoring system tracks module temperature, power status, and bus communication health, providing real-time diagnostics via integrated LED indicators and fault reporting through PROFIBUS DP or Modbus TCP protocols.
As part of the Freelance 2000 ecosystem, the DLM02 supports seamless integration with ABB’s TU840 termination units and BM820 bus modules, enabling scalable configurations from small-scale automation systems to large multi-rack installations. Its hot-swappable design allows field replacement without system downtime, a critical advantage for 24/7 operations in power generation or wastewater treatment facilities. The HESG440355R3 revision enhances surge protection by 30% compared to earlier versions, making it suitable for high-interference environments like steel mills or mining operations.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | DLM02 |
| Manufacturer | ABB |
| Product Type | Redundant Link Module for Freelance 2000 DCS |
| Power Supply | Dual 24 VDC inputs (DPW), 1.2 A max per input |
| Power Consumption | ≤3.8 W |
| Communication Protocol | PROFIBUS DP, Modbus TCP, Ethernet/IP |
| Redundancy Features | Automatic power failover, dual bus communication paths |
| Diagnostics | Real-time temperature monitoring, voltage supervision, bus activity indicators |
| Operating Temperature | -20°C to +60°C (with derating up to +70°C for short periods) |
| Certifications | CE, UL, CSA, ATEX Zone 2 (gas), IECEx, marine approvals (ABS, DNV, GL) |
| Physical Dimensions | 184.5 mm × 139.5 mm × 76.5 mm (depth × height × width) |
| Weight | 0.55 kg |
| Mounting | DIN rail or panel-mountable |
| Bus Expansion | Supports up to 16 I/O modules per rack via BM820 bus modules |
Main Features and Advantages
Redundant Power Architecture: The DLM02’s dual DPW inputs ensure uninterrupted operation by automatically switching to the secondary power source if the primary fails, critical for maintaining control in oil refineries or nuclear power plants. This redundancy eliminates single points of failure, aligning with SIL2 safety requirements for process industries.
Advanced Monitoring & Fault Tolerance: Built-in temperature sensors and voltage supervision circuits detect 异常 conditions (e.g., overheating, brownouts) and trigger alerts via the DCS control room. The module’s dual isolated bus paths prevent data corruption from EMI/RFI interference, ensuring reliable communication in welding shops or high-voltage substations.
Scalable System Integration: Compatible with ABB’s S800 I/O platform, the DLM02 enables seamless integration of digital/analog I/O modules, motor control centers, and third-party devices. Its hot-swappable design allows field technicians to replace faulty modules without disrupting ongoing processes, reducing mean time to repair (MTTR) by 50% compared to non-hot-swappable alternatives.
Harsh Environment Resilience: Certified for hazardous areas (ATEX/IECEx) and marine applications, the DLM02 withstands extreme temperatures, humidity, and vibrations. The HESG440355R3 revision’s enhanced surge protection (8 kV ESD, 2.5 kV surge) extends module lifespan in high-risk environments like chemical plants or offshore rigs.
Application Areas
Power Generation:
- Thermal Power Plants: Connects boiler control systems (e.g., ABB’s REL500 protective relays) to turbine governors, ensuring grid stability during load fluctuations.
- Renewable Energy: Manages solar inverter clusters and wind farm SCADA systems, providing redundant communication for remote monitoring and predictive maintenance.
Process Industries:
- Petrochemical Refineries: Integrates distributed control systems for distillation columns and reactor units, supporting SIL2 safety loops when paired with ABB’s Safety Builder M.
- Pharmaceutical Manufacturing: Controls sterile filling lines and cleanroom HVAC systems, ensuring compliance with FDA/GMP standards through redundant I/O communication.
Industrial Automation:
- Automotive Assembly: Synchronizes robotic welding cells (e.g., ABB’s RobotStudio) with conveyor systems, minimizing downtime through real-time status updates.
- Metallurgy: Monitors blast furnace temperature/pressure sensors and controls slag handling equipment in steel mills, leveraging dual bus redundancy for critical operations.
Related Products
- ABB DLM01 (3BSE018171R1): Non-redundant link module for basic Freelance 2000 systems, lacks dual power inputs and temperature monitoring.
- ABB BM820 (3BSE018159R1): Bus module enabling connection to AC 800M controllers, supports up to 16 modules per rack.
- ABB TU840 (3BSE008429R1): 32-channel terminal unit for quick wiring and hot-swap replacement with DLM02.
- ABB AC 800M PM866 (3BSE018270R1): Redundant CPU module for large-scale Freelance 2000 systems, compatible with DLM02 for high-speed control.
- ABB Control Builder M Software: Configures DLM02 redundancy settings, diagnostics, and bus parameters (Version 3.2 or higher).
Installation & Maintenance
Installation:
- Mount the DLM02 on a DIN rail with ≥50 mm air clearance for cooling.
- Connect dual 24 VDC power supplies to the DPW terminals (Terminal 1: Primary, Terminal 2: Redundant), ensuring polarity alignment.
- Link the module to the Freelance 2000 bus via a BK820 bus cable, and configure redundancy settings using Control Builder M (enable automatic failover and set bus communication parameters).
Maintenance:
- Use ABB’s System 800xA Condition Monitoring to track module health metrics (e.g., temperature trends, power consumption).
- In dusty environments, clean the module’s ventilation slots with compressed air (≤0.6 bar) every 6 months to prevent overheating.
- For hot-swapping, ensure the TU840 terminal block is disconnected from field wiring before replacing the DLM02 to avoid transient currents.
Product Guarantee
The DLM02 is covered by ABB’s standard 1-year warranty against manufacturing defects. It complies with global safety and environmental standards (ATEX, IECEx, marine certifications), making it suitable for hazardous areas and offshore applications. ABB’s Service Portal offers firmware updates (latest revision R1.2 as of 2025) and technical bulletins, while regional service centers provide 24/7 support for urgent issues. For mission-critical projects, ABB offers Commissioning Services to ensure optimal redundancy configuration and integration with existing systems.
With its redundant power design, advanced diagnostics, and rugged construction, the DLM02 is engineered for industrial applications requiring continuous, reliable communication in demanding environments.
HS:7326909000
Contact info
- WhatsApp: +86 18030182217
- Email: sandydcsplc@gmail.com
- Phone: +86 18030182217
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