ABB DLM01 Digital I/O Communication Module for Freelance 2000 DCS(XIONGBA)

ABB DLM01 Digital I/O Communication Module for Freelance 2000 DCS(XIONGBA)

Brand Model: ABB DLM01
Product Name: Freelance 2000 Digital Input/Output Communication Module
Warranty: 1 year
Size: 125 mm (depth) × 119 mm (height) × 45 mm (width)
Weight: 0.22 kg
Origin: Sweden
Inventory: Spot
Delivery Time: 3 days after payment

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Description

Product Overview

The ABB DLM01 is a high-performance digital input/output (I/O) communication module designed for ABB’s Freelance 2000 distributed control system (DCS). Engineered to bridge field devices with higher-level controllers, the DLM01 consolidates 16-channel digital inputs and 16-channel digital outputs into a single compact unit, supporting 24 VDC signal compatibility with galvanic isolation (500 VAC dielectric strength). Its modular architecture enables seamless integration with Freelance 2000’s redundant control networks, making it ideal for mission-critical applications in power generation, chemical processing, and oil & gas facilities.

 

As a core component of the Freelance 2000 ecosystem, the DLM01 features hot-swappable functionality and real-time diagnostics, including channel-specific LED indicators and fault reporting via PROFIBUS DP or Modbus TCP protocols. The module’s HESG440355R3 revision incorporates enhanced surge protection and noise immunity, ensuring reliable operation in high-interference environments like steel mills or offshore platforms. Its dual isolated groups (8 inputs + 8 outputs per group) allow segregation of safety-critical and non-critical signals, minimizing cross-interference and improving system resilience.

Technical Specifications

Parameter Name Parameter Value
Product Model DLM01
Manufacturer ABB
Product Type Digital I/O Communication Module for Freelance 2000 DCS
I/O Channels 16 inputs + 16 outputs (2 isolated groups)
Signal Type 24 VDC (input: current-sinking NPN; output: current-source PNP)
Input Voltage Range 18–30 VDC (logic “1”), ≤5 VDC (logic “0”)
Output Voltage Range 18–30 VDC (logic “1”), ≤5 VDC (logic “0”)
Response Time ≤1 ms (filter disabled)
Galvanic Isolation 500 VAC between channels/groups and backplane
Filtering Software-selectable (2, 4, 8, 16, 32 ms)
Power Supply 24 VDC (via Freelance 2000 backplane)
Power Consumption ≤3.5 W
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)
Communication Protocol PROFIBUS DP, Modbus TCP, Ethernet/IP

Main Features and Advantages

Bidirectional Signal Management: The 16-in/16-out configuration reduces hardware complexity by consolidating input and output signals into a single module, ideal for applications requiring bidirectional control (e.g., robotic welding cells or packaging lines). Dual isolated groups enable segregation of safety-critical outputs from monitoring inputs, ensuring fail-safe operation in SIL2-rated systems.

 

Enhanced Diagnostic Capabilities: Real-time monitoring of channel status, short-circuit detection, and transient voltage suppression (TVS) diodes protect against surges from inductive loads. The HESG440355R3 revision improves surge tolerance by 30% compared to earlier versions, extending module lifespan in high-risk environments like petrochemical plants.

 

Modular System Compatibility: Works seamlessly with ABB’s TU840 termination units (screw/spring terminals) and BM820 bus modules, supporting scalable configurations from small panels to multi-rack systems. Hot-swappable design ensures maintenance without system downtime, critical for 24/7 operations in power plants or wastewater treatment facilities.

 

Noise Immunity & Reliability: Configurable input filtering and groupwise isolation mitigate EMI/RFI from welding equipment or high-voltage motors. Certified for hazardous areas (ATEX/IECEx) and marine applications, the DLM01 delivers stable performance in oil refineries, offshore platforms, and other challenging environments.

Application Areas

Power Generation:

 

  • Thermal Power Plants: Controls turbine governor actuators (outputs) and monitors generator breaker statuses (inputs), integrating with ABB’s REL500 protective relays for grid stability.
  • Hydroelectric Facilities: Manages penstock valve actuators (outputs) and reads water level sensors (inputs), ensuring efficient load balancing.

 

Process Industries:

 

  • Chemical & Petrochemical: Regulates reactor agitator motors (outputs) and tracks pressure switch statuses (inputs) in distillation columns, supporting SIL2 safety systems when paired with ABB’s Safety Builder M.
  • Pharmaceutical Plants: Controls sterilizer chamber door actuators (outputs) and monitors temperature sensors (inputs), ensuring GMP compliance for batch processes.

 

Manufacturing Automation:

 

  • Automotive Assembly: Manages robotic arm gripper actuators (outputs) and conveyor belt proximity sensors (inputs) in paint shops, integrating with ABB’s RobotStudio for synchronized motion control.
  • Food & Beverage: Controls filling machine solenoid valves (outputs) and product presence sensors (inputs) in hygienic environments, compliant with IP65 standards.

Related Products

  1. ABB TU840 (3BSE008429R1): 32-channel terminal unit for quick wiring and hot-swap replacement with DLM01.
  2. ABB BM820 (3BSE018159R1): Bus module enabling connection to AC 800M controllers, supports up to 16 modules per rack.
  3. ABB DI840 (3BSE020836R1): 32-channel digital input module for 24 VDC, similar architecture to DLM01.
  4. ABB AC 800M PM866 (3BSE018270R1): Redundant CPU for large Freelance 2000 systems, compatible with DLM01 for high-speed control.
  5. ABB Control Builder M Software: Configures DLM01 filtering, diagnostics, and communication parameters (Version 3.2 or higher).

Installation & Maintenance

Installation:

 

  • Mount the DLM01 on a DIN rail with ≥50 mm air clearance for cooling.
  • Connect field wires to the TU840 terminal block, following NPN (input) and PNP (output) wiring diagrams (e.g., common cathode/anode configurations).
  • Link the module to the Freelance 2000 bus via a bus cable, and configure I/O signals using Control Builder M (set filtering time based on signal noise level, e.g., 8 ms for machinery with motor interference).

 

Maintenance:

 

  • Use ABB’s System 800xA Condition Monitoring to track module health metrics (e.g., channel error rates, power consumption trends).
  • In dusty environments, clean the module with compressed air (≤0.6 bar) every quarter to prevent dust accumulation.
  • For hot-swapping, ensure the TU840 is disconnected from field wiring before replacing the DLM01 to avoid transient currents.

Product Guarantee

The DLM01 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 large projects, ABB offers Commissioning Services to ensure optimal configuration and integration with existing systems.
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