RB520 3BSE003528R1

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RB520 3BSE003528R1

Product Name

RB520 3BSE003528R1 is an ABB Advant OCS / 800xA Series Remote I/O Communication Module (also referred to as ABB RB520 Profibus DP Master/Slave Module, Industrial Automation Fieldbus Interface Module), a core communication component designed for ABB Advant OCS and 800xA distributed control systems to enable remote I/O data exchange via Profibus DP.

2. Product Description

The RB520 3BSE003528R1 module is a high-reliability industrial fieldbus communication module developed by ABB, specifically engineered for ABB Advant OCS and 800xA automation platforms. Its primary function is to act as a communication bridge between the central DCS controller and remote I/O devices (e.g., sensors, actuators, transducers) in industrial process control systems, enabling high-speed and stable data transmission via the Profibus DP protocol.
Supporting both Profibus DP Master and Slave configurations, the module offers flexible integration options for distributed control architectures—ideal for large-scale industrial sites where field devices are scattered across long distances. It adopts a rugged industrial-grade design with enhanced electromagnetic interference (EMI) resistance and wide environmental adaptability, ensuring reliable operation in harsh industrial environments (e.g., petrochemical plants, power stations, metallurgical facilities) with temperature fluctuations, vibration, and electrical noise.
Seamlessly integrating with ABB’s Control Builder software and 800xA engineering environment, the RB520 module supports easy configuration, status monitoring, and fault diagnosis. It is widely used in process industries such as petrochemical, power generation, metallurgy, and water treatment, serving as a critical link to extend the reach of DCS systems and enable efficient remote control and data acquisition.

3. Product Parameters

Parameter Category Specific Specifications
Product Type ABB Advant OCS / 800xA Series Profibus DP Communication Module
Manufacturer ABB
Compatible Systems ABB Advant OCS Distributed Control System, ABB 800xA Automation Platform
Communication Protocol Profibus DP V1/V2 (EN 50170 Standard), Supports DP Master and Slave Modes
Communication Speed 9.6 kbps – 12 Mbps (Configurable)
Maximum Nodes Supported Up to 126 Slaves (When Configured as DP Master)
Communication Interface 1 x RS485 (Profibus DP), Shielded Twisted Pair (STP) Required
Electrical Isolation Bus Interface Isolation: ≥500Vrms; Module-to-System Isolation: ≥1000Vrms
Power Supply 24V DC ±10%, Redundant Power Input Supported
Power Consumption Typical: 8W; Maximum: 12W
Operating Temperature -20℃ to +60℃ (-4°F to +140°F)
Storage Temperature -40℃ to +85℃ (-40°F to +185°F)
Relative Humidity 5% – 95% RH (Non-condensing, IEC 60068-2-3)
Protection Class IP20 (Designed for Cabinet Mounting)
Dimensions (W×H×D) 140mm × 210mm × 80mm (5.51″ × 8.27″ × 3.15″)
Weight Approximately 0.6kg (1.32 lbs)
Certifications CE, UL, CSA, ATEX, IECEx, EN 50170
Diagnostic Capabilities Bus Fault Detection, Communication Error Monitoring, Power Supply Status Check, Module Self-Diagnosis

4. Specifications

(1) Physical Specifications

  1. Mechanical Design: Modular form factor compatible with ABB Advant OCS/800xA standard mounting racks and TS35 DIN rail, featuring a compact design for space-efficient integration in industrial control cabinets. Reinforced edge connectors ensure reliable electrical contact with the system backplane.
  2. Housing & Material: Flame-retardant industrial-grade plastic shell (UL 94 V-0 rating) with electromagnetic shielding coating, providing mechanical durability and resistance to EMI/RFI interference. The module is equipped with a dust-proof front panel to protect connectors and indicators.
  3. Interface & Indicators: Front-panel LED indicators for power status (PWR), module health (OK), communication status (COM), and bus fault (FAULT); standard Profibus DP (RS485) connector with screw terminals for secure wiring, supporting shielded twisted pair cables for long-distance transmission.

(2) Functional Specifications

  1. Communication Performance
    • Dual-mode operation (Profibus DP Master/Slave) supports flexible system architecture: as a Master, it manages communication with remote I/O slaves; as a Slave, it connects to a higher-level DP Master for data exchange.
    • Configurable communication speed (9.6 kbps – 12 Mbps) adapts to different transmission distance requirements (e.g., 12 Mbps for short distances, 9.6 kbps for distances up to 1200m with repeaters).
    • Supports Profibus DP V1/V2 features, including acyclic data exchange (for parameterization and diagnostics) and cyclic data exchange (for real-time control signals), ensuring compatibility with a wide range of Profibus DP devices.
  2. System Integration & Configuration
    • Seamlessly integrates with ABB Advant OCS/800xA DCS via the system backplane, enabling direct data exchange with central controllers for control logic execution and status monitoring.
    • Configurable via ABB Control Builder M/800xA Engineering Software, allowing users to set communication parameters (speed, mode, node address), map I/O data, and enable diagnostic functions.
    • Supports hot-swappable installation (when used with compatible ABB racks), enabling module replacement without system shutdown—minimizing maintenance downtime.
  3. Reliability & Protection
    • Enhanced electrical isolation (≥500Vrms bus interface isolation) prevents cross-interference between the communication bus and the control system, ensuring signal integrity in harsh industrial environments.
    • Built-in self-diagnostic functions monitor module hardware, power supply, and communication bus status, with fault data logged and transmitted to the DCS for alarms and rapid troubleshooting.
    • Complies with EN 50170 (Profibus DP standard) and IEC 61000-4 EMC standards, ensuring compatibility with global industrial protocols and stable operation in electromagnetic 干扰 environments.

(3) Application Specifications

  1. Applicable Systems: ABB Advant OCS Distributed Control System, ABB 800xA Automation Platform, suitable for distributed control architectures requiring remote I/O communication.
  2. Industry Applications: Petrochemical, power generation (thermal, hydro, nuclear), metallurgy, chemical processing, water treatment, and pulp & paper industries.
  3. Typical Use Cases: Remote I/O Data Acquisition (Temperature/Pressure/Flow Sensors), Actuator Control (Valves/Pumps/Motors), Distributed Process Monitoring, and Factory-Wide Fieldbus Network Int
  4. RB520 3BSE003528R1
  5. egration.
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