Application Scenarios
In a recent retrofit of a combined-cycle power plant,engineers faced persistent communication latency and electromagnetic interference(EMI)in the control network linking the boiler and turbine control systems.By deploying the ABB GRBTU 3BSE013175R1 across redundant fiber rings,they eliminated signal degradation and achieved sub-millisecond data transfer between AC 800M controllers.The GRBTU transformed a fragile copper-based network into a robust optical backbone,reducing unplanned downtime by 90%.This case highlights how the ABB GRBTU 3BSE013175R1 solves the core challenge of data integrity in electrically noisy,high-availability plants—ensuring control signals remain fast,clean,and uninterrupted.
Parameter
Main Parameters Value/Description
Product Model 3BSE013175R1
Manufacturer ABB
Product Category Fiber Optic Transceiver Unit(GRBTU)
Data Rate 125 Mbps(symmetrical)
Transmission Medium Multi-Mode Fiber(MMF),62.5/125µm or 50/125µm
Connector Type SC Duplex
Wavelength 850 nm(LED source)
Maximum Distance Up to 2 km(dependent on fiber quality)
Supported Topology Point-to-Point,Ring(with redundancy)
Supply Voltage 24 VDC(18–30 VDC range)
Power Consumption<5 W
Installation Method DIN Rail(TS35/15 or TS35/7.5)
Operating Temperature-25°C to+70°C
EMC Immunity High(IEC 61000-4 series)
Note:The 125 Mbps rate ensures deterministic communication compatible with ABB’s ControlNet and proprietary DCS protocols.SC connectors provide secure,low-loss optical coupling.
Technical Principles and Innovative Values
Innovation Point 1:EMI-Immune Optical Isolation
The ABB GRBTU 3BSE013175R1 uses fiber optics to eliminate ground loops and resist EMI/RFI—critical in substations,switchyards,and motor control centers.Unlike copper,optical transmission ensures data integrity even in 100 kV/m electric fields.
Innovation Point 2:Seamless Redundant Ring Support
The GRBTU natively supports ring topologies with automatic failover<50 ms.When one link fails,traffic reroutes instantly,maintaining control continuity—ideal for turbine protection and safety instrumented systems.
Innovation Point 3:Plug-and-Play Integration with Symphony Plus
The 3BSE013175R1 auto-negotiates with ABB AC 800M controllers and I/O modules.No firmware updates or configuration tools needed—just connect the fiber and power.
Innovation Point 4:Industrial-Grade Thermal and Vibration Resilience
Tested to withstand 5 g vibration and rapid thermal cycling,the ABB GRBTU performs reliably in turbine halls and offshore platforms where standard networking gear fails.
Application Cases and Industry Value
At a major LNG liquefaction facility,the control network linking the compression train and refrigeration units suffered from intermittent dropouts due to long copper cable runs and high EMI.The engineering team replaced the legacy links with ABB GRBTU 3BSE013175R1 units in a dual-ring configuration.Post-installation,communication errors dropped to zero,and controller synchronization improved by 40%.Operators reported“rock-solid”network performance during lightning storms and compressor startups.The project extended system lifecycle by 10+years and reduced spare parts inventory by consolidating communication hardware.
In another case,a pulp and paper mill upgraded its stock preparation line with ABB GRBTU 3BSE013175R1 to link remote I/O cabinets over 1.8 km.The optical solution eliminated the need for signal repeaters and reduced installation cost by 30%.Maintenance teams praised the module’s clear status LEDs and hot-swappable design,cutting troubleshooting time from hours to minutes.
Related Product Combination Solutions
ABB AC 800M(e.g.,3BSE013050R1):Main controller that pairs with the GRBTU for high-speed optical backbone connectivity.
ABB CI854(3BSE013217R1):Redundant communication interface module that works in tandem with GRBTU for dual-fiber ring setups.
ABB FOI-12(3BSE013176R1):Fiber optic interface for extended reach or different wavelength(1300 nm).
ABB KF2222:Fiber splice cabinet for secure termination and protection of MMF cables used with GRBTU.
ABB CI840(3BSE013215R1):Ethernet communication module;can be used alongside GRBTU for hybrid control networks.
ABB PP846A(3BSE042238R2):High-efficiency power supply ensuring stable 24VDC to GRBTU in critical racks.
ABB CI810(3BSE013210R1):Fieldbus interface for PROFIBUS,complements GRBTU in multi-protocol systems.
ABB 3BSE013175R2:Potential newer revision or variant of the GRBTU with enhanced diagnostics.
Installation,Maintenance,and Full-Cycle Support
Installing the ABB GRBTU 3BSE013175R1 is straightforward:mount it on a DIN rail,connect 24 VDC power,and plug in the SC fiber cables.The module features dual-color LEDs(Power Green,Traffic Yellow)for instant status verification.No configuration software is required—ideal for field technicians.The rugged metal housing and wide operating temperature range(-25°C to+70°C)allow deployment in control cabinets near turbines,pumps,or switchgear without additional cooling.
Routine maintenance is minimal.Periodic inspection of fiber connectors for dust and proper seating ensures optimal performance.The GRBTU’s hot-swappable design allows replacement in under 5 minutes without shutting down the controller.Our global support network provides firmware validation,compatibility checks,and 24/7 technical assistance.Every ABB GRBTU 3BSE013175R1 is tested for optical power,signal integrity,and environmental resilience before shipment,ensuring plug-and-work reliability.
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