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Phone：+86 15383419322Description
The ABB DSRF182AK02 3BSE014078R1 is a high-performance redundancy synchronization module designed for the ABB AC 800M programmable automation controller platform, specifically engineered to enable hot-standby (redundant) CPU configurations over optical fiber. Unlike its copper-based counterpart (e.g., TC520), the DSRF182AK02 uses fiber-optic communication to link two redundant AC 800M controllers—typically PM864A or PM865 units—providing superior noise immunity, electrical isolation, and extended transmission distances up to 2 kilometers.
This module serves as the critical “heartbeat” and real-time data mirroring channel between primary and backup CPUs, ensuring continuous process control even during hardware failure, power loss, or maintenance events. The ABB DSRF182AK02 3BSE014078R1 synchronizes application logic states, I/O data, timers, and internal variables with deterministic timing, enabling failover times typically under 100 milliseconds—well within the tolerance of most mission-critical industrial processes. It is an essential component in applications where electromagnetic interference (EMI), ground potential differences, or physical separation between controllers make copper-based redundancy impractical or unreliable.
Integrated natively into the System 800xA engineering environment, the DSRF182AK02 requires no custom programming—configuration is handled entirely through Control Builder M, making deployment straightforward and robust.
ABB DSRF182AK02 3BSE014078R1
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | DSRF182AK02 3BSE014078R1 |
| Manufacturer | ABB |
| Product Type | Redundancy Synchronization Module (Fiber-Optic) |
| Compatible Controllers | PM864A, PM865 (Redundant AC 800M CPUs) |
| Communication Medium | Duplex Multimode Fiber (62.5/125 µm or 50/125 µm) |
| Wavelength | 850 nm |
| Max Cable Length | Up to 2,000 meters (with appropriate fiber quality) |
| Synchronization Speed | Real-time, cycle-synchronous with CPU scan |
| Failover Time | < 100 ms (typical, depending on application size) |
| Electrical Isolation | Full galvanic isolation via optical fiber (no conductive path) |
| Connector Type | ST (Bayonet-style) or SC (depending on variant; DSRF182AK02 uses ST) |
| Power Consumption | ~3.0 W (via AC 800M backplane) |
| Operating Temperature | 0°C to +60°C |
| Certifications | CE, UL, cUL, IEC 61010-2-201 |
Main Features and Advantages
✅ Long-distance, EMI-immune redundancy:
By using fiber optics, the ABB DSRF182AK02 3BSE014078R1 eliminates ground loops and is completely immune to electromagnetic interference—making it ideal for use near high-voltage switchgear, large motors, or radio transmitters. The 2 km range allows physically separated control rooms (e.g., in different buildings or substations) to maintain synchronized redundancy.
✅ Seamless integration with AC 800M redundancy architecture:
The module works out-of-the-box with ABB’s native redundancy framework. Once configured in Control Builder M, the system automatically handles state mirroring, health monitoring, and failover—no additional software or gateways required.
✅ Enhanced safety and compliance:
In functional safety applications (e.g., IEC 61508 SIL 2/3), continuous availability is a key requirement. The DSRF182AK02 ensures that the safety-related control function remains active during controller transitions, supporting compliance in oil & gas, nuclear, and chemical industries.
✅ Robust diagnostics and status visibility:
System 800xA provides real-time diagnostics for fiber link status, sync errors, and switchover history. LED indicators on the module itself show power, link activity, and fault conditions for quick on-site troubleshooting.
✅ Future-proof infrastructure:
Fiber-based redundancy avoids obsolescence risks associated with legacy copper interfaces and aligns with modern plant-wide Ethernet and optical backbone strategies.
ABB DSRF182AK02 3BSE014078R1
Application Field
The ABB DSRF182AK02 3BSE014078R1 is deployed in mission-critical infrastructure where reliability, distance, or electrical noise preclude standard copper redundancy:
- Power Generation & Transmission: In combined-cycle plants or HV substations, where controllers may be housed in separate bays hundreds of meters apart, and EMI from circuit breakers is intense.
- Oil & Gas Offshore Platforms: Where explosion-proof zones require maximum electrical isolation, and space constraints demand flexible controller placement.
- Chemical & Petrochemical Plants: Supporting SIL-rated emergency shutdown (ESD) and burner management systems that cannot tolerate communication faults.
- Mining & Metals: In electrically noisy environments with large drives and rectifiers, where copper links suffer from signal corruption.
- Water & Wastewater: For regional pump stations linked via fiber, enabling centralized redundant control across a wide geographic area.
Related Products
- ABB PM864A 3BSE032440R1/ PM865 3BSE041440R1: Redundant-capable AC 800M CPUs that pair with DSRF182AK02
- ABB TB511 3BSE002541R1: Terminal base required for mounting theDSRF182AK02 in the I/O rack
- ABB TC520 3BSE001449R1: Copper-based redundancy module (shorter distance, lower cost alternative)
- ABB TK801V 3BSE032445R1: Ethernet communication module often used alongside redundancy setups
- ABB CI854A 3BSE032460R1: PROFIBUS module for remote I/O in redundant architectures
- ABB Fiber Optic Cable Kit (e.g., TK851): Pre-terminated multimode fiber cables with ST connectors for plug-and-play installation
