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Phone：+86 17062388866Description
The ABB PFEA112-20 3BSE030369R0020 is a fault-tolerant PROFIBUS DP-V1 redundant master module designed for ABB’s AC 800M controllers, delivering zero-downtime communication in mission-critical industrial automation systems. As a hardened evolution of the PFEA111 series, this module integrates dual-channel redundancy with seamless switchover (<2>PFEA112-20 3BSE030369R0020 synchronizes two independent PROFIBUS segments (up to 126 devices each) at 12 Mbps, featuring galvanic isolation (1,500 VDC) and IEC 61800-3 EMI immunity. Its integration with ABB’s 800xA DCS enables real-time network diagnostics and PROFIsafe compliance for SIL 3 safety systems, making it indispensable for applications where communication resilience directly impacts operational safety and productivity.
ABB PFEA112-20 3BSE030369R0020
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | PFEA112-20 3BSE030369R0020 |
| Manufacturer | ABB |
| Product Type | Redundant PROFIBUS DP-V1 Master Module |
| Redundancy Protocol | IEC 62439-6 (HSR/PRP support) |
| Switchover Time | <2> |
| Data Rate | 9.6 kbps – 12 Mbps (auto-negotiating) |
| Isolation | 1,500 VDC (field-to-backplane) |
| Port Configuration | 4 × 9-pin D-Sub (2 primary + 2 backup) |
| Max Segments | 2 independent PROFIBUS networks |
| Cyclic Data | 488 bytes input/output (dual-channel) |
| Power Supply | 5 VDC via AC 800M backplane |
| Power Consumption | 2.1 W (max, both channels active) |
| Operating Temperature | -40°C to +85°C |
| Vibration/Shock | 5 g / 15 g (IEC 60068-2-27/64) |
| Certifications | ATEX/IECEx Zone 1, UL Class I Div 2, DNV-GL, SIL 3 |
Main Features and Advantages
Uninterrupted mission-critical control: The PFEA112-20 3BSE030369R0020 achieves <2>
Advanced diagnostics and cybersecurity: Integrated PROFIBUS Health Monitor scans both segments every 100 ms, detecting signal degradation before failures occur. Hardware-level security includes FIPS 140-2 compliant encryption for firmware updates and role-based access via ABB’s Control Builder. PROFIsafe integration enables safety instrumented functions (SIF) without additional safety relays.
Extreme environment resilience: Military-grade components withstand temperature extremes (-40°C cold start, +85°C sustained). Conformal coating (IPC-CC-830B) protects against humidity, H₂S, and dust. Shock-resistant design (15 g peak) suits mobile equipment like crane systems and drilling rigs.
Application Field
The ABB PFEA112-20 3BSE030369R0020 is deployed where network failure is unacceptable:
Power Generation: Controls turbine protection systems in nuclear plants, using SIL 3 redundancy to prevent catastrophic trips.
Oil & Gas: Manages subsea blowout preventers (BOPs) on offshore rigs, leveraging DNV-GL certification for marine environments.
Pharmaceuticals: Ensures 21 CFR Part 11 compliance in sterile filling lines with audit-trailed redundant communications.
Transportation: Synchronizes tunnel ventilation fans in rail systems, maintaining airflow during primary network faults.
Mining: Operates conveyor safety brakes in underground coal mines, certified for ATEX Zone 1 methane-rich atmospheres.
Related Products
PFEA111-20 3BSE050090R20 – Non-redundant PROFIBUS master for standard applications.
PM865AK01 3BSE076859R1 – AC 800M controller hosting the PFEA112-20.
CI871 3BSE056767R1 – Ethernet/IP interface for hybrid network architectures.
SA801F 3BSE069297R1 – PROFIBUS segment coupler with galvanic isolation.
SD823 3BSE018742R1 – Redundant remote I/O station for slave device expansion.
TA529 3BSE011183R1 – Dual-channel termination board for shielded cabling.
ABB PFEA112-20 3BSE030369R0020
Installation and Maintenance
Pre-installation preparation: Validate controller redundancy licensing in Control Builder. Use ABB-recommended M12 connectors (A-coded) for vibration-prone environments. Implement independent fiber-optic paths for HSR/PRP networks to avoid common failure points.
Maintenance recommendations: Test switchover functionality quarterly via forced failover commands. Monitor “Channel Skew” metrics (<100>
