Siemens 6ES7412-2XJ05-0AB0 CPU 412-5H S7-400
Siemens 6ES7412-2XJ05-0AB0 CPU 412-5H S7-400
Manufacturer: Siemens
Product No.: 6ES7412-2XJ05-0AB0
Condition:1000 em estoque
Product Type: PLC CPUs
Product Origin: 4019169148559
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
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Siemens 6ES7412-2XJ05-0AB0 CPU 412-5H
High-Availability Redundant CPU for SIMATIC S7-400 Fault-Tolerant Systems
The Siemens 6ES7412-2XJ05-0AB0 is a fault-tolerant CPU 412-5H designed for mission-critical S7-400H redundant automation systems. This high-availability processor ensures zero-downtime operation in industries where system failures can result in catastrophic consequences—oil & gas, power generation, chemical processing, and pharmaceutical manufacturing.
🛡️ Why Fault-Tolerant CPUs Matter
In critical infrastructure, a single CPU failure can cause:
- ❌ Production shutdowns costing $100K+ per hour
- ❌ Safety incidents in hazardous processes
- ❌ Regulatory violations and compliance penalties
- ❌ Loss of customer trust and brand reputation
The CPU 412-5H Solution:
- ✅ Bumpless Switchover – Automatic failover in <100ms without process interruption
- ✅ Hot-Swap Capability – Replace faulty CPU without stopping production
- ✅ Synchronized Operation – Dual CPUs run identical programs in lockstep
- ✅ Comprehensive Diagnostics – Real-time health monitoring and predictive maintenance
- ✅ 99.999% Uptime – Proven reliability in 24/7 continuous operations
📋 Technical Specifications
| Order Number | 6ES7412-2XJ05-0AB0 |
| CPU Type | CPU 412-5H (Fault-Tolerant) |
| System | SIMATIC S7-400H (Redundant) |
| Work Memory | 512 KB (256 KB code + 256 KB data) |
| Load Memory | 8 MB (expandable with memory card) |
| Processing Speed | 0.1 ms per 1000 binary instructions |
| I/O Capacity | Max 65,536 digital I/O, 4,096 analog I/O |
| Process Image | 16 KB inputs + 16 KB outputs |
| Bit Memory | 16 KB |
| Timers/Counters | 2,048 S7 timers, 2,048 S7 counters |
| Data Blocks | Max 8,192 DBs (64 KB each) |
| Interfaces | 1× MPI/DP (12 Mbps), 1× Profibus DP master |
| Redundancy | H-system (dual CPU configuration) |
| Switchover Time | <100 ms (bumpless) |
| Operating Temp | 0°C to +60°C (horizontal mounting) |
| Power Consumption | Typ. 10W @ 5V DC |
| Dimensions (W×H×D) | 80mm × 290mm × 219mm (2 slots) |
| Weight | Approx. 1 kg |
| Certifications | CE, UL, cULus, FM, ATEX, IECEx, SIL 3 |
| MTBF | >250,000 hours |
🔄 How S7-400H Redundancy Works
System Architecture
An S7-400H system consists of:
- 2× CPU 412-5H modules (this product) – Primary and standby CPUs
- 2× Power supplies – Redundant PS 407 units
- 2× Sync modules – Fiber optic synchronization links
- Redundant I/O – Dual-channel input/output modules
Operating Modes
Normal Operation: Both CPUs execute the same program simultaneously. Outputs are controlled by the primary CPU while the standby CPU monitors and stays synchronized.
Failover Event: If the primary CPU fails (hardware fault, power loss, watchdog timeout), the standby CPU takes over control within 100ms without interrupting the process.
Hot-Swap Maintenance: Replace the faulty CPU while the system continues running. The new CPU automatically synchronizes with the active CPU.
🏭 Mission-Critical Applications
Oil & Gas Production
Control offshore platforms, pipeline compressor stations, and refinery processes where unplanned shutdowns can cost millions and create safety hazards.
Power Generation
Manage turbine control, boiler automation, and grid synchronization in coal, gas, nuclear, and renewable energy plants requiring 99.999% availability.
Chemical & Petrochemical
Operate continuous batch reactors, distillation columns, and hazardous material handling systems with SIL 3 safety integrity.
Pharmaceutical Manufacturing
Ensure GMP compliance in sterile production environments where batch failures result in product loss and regulatory violations.
Water & Wastewater
Maintain municipal treatment plants serving millions of residents where system downtime impacts public health and safety.
📊 CPU Performance Comparison
| Feature | CPU 412-5H (This Product) | CPU 414-5H | CPU 417-5H |
|---|---|---|---|
| Work Memory | 512 KB | 1.4 MB | 30 MB |
| Processing Speed | 0.1 ms/1K inst | 0.05 ms/1K inst | 0.02 ms/1K inst |
| Max I/O Points | 65,536 | 65,536 | 65,536 |
| Data Blocks | 8,192 | 8,192 | 16,384 |
| Best For | Medium complexity | Large systems | Very large systems |
| Typical Price | 💰💰💰 | 💰💰💰💰 | 💰💰💰💰💰 |
💡 Selection Guide: Choose CPU 412-5H for medium-complexity redundant systems (up to 2,000 I/O points). Upgrade to CPU 414-5H or 417-5H for larger programs or faster cycle times.
🛠️ Installation & Configuration
Hardware Requirements
- 2× Siemens 6ES7412-2XJ05-0AB0 CPU modules (this product)
- 2× S7-400 UR2-H racks (6ES7400-2JA00-0AA0)
- 2× PS 407 redundant power supplies
- 2× Sync modules with fiber optic cables
- Redundant I/O modules (ET 200M or S7-400 I/O)
Configuration Steps
- Hardware Setup – Install CPUs in Slot 2 of each UR2-H rack, connect sync cables
- STEP 7 Configuration – Create H-system project, assign CPU addresses, configure redundancy parameters
- Program Download – Download identical programs to both CPUs
- Synchronization – Verify both CPUs enter RUN-Redundant mode
- Testing – Simulate CPU failure to verify bumpless switchover
💻 Programming Considerations
Supported Languages
- LAD (Ladder Logic)
- FBD (Function Block Diagram)
- STL (Statement List)
- SCL (Structured Control Language)
- S7-Graph (Sequential Control)
- S7-HiGraph (State Machines)
Redundancy-Specific Features
- System Functions: SFC 90 (H_CTRL) for redundancy control
- Diagnostics: SFC 51 (RDSYSST) for system status monitoring
- Synchronization: Automatic data consistency between CPUs
- Switchover Events: OB 72 (CPU redundancy error) handling
🛡️ Authenticity & Quality
⚠️ Counterfeit CPU Risks
Fake CPUs in critical systems can cause:
- 🔥 Catastrophic failures in hazardous processes
- ⚡ Unpredictable behavior during failover events
- 💥 Data corruption and process upsets
- 🚫 Voided insurance and regulatory non-compliance
- ⚖️ Legal liability for safety incidents
✅ Industrial Control Hub Guarantee
- 🔒 100% Genuine Siemens – Factory-sealed with holographic labels
- 📜 Full Traceability – Serial numbers and manufacturing certificates
- 🌍 Authorized Distributor – Verify at Siemens Industry Mall
- 🛡️ 24-Month Warranty – Global manufacturer warranty coverage
- 📦 ESD Protection – Anti-static packaging prevents component damage
- 🎓 Technical Support – Pre-sales consultation and post-purchase assistance
📦 Package Contents
- 1× Siemens 6ES7412-2XJ05-0AB0 CPU 412-5H module
- Integrated MPI/DP and Profibus interfaces
- Product documentation and certificate of conformity
Note: Redundant CPU, racks, power supplies, sync modules, and I/O modules must be ordered separately for complete H-system.
🤝 Technical Support
- 📧 System Design Consultation – Email us your redundancy requirements for architecture recommendations
- 📚 Documentation Library – Access Siemens manuals, configuration guides, and programming examples
- 🎓 Training Resources – S7-400H configuration tutorials and best practices
- 🔧 Commissioning Support – Remote assistance for redundancy testing and validation
- 🔄 30-Day Returns – Unused CPUs in original packaging
❓ FAQ
Q: Can I use CPU 412-5H in a non-redundant S7-400 system?
A: No, the -5H suffix indicates H-system (redundant) only. For standard S7-400, use CPU 412-2 (6ES7412-2XK07-0AB0).
Q: What's the difference between CPU 412-5H and CPU 412-2?
A: CPU 412-5H supports redundancy (H-system), while CPU 412-2 is for standard single-CPU systems. Performance is similar.
Q: Do I need two of these CPUs for redundancy?
A: Yes, S7-400H requires two identical CPUs, two racks, two power supplies, and sync modules.
Q: Can I mix CPU 412-5H with CPU 414-5H in the same H-system?
A: No, both CPUs in an H-system must be identical models with the same firmware version.
Q: What happens if both CPUs fail simultaneously?
A: Extremely rare (probability <0.001%). System enters STOP mode. Redundant power and proper maintenance minimize this risk.
Q: Is this CPU compatible with TIA Portal?
A: Yes, but requires TIA Portal V13 or higher with S7-400H license. STEP 7 V5.x also supported.
Product Description
Siemens 6ES7412-2XJ05-0AB0 CPU 412-5H
High-Availability Redundant CPU for SIMATIC S7-400 Fault-Tolerant Systems
The Siemens 6ES7412-2XJ05-0AB0 is a fault-tolerant CPU 412-5H designed for mission-critical S7-400H redundant automation systems. This high-availability processor ensures zero-downtime operation in industries where system failures can result in catastrophic consequences—oil & gas, power generation, chemical processing, and pharmaceutical manufacturing.
🛡️ Why Fault-Tolerant CPUs Matter
In critical infrastructure, a single CPU failure can cause:
- ❌ Production shutdowns costing $100K+ per hour
- ❌ Safety incidents in hazardous processes
- ❌ Regulatory violations and compliance penalties
- ❌ Loss of customer trust and brand reputation
The CPU 412-5H Solution:
- ✅ Bumpless Switchover – Automatic failover in <100ms without process interruption
- ✅ Hot-Swap Capability – Replace faulty CPU without stopping production
- ✅ Synchronized Operation – Dual CPUs run identical programs in lockstep
- ✅ Comprehensive Diagnostics – Real-time health monitoring and predictive maintenance
- ✅ 99.999% Uptime – Proven reliability in 24/7 continuous operations
📋 Technical Specifications
| Order Number | 6ES7412-2XJ05-0AB0 |
| CPU Type | CPU 412-5H (Fault-Tolerant) |
| System | SIMATIC S7-400H (Redundant) |
| Work Memory | 512 KB (256 KB code + 256 KB data) |
| Load Memory | 8 MB (expandable with memory card) |
| Processing Speed | 0.1 ms per 1000 binary instructions |
| I/O Capacity | Max 65,536 digital I/O, 4,096 analog I/O |
| Process Image | 16 KB inputs + 16 KB outputs |
| Bit Memory | 16 KB |
| Timers/Counters | 2,048 S7 timers, 2,048 S7 counters |
| Data Blocks | Max 8,192 DBs (64 KB each) |
| Interfaces | 1× MPI/DP (12 Mbps), 1× Profibus DP master |
| Redundancy | H-system (dual CPU configuration) |
| Switchover Time | <100 ms (bumpless) |
| Operating Temp | 0°C to +60°C (horizontal mounting) |
| Power Consumption | Typ. 10W @ 5V DC |
| Dimensions (W×H×D) | 80mm × 290mm × 219mm (2 slots) |
| Weight | Approx. 1 kg |
| Certifications | CE, UL, cULus, FM, ATEX, IECEx, SIL 3 |
| MTBF | >250,000 hours |
🔄 How S7-400H Redundancy Works
System Architecture
An S7-400H system consists of:
- 2× CPU 412-5H modules (this product) – Primary and standby CPUs
- 2× Power supplies – Redundant PS 407 units
- 2× Sync modules – Fiber optic synchronization links
- Redundant I/O – Dual-channel input/output modules
Operating Modes
Normal Operation: Both CPUs execute the same program simultaneously. Outputs are controlled by the primary CPU while the standby CPU monitors and stays synchronized.
Failover Event: If the primary CPU fails (hardware fault, power loss, watchdog timeout), the standby CPU takes over control within 100ms without interrupting the process.
Hot-Swap Maintenance: Replace the faulty CPU while the system continues running. The new CPU automatically synchronizes with the active CPU.
🏭 Mission-Critical Applications
Oil & Gas Production
Control offshore platforms, pipeline compressor stations, and refinery processes where unplanned shutdowns can cost millions and create safety hazards.
Power Generation
Manage turbine control, boiler automation, and grid synchronization in coal, gas, nuclear, and renewable energy plants requiring 99.999% availability.
Chemical & Petrochemical
Operate continuous batch reactors, distillation columns, and hazardous material handling systems with SIL 3 safety integrity.
Pharmaceutical Manufacturing
Ensure GMP compliance in sterile production environments where batch failures result in product loss and regulatory violations.
Water & Wastewater
Maintain municipal treatment plants serving millions of residents where system downtime impacts public health and safety.
📊 CPU Performance Comparison
| Feature | CPU 412-5H (This Product) | CPU 414-5H | CPU 417-5H |
|---|---|---|---|
| Work Memory | 512 KB | 1.4 MB | 30 MB |
| Processing Speed | 0.1 ms/1K inst | 0.05 ms/1K inst | 0.02 ms/1K inst |
| Max I/O Points | 65,536 | 65,536 | 65,536 |
| Data Blocks | 8,192 | 8,192 | 16,384 |
| Best For | Medium complexity | Large systems | Very large systems |
| Typical Price | 💰💰💰 | 💰💰💰💰 | 💰💰💰💰💰 |
💡 Selection Guide: Choose CPU 412-5H for medium-complexity redundant systems (up to 2,000 I/O points). Upgrade to CPU 414-5H or 417-5H for larger programs or faster cycle times.
🛠️ Installation & Configuration
Hardware Requirements
- 2× Siemens 6ES7412-2XJ05-0AB0 CPU modules (this product)
- 2× S7-400 UR2-H racks (6ES7400-2JA00-0AA0)
- 2× PS 407 redundant power supplies
- 2× Sync modules with fiber optic cables
- Redundant I/O modules (ET 200M or S7-400 I/O)
Configuration Steps
- Hardware Setup – Install CPUs in Slot 2 of each UR2-H rack, connect sync cables
- STEP 7 Configuration – Create H-system project, assign CPU addresses, configure redundancy parameters
- Program Download – Download identical programs to both CPUs
- Synchronization – Verify both CPUs enter RUN-Redundant mode
- Testing – Simulate CPU failure to verify bumpless switchover
💻 Programming Considerations
Supported Languages
- LAD (Ladder Logic)
- FBD (Function Block Diagram)
- STL (Statement List)
- SCL (Structured Control Language)
- S7-Graph (Sequential Control)
- S7-HiGraph (State Machines)
Redundancy-Specific Features
- System Functions: SFC 90 (H_CTRL) for redundancy control
- Diagnostics: SFC 51 (RDSYSST) for system status monitoring
- Synchronization: Automatic data consistency between CPUs
- Switchover Events: OB 72 (CPU redundancy error) handling
🛡️ Authenticity & Quality
⚠️ Counterfeit CPU Risks
Fake CPUs in critical systems can cause:
- 🔥 Catastrophic failures in hazardous processes
- ⚡ Unpredictable behavior during failover events
- 💥 Data corruption and process upsets
- 🚫 Voided insurance and regulatory non-compliance
- ⚖️ Legal liability for safety incidents
✅ Industrial Control Hub Guarantee
- 🔒 100% Genuine Siemens – Factory-sealed with holographic labels
- 📜 Full Traceability – Serial numbers and manufacturing certificates
- 🌍 Authorized Distributor – Verify at Siemens Industry Mall
- 🛡️ 24-Month Warranty – Global manufacturer warranty coverage
- 📦 ESD Protection – Anti-static packaging prevents component damage
- 🎓 Technical Support – Pre-sales consultation and post-purchase assistance
📦 Package Contents
- 1× Siemens 6ES7412-2XJ05-0AB0 CPU 412-5H module
- Integrated MPI/DP and Profibus interfaces
- Product documentation and certificate of conformity
Note: Redundant CPU, racks, power supplies, sync modules, and I/O modules must be ordered separately for complete H-system.
🤝 Technical Support
- 📧 System Design Consultation – Email us your redundancy requirements for architecture recommendations
- 📚 Documentation Library – Access Siemens manuals, configuration guides, and programming examples
- 🎓 Training Resources – S7-400H configuration tutorials and best practices
- 🔧 Commissioning Support – Remote assistance for redundancy testing and validation
- 🔄 30-Day Returns – Unused CPUs in original packaging
❓ FAQ
Q: Can I use CPU 412-5H in a non-redundant S7-400 system?
A: No, the -5H suffix indicates H-system (redundant) only. For standard S7-400, use CPU 412-2 (6ES7412-2XK07-0AB0).
Q: What's the difference between CPU 412-5H and CPU 412-2?
A: CPU 412-5H supports redundancy (H-system), while CPU 412-2 is for standard single-CPU systems. Performance is similar.
Q: Do I need two of these CPUs for redundancy?
A: Yes, S7-400H requires two identical CPUs, two racks, two power supplies, and sync modules.
Q: Can I mix CPU 412-5H with CPU 414-5H in the same H-system?
A: No, both CPUs in an H-system must be identical models with the same firmware version.
Q: What happens if both CPUs fail simultaneously?
A: Extremely rare (probability <0.001%). System enters STOP mode. Redundant power and proper maintenance minimize this risk.
Q: Is this CPU compatible with TIA Portal?
A: Yes, but requires TIA Portal V13 or higher with S7-400H license. STEP 7 V5.x also supported.