Siemens 6ES7412-3HJ14-0AB0 SIMATIC S7-400H CPU 412-3H
01Product Overview
Siemens 6ES7412-3HJ14-0AB0 is the SIMATIC S7-400H CPU 412-3H central processing unit for S7-400H and S7-400F/FH systems. It provides three interfaces, including one MPI/DP interface and two interfaces for synchronization modules, with 768 KB of work memory divided between program and data.
Match the complete model or article number, hardware variant, ratings, installed system, and connection arrangement before ordering.
02Specifications
| Manufacturer | Siemens |
|---|---|
| Article Number | 6ES7412-3HJ14-0AB0 |
| Product Designation | SIMATIC S7-400H CPU 412-3H |
| System Use | S7-400H and S7-400F/FH |
| Interfaces | 3 total: 1 MPI/DP and 2 synchronization-module interfaces |
| Work Memory | 768 KB total |
| Program Memory | 512 KB |
| Data Memory | 256 KB |
| PROFIsafe V2 Support | Supported from CPU 412-3H 6ES7412-3HJ14-0AB0 with firmware V4.5 or later |
| Product Lifecycle | Cancelled since February 1, 2017; handled as a spare part |
| Country of Origin | Germany |
| EAN | 4019169154352 |
03Features
Design and Function
- Central processing unit for high-availability S7-400H and fail-safe S7-400F/FH systems.
- One integrated MPI/DP interface for supported system communication.
- Two dedicated interfaces for synchronization modules.
- Separate 512 KB program and 256 KB data memory areas.
- Supports PROFIsafe V2 mode with the specified firmware level.
- Available through Siemens spare-parts and service channels according to the current product status.
Product Identity
Model: 6ES7412-3HJ14-0AB0
Type: SIMATIC S7-400H CPU 412-3H
Manufacturer: Siemens
04Applications
- High-availability automation based on the SIMATIC S7-400H architecture.
- Fail-safe S7-400F/FH control systems configured for CPU 412-3H.
- Maintenance replacement in an installed redundant CPU pair after firmware and configuration checks.
- PROFIBUS DP safety applications using supported PROFIsafe V2 configurations.
05Lifecycle & Replacement
- Siemens lists the product as cancelled since February 1, 2017 and identifies it as a spare part.
- Use the exact article number when arranging spare-part delivery, repair, or exchange.
- Siemens directs successor evaluation to its product support information; migration requires a complete hardware and software review.
- Back up the STEP 7 project, hardware configuration, safety configuration, and diagnostic data before service.
- For redundant systems, verify partner CPU, firmware, synchronization modules, and system state before replacement.
06FAQ
What is 6ES7412-3HJ14-0AB0?
It is the Siemens SIMATIC S7-400H CPU 412-3H for S7-400H and S7-400F/FH systems.
How much work memory does the CPU provide?
It provides 768 KB: 512 KB for the program and 256 KB for data.
Which interfaces are included?
The CPU has one MPI/DP interface and two interfaces for synchronization modules.
Does it support PROFIsafe V2 mode?
Yes. Siemens lists support from this CPU version with firmware V4.5 or later.
What is the lifecycle status?
Siemens lists the product as cancelled since February 1, 2017 and handles it as a spare part.
What must be checked before replacing it?
Verify the exact article number, partner CPU, firmware, synchronization modules, STEP 7 configuration, and safety configuration.
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