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- 6AG1412-5HK06-7AB0
- CPU Module
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- 50 × 290 × 219 mm
- 1.366 kg
- Xiamen, China
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Product Overview
The Siemens 6AG1412-5HK06-7AB0 is a SIPLUS S7-400 CPU 412-5H central processing unit for high-availability automation systems. It is based on the SIMATIC S7-400 CPU 412-5H and is intended for applications where controller availability and operation under extended environmental conditions are important.
The CPU can be used in SIMATIC S7-400H high-availability systems as well as S7-400F/FH configurations. Its communication interfaces combine MPI/PROFIBUS DP functionality with PROFINET connectivity, allowing the CPU to exchange data with distributed I/O, operator systems, engineering stations, and other automation devices.
The module has 1 MB of work memory, divided into 512 KB for program storage and 512 KB for data. Two dedicated interfaces are available for synchronization modules, which are used in redundant S7-400H controller configurations.
The SIPLUS version is intended for more demanding installation environments than a standard CPU. Its extended environmental capability makes it suitable for control cabinets and industrial installations exposed to a wider temperature range and increased environmental stress.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6AG1412-5HK06-7AB0 |
| Product Family | SIPLUS S7-400 CPU 412H |
| Product Type | SIPLUS S7-400 CPU 412-5H |
| Based On | 6ES7412-5HK06-0AB0 |
| Controller Type | High-availability CPU |
| Work Memory | 1 MB |
| Program Memory | 512 KB |
| Data Memory | 512 KB |
| Interfaces | 1 × MPI/DP, 1 × DP, 1 × PN, 2 × SYNC module interfaces |
| Application | S7-400H and S7-400F/FH systems |
| Operating Temperature | -25 to +70 °C |
| Environmental Protection | Conformal-coated SIPLUS version |
| Dimensions | 50 × 290 × 219 mm |
| Weight | 1.366 kg |
Product Features
- CPU 412-5H architecture for SIMATIC S7-400 high-availability systems.
- Supports S7-400H redundant controller configurations.
- Suitable for S7-400F/FH applications when the required safety configuration and runtime license are used.
- Combines MPI/PROFIBUS DP and PROFINET communication capabilities.
- Provides two interfaces for synchronization modules in redundant CPU configurations.
- Provides 1 MB of work memory with separate program and data areas.
- SIPLUS construction supports an extended operating temperature range.
- Conformal coating increases suitability for demanding industrial environments.
Working Principle
User Program → CPU 412-5H Processing → I/O and Network Data Exchange → Control Logic Execution → Output Commands
The 6AG1412-5HK06-7AB0 executes the user program stored in the S7-400 control system and processes input, data, communication, and diagnostic information during each controller operating cycle.
In an S7-400H configuration, two CPUs operate as a redundant control pair. Synchronization modules connect the CPUs so that controller states can be coordinated and the standby CPU can assume control when the active CPU or associated control path encounters a fault.
The communication interfaces support different parts of the automation network:
- MPI/DP can be used for programming, diagnostics, and PROFIBUS DP communication.
- DP provides connectivity with PROFIBUS-based distributed devices.
- PROFINET provides Ethernet-based industrial communication.
- SYNC module interfaces support synchronization between redundant CPUs.
- The CPU processes the control program and exchanges data with connected I/O and automation components.
This architecture allows the CPU to serve as the central processing element of a high-availability S7-400 control system rather than operating only as an isolated PLC processor.
Role in a SIMATIC S7-400H Control Architecture
Engineering Station / HMI → Industrial Network → CPU 412-5H → Distributed I/O → Field Devices
For redundant applications:
CPU 412-5H A ⇄ SYNC Modules ⇄ CPU 412-5H B
| System Element | Function |
|---|---|
| 6AG1412-5HK06-7AB0 CPU | Executes the automation program and manages controller functions |
| S7-400 Rack | Provides the mechanical and electrical mounting platform |
| Power Supply Module | Supplies operating power to the S7-400 station |
| PROFIBUS DP Devices | Provide distributed field-level I/O and device communication |
| PROFINET Devices | Provide Ethernet-based industrial communication |
| SYNC Modules | Maintain synchronization between redundant CPUs |
| SIMATIC Memory Card | Provides required program and configuration storage |
| HMI / SCADA System | Provides operator control, visualization, and process monitoring |
Industrial Applications
| Application | Typical Use |
|---|---|
| Process Automation | High-availability control for continuous industrial processes |
| Chemical Plants | Redundant controller architectures for process-critical equipment |
| Power and Utilities | Control applications where controller availability is important |
| Water and Wastewater | Continuous monitoring and control of treatment processes |
| Manufacturing | Centralized control of production equipment and distributed I/O |
| Oil and Gas | High-availability automation for process and utility systems |
| Infrastructure Systems | Redundant control architectures for continuously operating facilities |
Installation and Maintenance
- Verify that the CPU part number and system configuration match the planned S7-400 application.
- Switch off the relevant system power before installing or removing the CPU.
- Install the CPU in the designated S7-400 rack position according to the system configuration.
- Connect the required MPI/DP, PROFIBUS DP, and PROFINET communication networks.
- Install the required memory card and load the correct hardware configuration and user program.
- For an S7-400H system, install and configure the appropriate synchronization modules and redundant CPU arrangement.
- Check network connections, rack configuration, and diagnostic indicators before commissioning.
- Verify CPU diagnostics and communication status after startup.
- Keep unused interfaces protected with the appropriate connector covers where required by the environmental installation conditions.
- During maintenance, inspect connectors, rack contacts, communication cables, and synchronization connections for contamination or mechanical damage.
- Back up the current controller configuration and user program before replacing the CPU.
- After replacement, verify the CPU configuration, memory card, firmware compatibility, network communication, and redundancy status before returning the system to normal operation.
Related Components / Compatible System Components
| Component | Function |
|---|---|
| SIMATIC S7-400 Rack | Provides the installation and backplane infrastructure for the CPU |
| S7-400 Power Supply | Supplies power to the controller station |
| S7-400H SYNC Modules | Support synchronization between redundant CPUs |
| SIMATIC S7-400 Memory Card | Stores required program and configuration data |
| PROFIBUS DP Modules / Devices | Connect distributed field equipment |
| PROFINET Devices | Provide Ethernet-based automation communication |
| S7-400 Signal Modules | Provide digital and analog process I/O |
| SIMATIC HMI | Provides operator visualization and control |
| Engineering Station | Used for programming, configuration, and diagnostics |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Siemens 6AG1412-5HK06-7AB0 | SIPLUS S7-400 CPU 412-5H | High-availability S7-400H control |
| Siemens 6AG1414-5HM06-7AB0 | SIPLUS S7-400 CPU 414-5H | Higher-performance redundant control |
| Siemens 6AG1416-5HS06-7AB0 | SIPLUS S7-400 CPU 416-5H | Higher-performance S7-400H applications |
| Siemens 6AG1417-5HT06-7AB0 | SIPLUS S7-400 CPU 417-5H | High-performance redundant automation |
| Siemens 6AG1412-2EK06-2AB0 | SIPLUS S7-400 CPU 412-2 PN | S7-400 control with PROFINET communication |
| Siemens 6AG1414-3EM06-7AB0 | SIPLUS S7-400 CPU 414-3 PN | S7-400 automation with PN/DP connectivity |
Key Advantages
- Supports S7-400H high-availability controller architectures.
- Combines multiple industrial communication interfaces in one CPU.
- Provides dedicated synchronization connections for redundant controller configurations.
- Offers 1 MB of work memory for S7-400 control applications.
- Suitable for extended environmental conditions associated with SIPLUS applications.
- Can be integrated into S7-400F/FH architectures when the required safety configuration is implemented.
- Provides a practical CPU platform for process and infrastructure systems where controller availability is a major engineering requirement.
Technical FAQs
What is the difference between 6AG1412-5HK06-7AB0 and a standard S7-400 CPU?
The 6AG1412-5HK06-7AB0 is the SIPLUS version of the CPU 412-5H and is based on 6ES7412-5HK06-0AB0. The SIPLUS version adds enhanced environmental capabilities, including an extended operating temperature range and conformal coating for demanding installation conditions.
Can the 6AG1412-5HK06-7AB0 be used in an S7-400H redundant system?
Yes. The CPU 412-5H is intended for S7-400H high-availability applications. In a redundant configuration, the appropriate synchronization modules and matching system components are required to establish communication between the two CPUs.
What communication interfaces are available on this CPU?
The CPU has one MPI/DP interface, one additional DP interface, one PROFINET interface, and two interfaces for synchronization modules. This combination allows it to communicate with programming devices, distributed I/O, industrial Ethernet devices, and a redundant CPU arrangement.
How much memory does the CPU 412-5H provide?
The module provides 1 MB of work memory, divided into 512 KB for program storage and 512 KB for data. The actual application capacity also depends on the user program structure and the memory configuration used in the S7-400 system.