Siemens SIMATIC S7-400, CPU 414H 6ES7414-4HM14-0AB0

Specification Sheet for Siemens SIMATIC S7-400H, CPU 414-4HM14-0AB0

Basic Information
Product Model: 6ES7414-4HM14-0AB0
Product Series: SIMATIC S7-400H
CPU Type: CPU 414H
Application Areas: Suitable for high-end, fault-tolerant, and high-availability industrial automation applications, particularly in the Chemical, Oil & Gas, Power Generation, and Process Industries.

Hardware Characteristics

• Integrated Interfaces:

• 1x MPI/DP interface for communication with other S7-300/400 PLCs and HMI systems

• 1x PROFIBUS DP interface for high-speed communication with I/O devices and other DP slaves

• 2x Additional interfaces for synchronization modules, supporting redundant configurations in S7-400H and S7-400F/FH systems

• Power Supply: Typically requires an external 24 V DC power supply, with specific voltage and current ratings as per Siemens specifications.

• Power Protection: External protection recommended for power supply cables and system components.

• Redundancy: Supports redundant configurations (S7-400H) for high availability applications.

Memory Configuration

• Total Memory: 2.8 MB

• Load Memory (Program Memory): 1.4 MB

• Working Memory (Data Memory): 1.4 MB

• Additional Memory Options: May support external memory cards or modules for expanded memory capacity.

Programming Environment

• Supported Software: STEP 7 V5.5 + SP1 or higher, optimized for S7-400H/F/FH systems

• Programming Languages: Supports LAD (Ladder Diagram), FBD (Function Block Diagram), STL (Statement List), SCL (Structured Control Language), and Graph (Sequential Function Chart)

Processing Capabilities

• High-speed processing capabilities suitable for complex control algorithms and large-scale automation projects.

• Detailed performance specifications (e.g., bit, word, fixed-point, and floating-point operation times) may vary and should be referenced from the latest Siemens documentation.

Additional Features

• Program Block Quantities:

• Maximum number of Data Blocks (DBs): Dependent on memory capacity, but significantly more than 1024 due to larger memory size.

• Maximum number of Function Blocks (FBs) and Functions (FCs): Also dependent on memory capacity, but with the ability to handle larger and more complex programs.

• Types and quantities of Organization Blocks (OBs): Includes all standard OBs (e.g., OB1, OB10-OB122, etc.) and may support additional OBs specific to S7-400H/F/FH functionality.

• Counters and Timers:

• S7 Counters: Unlimited (limited only by RAM capacity), with retentivity

• S7 Timers: Unlimited (limited only by RAM capacity), with retentivity

• Redundancy Management: Integrated support for hot standby, automatic switchover, and synchronization in S7-400H systems.

• Diagnostic Capabilities: Enhanced diagnostic tools for easy fault detection, analysis, and resolution.

Notes

• The above specification sheet is based on publicly available information and may be subject to change due to product updates.

• It is highly recommended to consult the latest official documentation or contact Siemens technical support for the most accurate and up-to-date information before purchase or use.

• The S7-400H system, including the CPU 414H, is designed for demanding applications requiring high availability and fault tolerance. Proper system design, configuration, and maintenance are crucial for optimal performance and reliability.