6ES7414-4HR14-0AB0 – Technical Specifications
General Data
Module Type: CPU 414-4H (High Availability/Fault-Tolerant)

Order No.: 6ES7414-4HR14-0AB0

Series: SIMATIC S7-400 (Redundant System Capable)

Firmware Version: Can be updated (check Siemens support)

Performance
CPU Processing Speed: ~0.1 μs per instruction (bit operations)

Memory:

Work Memory (RAM): 2.8 MB (for program & data)

Load Memory: Expandable via Flash EPROM or RAM memory cards

Bit Operations: ~0.1 μs

Word Operations: ~0.2 μs

Floating-Point Operations: ~0.6 μs

Communication & Interfaces
Integrated PROFIBUS-DP Interface:

DP Master/Slave support

Transmission Rate: Up to 12 Mbps

Additional Communication Options:

Supports PROFINET (via CP/expansion modules)

MPI (Multi-Point Interface): For PG/OP/HMI communication

Redundant communication paths for high availability

I/O Capacity
Max. Digital I/O: Up to 128,000 (with expansions)

Max. Analog I/O: Up to 8,000 (with expansions)

Max. Number of Modules: Up to 1,024 (with central & expansion racks)

Redundancy & High Availability
Redundant Operation: Yes (for fault-tolerant systems)

Hot Standby Switchover: Automatic failover in case of failure

Synchronization: Via fiber-optic cable (for redundant CPUs)

Power Supply & Requirements
Supply Voltage: 24V DC (standard S7-400 PSU)

Current Consumption: ~1.5 A (typical, depends on configuration)

Backup Battery: Optional for RAM backup

Programming & Software
Supported Software:

STEP 7 (LAD, FBD, STL, SCL)

TIA Portal (with limitations, check Siemens compatibility)

Programming Languages: Ladder Logic (LAD), Function Block Diagram (FBD), Statement List (STL), Structured Control Language (SCL)

Certifications & Standards
CE, UL, cUL, ATEX (for industrial use)

Operating Temperature: 0°C to 60°C

Protection Class: IP20 (must be installed in a control cabinet)

Key Applications
✔ High-reliability industrial automation
✔ Process control (chemical, oil & gas, power plants)
✔ Redundant systems (fail-safe operations)
✔ Large-scale manufacturing & logistics