High-Availability CPU for SIMATIC S7-400H Safety Systems
The Siemens 6ES7414-4HJ04-0AB0 processor module serves as the central intelligence for SIMATIC S7-400H and S7-400F/FH redundant automation systems . This CPU features four integrated interfaces, including one MPI/DP and one DP, plus two ports for synchronisation modules . It delivers swift processing times of just 0.06 µs for bit operations .
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES7414-4HJ04-0AB0 |
| Series | SIMATIC S7-400H |
| Product Type | CPU 414-4H Processor Module |
| Work Memory | 1.4 MB (700 KB program / 700 KB data) |
| Load Memory Expansion | FEPROM up to 64 MB (via Memory Card) |
| Processing Speed | 0.06 µs (bit/word/fixed-point) / 0.18 µs (floating-point) |
| Interfaces | 1 MPI/DP, 1 DP, 2 for sync modules |
| Communication Protocols | PROFIBUS DP |
| Digital Channels | 65,536 inputs / 65,536 outputs (max) |
| Analog Channels | 4,096 inputs / 4,096 outputs (max) |
| Expansion Units | Up to 21 |
| Power Supply | 24V DC (via system power supply) |
| Current Consumption | 5V DC typ. 1.8A; max. 2A |
| Power Loss | typ. 4.5W |
| Battery Backup | Yes (retains all data) |
| Operating Temperature | 0°C to +60°C |
| Weight | approx. 1.07 kg |
| Dimensions (W x H x D) | 50 x 290 x 219 mm |
Triple Modular Redundancy Architecture
The Siemens 6ES7414-4HJ04-0AB0 supports high-availability configurations for critical process applications. This CPU integrates seamlessly with S7-400H systems to ensure uninterrupted operation through redundancy . The module supports up to 4,096 data blocks (DBs) and 2,048 function blocks (FBs) . Each block can be as large as 64 KB.
Extensive Communication Capabilities
The processor module offers versatile connectivity options for distributed automation networks. The integrated MPI/DP and DP interfaces support PROFIBUS communication, accommodating up to 96 DP slaves on one interface . Two synchronisation module ports enable seamless integration with redundant partner CPUs .
Robust Data Management and Retention
The 6ES7414-4HJ04-0AB0 features a battery-backed real-time clock for accurate time-stamping . The integrated hardware clock retains time and date during power outages. The CPU supports a maximum of 2048 S7 counters with adjustable retentivity . Its programmable load memory via FLASH card allows flexible storage expansion.
Details
| Weight | 1.2 kg |
|---|---|
| Dimensions | 50 × 290 × 217 mm |
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