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

Siemens S7-400H CPU 414H – 6ES7414-4HM14-0AB0 Redundant Controller

• Manufacturer & Series: Siemens SIMATIC S7-400H – the flagship redundant automation platform.
• Exact Model: CPU 414H (6ES7414-4HM14-0AB0) – the primary subject of this technical overview.
• Working Memory: 2.8 MB integrated (1.4 MB program / 1.4 MB data), non-expandable.
• Interfaces: 1 MPI/DP port, 1 DP port, and 2 slots for synchronization modules (IF 960).
• Processing Speed: 0.045 µs for bit, word, and fixed-point operations; 0.135 µs for floating-point math.
• Maximum Expansion: Supports up to 21 expansion units for large-scale system configuration.
• Power Loss: Typical 6 W, ensuring energy-efficient operation inside the rack.
• Input Current (5V DC): Typical 1.4 A, maximum 1.7 A from the backplane bus.
• Number of DP Masters: 2 integrated (MPI/DP and DP) plus up to 10 via CP for PROFIBUS.
• Address Area: 8 KB inputs and 8 KB outputs, with adjustable process image up to 8 KB each.
• Digital Channels: Up to 65,536 digital inputs and outputs in central configurations.
• Analog Channels: Up to 4,096 analog inputs and outputs in central configurations.
• Clock Synchronization: Supports MPI and DP master/slave synchronization for time-critical tasks.
• Communication: S7 routing, PG/OP communication, and S7 communication with up to 32 connections.
• Diagnostic Buffer: Stores up to 3,200 entries with adjustable size for troubleshooting.
• Programming Languages: LAD, FBD, STL, SCL, CFC, GRAPH, and HiGraph® for flexible development.
• Know-how Protection: Password protection safeguards your user program from unauthorized access.
• Dimensions (HxWxD): 290 mm x 50 mm x 219 mm – fits standard S7-400 racks.
• Weight: Approximately 0.995 kg for easy handling during installation.

Frequently Asked Questions

• Q: Is this CPU brand new and original?
  A: Yes, we supply 100 % genuine Siemens CPU 414H modules in factory-sealed packaging.
• Q: What type of memory does this CPU use?
  A: It uses integrated RAM for working memory and supports FEPROM load memory expansion up to 64 MB.
• Q: Does this CPU support redundant operation?
  A: Yes, it is specifically designed for S7-400H fault-tolerant systems with dual-CPU redundancy.
• Q: What synchronization modules do I need?
  A: You need two IF 960 modules (6ES7960-1AA04-0XA0 or 6ES7960-1AB04-0XA0) for fiber-optic sync.
• Q: How many DP slaves can I connect?
  A: The integrated DP interface supports up to 96 slaves, while the MPI/DP interface supports 32 slaves.
• Q: Does this CPU support S7 communication?
  A: Yes, it supports S7 communication as both server and client with up to 64 KB user data per job.
• Q: What is the typical power loss?
  A: The typical power loss is 6 W, ensuring efficient thermal management inside the cabinet.

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