Features:
- Two synchronization-module interfaces connect the CPU to its redundant H-system partner.
- MPI/DP, a second PROFIBUS DP path, and switched PROFINET divide programming, fieldbus, and Ethernet IO traffic.
- Program and data each receive 512 KB of work memory, with separate card-based load-memory expansion.
Siemens 6ES7412-5HK06-0AB0 combines program execution and partner synchronization in a two-slot S7-400H processor.
The interface layout of 6ES7412-5HK06-0AB0 allows operator or programming access, two DP relationships, and a PROFINET IO network to coexist.
Backplane power, memory-card choice, battery backup, and matching synchronization hardware define the rack boundary around 6ES7412-5HK06-0AB0.
The Siemens 6ES7412-5HK06-0AB0 CPU 412-5H PN/DP may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7412-5HK06-0AB0 CPU 412-5H PN/DP Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
How the partner CPUs stay coordinated
- CPU partners: An H-system uses matching processors rather than treating one CPU as a passive spare.
- Sync modules: The two dedicated positions accept synchronization hardware that carries partner-state exchange.
- Fiber links: Synchronization cables connect the paired module paths according to the selected distance hardware.
- Project identity: Rack, CPU, firmware, and synchronization assignments must match on both sides before redundant operation.
Separating station traffic
- MPI/DP port: Engineering devices, operator stations, and one DP segment share the integrated multipurpose interface.
- Dedicated DP: The second PROFIBUS interface forms another master path with its own configured stations.
- PROFINET IO: The switched Ethernet interface connects the CPU to its assigned IO devices and communication peers.
- Partner sync: Redundancy data avoids those plant networks by using the dedicated synchronization path.
Working, load, and retained data
- Work memory: Program and runtime data execute from separate 512 KB allocations.
- Load card: FLASH or RAM cards extend the project storage area up to the documented 64 MB limit.
- Battery role: The rack battery retains backed-up working data and RAM-card content when system power is removed.
- External backup: The CPU also exposes the documented external backup-voltage path for the retention circuit.
Power, slots, and engineering
- Slot width: The processor occupies two adjacent S7-400 rack positions.
- Power path: Operating power arrives from the system supply through the backplane rather than a separate CPU feed.
- Interface current: Each DP interface has its own stated current allowance for connected interface loads.
- STEP 7 baseline: Hardware configuration starts with STEP 7 V5.5 SP2 HF1 for this V6.0 CPU.