Siemens 6ES7 431-1KF20-0AB0
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Siemens 6ES7 412-2EK07-0AB0 is a CPU 412-2 PN central processing unit for the SIMATIC S7-400 automation system. It executes the user program, coordinates the connected modules and links the existing control to fieldbus and Industrial Ethernet communication. The Siemens data sheet specifies 1 MB of integrated RAM work memory, divided equally into 512 KB of program memory and 512 KB of data memory. The first communication interface, X1, supports MPI or PROFIBUS DP at up to 12 Mbit/s. The second interface, X5, is intended for Ethernet and PROFINET. Isochronous operation is supported via PROFIBUS DP or PROFINET. Power is supplied by the S7-400 system power supply and backplane bus. Typical current consumption from the 5-V-DC backplane bus is 1.1 A, with a maximum of 1.4 A; Siemens specifies typical power loss of 5.5 W. Load memory for programs and data can be expanded to 64 MB with a FLASH or RAM Memory Card. The CPU measures 25 x 290 x 219 mm and weighs approximately 750 g. The data sheet specifies hardware functional status 01, firmware V7.0 and STEP-7 V5.5 or higher with HSP 262 for engineering. A replacement therefore requires comparison of the MLFB and form factor as well as the firmware version, Memory Card, project version, MPI/DP addresses, PROFINET device name, IP configuration and connected devices. Other CPU-412, CPU-414 or older 6ES7-412 versions are not automatically interchangeable despite a similar front layout. Exact comparison protects existing machine programs, communication paths and startup conditions and supports planned recommissioning after a CPU failure.
| Manufacturer | Siemens |
|---|---|
| Product range | SIMATIC S7-400 |
| Manufacturer / order / identification number | 6ES7 412-2EK07-0AB0 |
| Device type | CPU 412-2 PN central processing unit |
| Work memory | 1 MB integrated RAM |
| Program memory | 512 KB integrated |
| Data memory | 512 KB integrated |
| Load memory | expandable to 64 MB with FLASH or RAM Memory Card |
| Interface X1 | MPI/PROFIBUS DP, up to 12 Mbit/s |
| Interface X5 | Ethernet/PROFINET |
| Isochronous operation | via PROFIBUS DP or PROFINET |
| Power supply | via SIMATIC-S7-400 system power supply |
| 5-V backplane bus current | 1.1 A typical; 1.4 A maximum |
| 24-V backplane bus current | 150 mA maximum per DP interface |
| Power loss | 5.5 W typical |
| Hardware functional status | 01 |
| Firmware version | V7.0 |
| Engineering | STEP 7 V5.5 or higher with HSP 262 |
| Dimensions | 25 x 290 x 219 mm |
| Weight | approx. 750 g |
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The CPU 412-2 PN provides X1 for MPI or PROFIBUS DP at up to 12 Mbit/s and X5 for Ethernet or PROFINET.
The complete MLFB, hardware functional status, firmware, Memory Card, STEP 7 project, bus addresses, PROFINET device name, IP configuration and connected devices are decisive.
Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.
Please note that the guarantee only applies when the warranty seal is undamaged.
If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.
Further details are provided in the terms and conditions supplied with your quotation.
We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.
Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.
We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.
Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.
As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.
Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.
Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.
For larger order quantities or several items of one type, we can offer individual discounts.
Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.
Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.
The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.
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