Home > Products > SIEMENS > SIMATIC S7 Series
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Complete model
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6ES7412-2XK07-0AB0
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Product family
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SIMATIC S7-400 CPU 412
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Product type
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CPU 412-2 central processing unit
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HW functional status
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01
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Firmware version
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V7.0
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Work memory
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1 MB integrated: 512 kB program and 512 kB data
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Load memory
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Up to 64 MB FEPROM or 64 MB RAM by memory card
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Supply
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Power supplied through the system backplane
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Input current
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5 V DC: 0.9 A typical, 1.1 A maximum; 24 V DC: 300 mA maximum
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Power loss
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4.5 W typical
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Processing time
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31.25 ns typical for bit, word, and fixed-point operations; 62.5 ns floating point
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I/O address area
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4 kB inputs and 4 kB outputs
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Interfaces
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1 x MPI/PROFIBUS DP and 1 x PROFIBUS DP; both isolated RS 485
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Transmission rate
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Up to 12 Mbit/s on each interface
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DP capacity
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Up to 32 DP devices on interface 1 and 64 DP devices on interface 2
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Required slots
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1
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Diagnostic buffer
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Up to 3,200 entries
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Operating temperature
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0 to 60 deg C
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Dimensions
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25 x 290 x 219 mm (W x H x D)
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Weight
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Approximately 700 g
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Approvals
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CE, CSA, UL, cULus, FM, RCM, KC, EAC; ATEX II 3G Ex nA IIC T4 Gc
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Engineering
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STEP 7 V5.4 or higher with HSP 261
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Program execution
Typical bit, word, and fixed-point operation time is 31.25 ns; floating-point operation time is 62.5 ns.
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Memory resources
Integrated work memory totals 1 MB and can be complemented by memory cards for load memory.
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Address capacity
The CPU provides 4 kB input and 4 kB output address areas with configurable process images.
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Configuration in RUN
CiR is supported with a 100 ms basic synchronization load plus 30 us per I/O byte.
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MPI/DP interface
The first isolated RS 485 interface supports MPI and PROFIBUS DP master or device operation to 12 Mbit/s.
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Second PROFIBUS DP
The second isolated RS 485 interface supports PROFIBUS DP master or device operation to 12 Mbit/s.
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Communication resources
Up to 48 total connections are available for PG, OP, S7 communication, and routing functions.
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Isochronous operation
Both DP masters support equidistance and isochronous operation with a shortest stated clock pulse of 1.5 ms.
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Diagnostic buffer
The integrated diagnostic buffer stores up to 3,200 entries; the preset value is 120.
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Test functions
Block status, single-step operation, up to 16 breakpoints, status/control tables, and forcing are supported.
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Message functions
Symbol-related, program, and process diagnostic messages are supported with configurable alarm resources.
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Program protection
User-program password protection and block encryption with S7 Block Privacy are supported.
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Rack installation
The CPU occupies one slot in a SIMATIC S7-400 central rack and receives power from the system backplane.
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Interface cabling
Use PROFIBUS-compatible RS 485 network components and validate the intended MPI or DP role for each port.
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Environmental limit
Operate from 0 to 60 deg C within the specified SIMATIC S7-400 cabinet environment.
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Engineering requirement
Configure with STEP 7 V5.4 or higher and HSP 261 for this hardware version.
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Q1. How can I verify that the quoted item is exactly 6ES7412-2XK07-0AB0?
Match the complete order number on the CPU label, quotation, packaging, and invoice. Confirm CPU 412-2, firmware V7.0, 1 MB work memory, two PROFIBUS-capable interfaces, and the 25 mm module width.
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Q2. How can I distinguish a new CPU 412-2 from a used or refurbished unit?
Request current photos of the Siemens label, front cover, memory-card slot, MPI/DP connectors, backplane connector, rack latch, and packaging. Inspect for rack marks, connector wear, replaced labels, or resealing.
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Q3. How should a buyer verify that the supplier is legitimate and reliable?
Confirm the supplier legal name, registration, physical address, bank beneficiary, and S7-400 transaction references. All documents should consistently identify 6ES7412-2XK07-0AB0.
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Q4. Which specifications should an engineer verify before purchasing?
Verify STEP 7 compatibility, 1 MB memory split, two RS 485 PROFIBUS interfaces, required DP device counts, 25 x 290 x 219 mm dimensions, and approximately 700 g weight.
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Q5. What physical evidence should be requested before payment?
Request timestamped photos or video showing the full order-number label, serial information, front indicators, both D-sub interfaces, memory-card slot, backplane connector, housing condition, and sealed packaging.
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Q6. Can another CPU 412 suffix replace 6ES7412-2XK07-0AB0?
Not automatically. A different suffix can change memory, firmware, interface count, connector layout, STEP 7 requirements, rack compatibility, or approvals. Engineering must validate the exact hardware configuration first.
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EN
