Model: 6ES7650-8EK80-1AA0
Product Overview
Commercial availability is handled through direct RFQ, model verification and export-oriented follow-up rather than public cart checkout.
Datasheet Preview
Use attached product manuals when available. If the manual is not public yet, request the full file directly through RFQ.
Commercial Path
Product pages on DRIVEKNMS are designed to verify model, brand and series first, then move the buyer into one clean quotation path.
Technical Dossier
The S7-400 platform was introduced by Siemens in 1994 as the successor to the SIMATIC S5-115U/H and S5-135U/155U families. The initial release established the core rack-and-module architecture using the P-bus (peripheral bus) and K-bus (communication bus) backplane topology that remains structurally consistent through all subsequent hardware revisions.
Generation 1 (1994–2000): Original CPU 412, CPU 414, and CPU 416 modules with MPI/PROFIBUS interfaces. Racks limited to CR2 and UR2 configurations. Power supplies in the IM 460/461 expansion range.
Generation 2 (2001–2008): Introduction of CPU 417, expanded memory cards, and PROFINET-capable communication processors (CP 443-1). The S7-400H redundant CPU pair (CPU 414-4H, CPU 417-4H) became the standard for fault-tolerant applications. Backplane components including the 6ES765x rack series were standardized during this period.
Generation 3 (2009–2016): CPU 410-5H Process Automation introduced as a unified platform for standard and safety (F) applications. PROFINET IRT support added. Firmware updates extended compatibility with TIA Portal engineering framework.
End-of-Life Transition (2017–present): Siemens announced the S7-400 product line as mature/end-of-development. The SIMATIC S7-1500 and S7-1500H are the designated successor platforms. S7-400 hardware remains in production for spare parts supply but no new functional development is planned. For installations requiring long-term maintenance, third-party spare parts suppliers and refurbished module sourcing are the primary continuity strategy.
CPU Modules
6ES7412-2XK07-0AB0: CPU 412-2, 256 KB work memory, MPI/DP interface, standard controller for small S7-400 configurations.
6ES7414-2XK05-0AB0: CPU 414-2, 512 KB work memory, dual MPI/DP ports, mid-range process automation.
6ES7416-2XN05-0AB0: CPU 416-2, 5.6 MB work memory, high-throughput processing for complex automation tasks.
6ES7417-4XT05-0AB0: CPU 417-4, 30 MB work memory, maximum performance tier for large-scale DCS integration.
6ES7414-4HM14-0AB0: CPU 414-4H, redundant CPU for S7-400H fault-tolerant systems, synchronization via fiber optic.
6ES7417-4HT14-0AB0: CPU 417-4H, high-availability redundant CPU, used in nuclear and refinery safety loops.
Digital Input/Output Modules (DI/DO)
6ES7421-1BL01-0AA0: SM 421 DI 32×DC 24V, 32-channel digital input, standard process signal acquisition.
6ES7422-1BL00-0AA0: SM 422 DO 32×DC 24V/0.5A, 32-channel transistor output, actuator control.
6ES7431-1KF10-0AB0: SM 431 AI 8×13Bit, 8-channel analog input, ±10V/0–20mA, process variable measurement.
6ES7432-1HF00-0AB0: SM 432 AO 8×13Bit, 8-channel analog output, control signal generation for final control elements.
Analog Input/Output Modules (AI/AO)
6ES7431-7QH00-0AB0: SM 431 AI 16×16Bit, 16-channel high-resolution analog input for precision measurement loops.
6ES7460-1BA01-0AB0: IM 460-1, send interface module for central rack to expansion rack connection via K-bus.
6ES7461-1BA01-0AB0: IM 461-1, receive interface module, pairs with IM 460-1 for local expansion.
Communication Processors
6GK7443-1EX30-0XE0: CP 443-1, Industrial Ethernet communication processor, PROFINET IO controller capability.
6GK7443-5DX05-0XE0: CP 443-5 Extended, PROFIBUS DP master/slave, connects S7-400 to distributed I/O networks.
Power Supply Modules
6ES7407-0DA02-0AA0: PS 407 4A, 24VDC/4A regulated power supply for S7-400 rack.
6ES7407-0KA02-0AA0: PS 407 10A, 24VDC/10A power supply for fully populated racks with high current demand.
Rack / Backplane Components
6ES7650-8EK80-1AA0: S7-400 rack backplane component, provides P-bus and K-bus electrical interconnect for module slots; structural mounting and bus termination for the S7-400 modular chassis.
6ES7400-1JA01-0AA0: UR2 universal rack, 9-slot, accepts all S7-400 modules including CPU, PS, and I/O.
6ES7400-2JA00-0AA0: UR2-H rack for S7-400H redundant systems, dual-row configuration.
DriveKNMS maintains a dedicated inventory of S7-400 spare parts sourced through verified industrial surplus channels, decommissioned plant buybacks, and authorized refurbishment programs. All units are cataloged by part number, firmware revision, and hardware version to ensure compatibility with existing installed configurations. For end-users operating S7-400 systems beyond the OEM support window, DriveKNMS provides:
S7-400 modules present specific test challenges due to the dual-bus (P-bus + K-bus) backplane architecture and the high pin-count edge connectors used on rack components. DriveKNMS applies the following verification procedures to all S7-400 inventory:
Continue The Model Path
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Related Paths
Siemens SIEMENS 6ES7414-3EM06-0AB0 Central Processing Unit is listed for S7-400 RFQ review. Confirm quantity, condition and destination before quotation.
Siemens 6ES7431-1KF10-0AB0 is listed for S7-400 RFQ review. Confirm quantity, condition and destination before quotation.
Siemens 6ES7431-1KF00-0AB0 is listed for S7-400 RFQ review. Confirm quantity, condition and destination before quotation.
