Model: 6ES7658-2GG00-0XB0
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 Siemens SIMATIC S7-400 is one of the most widely deployed programmable logic controller platforms in global heavy industry. Installed across petrochemical complexes, nuclear power facilities, steel mills, automotive body shops, and large-scale water treatment plants, the S7-400 has served as the backbone of process automation for over three decades. Its modular rack-based architecture, deterministic cycle times, and support for PROFIBUS-DP and Industrial Ethernet made it the reference platform for high-availability control applications requiring redundancy and fault tolerance. As of 2023, Siemens has formally announced the phase-out of the S7-400 product line in favor of the SIMATIC S7-1500 and S7-1500H redundancy systems. Facilities that have not yet migrated face a defined window during which spare parts availability from the OEM will progressively narrow. DriveKNMS maintains a dedicated inventory of S7-400 hardware and software components to support lifecycle extension for these installations.
The S7-400 platform was introduced in the mid-1990s as the successor to the SIMATIC S5 series, specifically the S5-115U, S5-135U, and S5-155U families. The transition from S5 to S7 required new programming tools (STEP 7 replacing STEP 5) and new hardware form factors, though Siemens provided CP 342-5 and IM 463-2 interface modules to bridge legacy S5 I/O racks into S7-400 systems during migration periods.
The S7-400 architecture is built around the UR1 (18-slot) and UR2 (9-slot) universal racks, with central processing units communicating to expansion racks via IM 460/461 send/receive interface modules. The backplane bus operates at 100 Mbit/s for data exchange between modules. Over its lifecycle, the CPU range expanded from the entry-level CPU 412-1 to the high-end CPU 417-4H redundant processor, with memory capacities scaling from 256 KB to 30 MB of work memory. The H-series CPUs (CPU 412-3H, CPU 414-4H, CPU 417-4H) introduced hardware-redundant configurations using fiber-optic sync cables, enabling hot-standby operation with switchover times under 100 ms — a requirement in nuclear and refinery safety instrumented systems.
Central Processing Units (CPU)
Digital Input / Output Modules (DI/DO)
Analog Input / Output Modules (AI/AO)
Communication & Interface Modules
Power Supply Modules (PS)
Software Licenses
S7-400 modules present specific failure modes that require targeted inspection protocols. The backplane bus connectors on UR1 and UR2 racks are subject to fretting corrosion in high-vibration environments. CPU battery holders on older revisions develop contact oxidation that causes memory loss on power cycle. Analog input modules with HART capability require calibration verification against known reference signals. Our QC process for S7-400 units covers the following steps:
Continue The Model Path
Move from this exact model into the matching system hub, brand archive, model-family archive or lifecycle sourcing route before sending a final RFQ list.
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 6ES7412-1XJ07-0AB0 is listed for S7-400 RFQ review. Confirm quantity, condition and destination before quotation.
Siemens 6ES7441-1AA04-0AE0 is listed for S7-400 RFQ review. Confirm quantity, condition and destination before quotation.
