SIEMENS 6ES7590-0AA00-0AA0 U-Connector – SIMATIC S7-1500 Series
Imagine a fully commissioned S7-1500 control cabinet — drives humming, I/O modules scanning at millisecond intervals, safety logic armed — and then a single backplane bus connector fails. The entire CPU rack loses communication. Production halts. Maintenance teams scramble. The U-Connector 6ES7590-0AA00-0AA0 is the silent backbone that prevents this scenario: a precision-engineered bus bridge that mechanically and electrically joins every module on the S7-1500 rack, ensuring uninterrupted data exchange across the backplane.
Within the SIMATIC S7-1500 ecosystem, the 6ES7590-0AA00-0AA0 U-Connector occupies a foundational role. It is the standard backplane bus connector shipped with every S7-1500 I/O and functional module, enabling the high-speed, deterministic communication that makes S7-1500 one of the most trusted PLC platforms in global discrete and process manufacturing. From automotive assembly lines in Germany to petrochemical plants in the Middle East, this connector is the invisible link that keeps mission-critical automation running.
Technical Specifications
- Part Number: 6ES7590-0AA00-0AA0
- Product Family: SIMATIC S7-1500
- Type: U-Connector (Backplane Bus Connector)
- Manufacturer: Siemens AG
- Compatible Rack: SIMATIC S7-1500 mounting rail
- Function: Mechanical and electrical backplane bus interconnection between adjacent S7-1500 modules
- Installation: Tool-free snap-fit onto DIN rail mounting system
- Weight: Approx. 100 g
- Compliance: CE, UL, cULus (per Siemens product certification)
Key Features & Benefits
- Seamless Backplane Integration: Bridges the internal U-bus between S7-1500 modules, maintaining high-speed data integrity across the entire rack.
- Tool-Free Installation: Snap-fit design allows rapid module replacement during maintenance windows, minimizing downtime.
- Robust Mechanical Design: Engineered to withstand industrial vibration, thermal cycling, and the mechanical stress of frequent module swaps.
- OEM Genuine Part: Manufactured to Siemens’ exacting tolerances — no compatibility guesswork, no signal degradation risk.
- Universal S7-1500 Compatibility: Works with the full range of S7-1500 CPU, I/O, technology, and communication modules.
- Long Service Life: Designed for the operational lifespan of the S7-1500 platform, reducing lifecycle replacement costs.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white welding lines, paint shop conveyors, and final assembly stations using S7-1500 racks.
- Oil & Gas / Petrochemical: DCS migration projects and safety-instrumented systems (SIS) built on S7-1500 hardware.
- Food & Beverage: High-hygiene packaging lines and CIP/SIP process controllers requiring reliable backplane communication.
- Pharmaceutical: Batch process automation and serialization lines with strict uptime requirements.
- Water & Wastewater: SCADA-integrated pump stations and treatment plant PLCs.
- Machine Building (OEM): Any OEM integrating S7-1500 into multi-axis CNC, press, or robotics cells.
System Integration & Compatible Parts
The 6ES7590-0AA00-0AA0 U-Connector is designed to work within the complete SIMATIC S7-1500 hardware ecosystem. Commonly paired components include:
- S7-1500 CPUs: 6ES7511-x, 6ES7513-x, 6ES7515-x, 6ES7516-x, 6ES7517-x series
- S7-1500 Digital I/O Modules: 6ES7521-x, 6ES7522-x series
- S7-1500 Analog I/O Modules: 6ES7531-x, 6ES7532-x series
- S7-1500 Communication Modules: 6ES7541-x, 6ES7542-x series
- S7-1500 Mounting Rail: 6ES7590-1AB60-0AA0 (482 mm) and other rail variants
- S7-1500 Power Supply Modules: 6EP1333-x, 6EP1336-x series
When planning a rack expansion or spare parts inventory, it is recommended to stock one U-Connector per module slot to ensure zero-delay replacement capability.
Our Quality Assurance Process
- Source Verification: All SIEMENS parts are sourced from authorized distributors or directly from Siemens-certified supply chains.
- Visual & Physical Inspection: Every unit is inspected for connector pin integrity, housing cracks, and label authenticity before dispatch.
- Traceability: Batch and lot traceability records are maintained for all stocked components.
- Secure Packaging: Anti-static packaging with moisture barrier for safe international transit.
- Documentation: Certificate of conformity and packing list provided with every shipment upon request.
How to Order
- Submit your inquiry via the Contact / RFQ form on this page or email support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Receive a formal quotation within 1 business day.
- Confirm order and receive proforma invoice.
- Payment processed — shipment dispatched with full tracking.
For urgent requirements or large-volume orders, call us directly at +0086 19859288691.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
- Global Export Experience: Serving buyers in Europe, Southeast Asia, the Middle East, and the Americas with compliant export documentation.
- Competitive Pricing: Direct sourcing relationships allow us to offer market-competitive pricing on genuine parts.
- Fast Response: RFQ responses within 24 hours, with expedited options for critical downtime situations.
- Technical Support: Our team includes engineers with hands-on S7-1500 integration experience — we speak your language.
Frequently Asked Questions
- Q: Is the 6ES7590-0AA00-0AA0 included with S7-1500 modules or sold separately?
- A: Siemens includes one U-Connector with each S7-1500 I/O and functional module. However, spare connectors are essential for maintenance stock and rack expansions, which is why we offer them as standalone units.
- Q: Can I use a third-party U-Connector with my S7-1500 rack?
- A: Siemens strongly recommends using only genuine 6ES7590-0AA00-0AA0 connectors. Third-party alternatives may cause intermittent bus errors, void module warranties, and create unpredictable behavior in safety-critical applications.
- Q: What happens if a U-Connector is damaged or missing?
- A: The affected module and all downstream modules on the rack will lose backplane bus communication, resulting in CPU fault states and potential production stoppage. Replacement should be treated as a critical spare.
- Q: Do you provide export documentation for customs clearance?
- A: Yes. We provide commercial invoice, packing list, and certificate of origin. Additional documentation (e.g., EUR.1, Form A) can be arranged upon request.
- Q: What is the minimum order quantity (MOQ)?
- A: There is no strict MOQ. We accommodate single-unit emergency orders as well as bulk procurement for system integrators and OEMs.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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