Siemens 6ES7923-0BB00-0DB0 MPI/PROFIBUS DP Cable
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Key Product Information
Core fields for model confirmation and RFQ routing. Detailed product narrative remains below.
- Brand
- Siemens
- Primary Part Number
- 6ES7923-0BB00-0DB0
- Product Type
- PLC Communication Cable
- Series / Family
- SIMATIC S7-300
- Country of Origin
- DE
- Catalog Category
- Communication
- Warranty
- 12 months from invoice date
Siemens 6ES7923-0BB00-0DB0 MPI/PROFIBUS DP Connecting Cable — A Procurement Manager’s Acquisition Strategy
When a production line goes dark because a programming interface cable has failed, the cost is rarely measured in the price of the cable itself. Downtime on a mid-scale automotive stamping line can exceed $10,000 per hour. The Siemens 6ES7923-0BB00-0DB0 is the factory-specified MPI/PROFIBUS DP connecting cable for the SIMATIC S7-300 and S7-400 controller families — a component that sits at the intersection of commissioning, maintenance, and emergency recovery workflows. Its ubiquity across legacy S7 installations worldwide makes it a high-velocity MRO item, and its continued demand in brownfield retrofit projects means procurement teams must maintain reliable access to verified stock.
At siemensplc.com, we operate as a specialist industrial automation supplier with deep inventory positions in SIMATIC accessories. For the 6ES7923-0BB00-0DB0 specifically, we maintain buffer stock to support urgent MRO orders without the lead-time exposure that comes with routing through regional distributors. Whether you are a maintenance engineer replacing a worn cable on a running line or a project manager building a commissioning kit for a greenfield S7-300 installation, our sourcing infrastructure is structured to deliver verified product on your schedule.
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Procurement Specifications
| Part Number | 6ES7923-0BB00-0DB0 |
| Brand | Siemens |
| Product Series | SIMATIC S7 / PC Adapter Accessories |
| Cable Function | MPI / PROFIBUS DP Connecting Cable |
| Connector Interface | 9-pin Sub-D (RS-485), male-to-female |
| Protocol Support | MPI (187.5 kbps), PROFIBUS DP (up to 12 Mbps) |
| Compatible Adapter | PC Adapter USB A2 (6ES7972-0CB20-0XA0) |
| Compatible CPUs | SIMATIC S7-300 (CPU 312 to 319), S7-400 (CPU 412 to 417) |
| Compatible Software | STEP 7 V5.x, TIA Portal V13+ (via PC Adapter) |
| Shielding | Braided shield, industrial-grade PVC outer jacket |
| Weight (packaged) | Approx. 1,000 g |
| Country of Origin | Germany |
| Warranty | 12 months from invoice date |
| Standard Lead Time | 3–5 business days (in-stock orders); 7–14 business days (sourced orders). Express DHL/FedEx available for urgent requirements — contact us with your deadline. |
| Minimum Order Quantity | 1 unit (wholesale pricing available from 5 units) |
Total Cost of Ownership (TCO) Analysis
Procurement decisions for industrial communication accessories are frequently evaluated on unit price alone. This approach systematically underestimates the true cost exposure. A more rigorous TCO framework for the 6ES7923-0BB00-0DB0 must account for three cost categories: acquisition cost, downtime risk cost, and maintenance overhead.
Acquisition Cost: Sourcing through a specialist supplier like siemensplc.com rather than a national distributor typically yields 15–25% savings on list price for this category of accessory. For facilities maintaining a fleet of S7-300 programming stations — common in automotive, chemical, and utilities sectors — this differential compounds meaningfully across annual MRO budgets. Bulk procurement of 5–20 units for spare-parts kits further reduces per-unit cost and eliminates repeat sourcing cycles.
Downtime Risk Reduction: The 6ES7923-0BB00-0DB0 is a single point of failure for any S7-300/400 programming or diagnostic workflow. A facility without a verified spare on-site is one cable failure away from an unplanned maintenance event. At a conservative downtime cost of $5,000/hour for a mid-scale process line, the carrying cost of a spare cable is recovered in under three minutes of avoided downtime. Our in-stock position means replacement units ship same day for orders placed before 14:00 CST, materially reducing mean time to recovery (MTTR).
Warranty and Maintenance Overhead: Our 12-month warranty covers manufacturing defects and DOA units with replacement dispatched within 5 business days. This eliminates the administrative burden of warranty claims through multi-tier distribution chains. For maintenance teams operating under ISO 55001 asset management frameworks, documented warranty coverage from a traceable supplier also satisfies audit requirements for critical spare-parts sourcing.
CAPEX vs. OPEX Positioning: For project-phase procurement (commissioning kits, FAT setups), the 6ES7923-0BB00-0DB0 is a CAPEX line item with a defined useful life. For ongoing MRO, it transitions to OPEX. Sourcing from siemensplc.com supports both models: we issue formal commercial invoices with HS code documentation for CAPEX capitalization, and we support blanket purchase orders for OPEX-managed MRO programs.
Quality & Compliance Assurance
Every unit of the 6ES7923-0BB00-0DB0 supplied by siemensplc.com is subject to a documented inspection protocol before dispatch:
- 100% Genuine Product Commitment: We source exclusively from verified industrial channels with full traceability. Counterfeit cables are a documented risk in the SIMATIC accessories market — our inspection process includes label authentication, connector pin-count verification, and shielding continuity testing.
- Xiamen Customs Compliance: All export shipments are declared through Xiamen Customs with accurate HS code classification (HS 8544.42 for insulated electric conductors). Commercial invoices, packing lists, and certificates of origin are provided as standard documentation, supporting smooth import clearance in the EU, US, Southeast Asia, and the Middle East.
- Multi-Currency Payment Support: We accept USD, EUR, HKD, and CNY via T/T bank transfer, PayPal, and Western Union. For B2B accounts with established order history, net-30 payment terms are available upon credit review.
- RoHS and CE Compliance: Product supplied is consistent with RoHS 2 Directive (2011/65/EU) and CE marking requirements applicable to industrial communication accessories.
Strategic Sourcing from Xiamen
Xiamen is one of China’s five Special Economic Zones and home to one of the country’s top-five container ports by throughput volume. For industrial automation components destined for global markets, this geography offers structural logistics advantages that translate directly into procurement reliability.
Direct access to Xiamen Gaoqi International Airport enables air freight consolidation for time-critical orders, with DHL, FedEx, and UPS express services offering 2–5 day transit to major industrial hubs in Europe, North America, and Southeast Asia. Sea freight via Xiamen Port supports cost-optimized bulk shipments for facilities building strategic spare-parts inventories. Our warehouse is located within the Xiamen Free Trade Zone, which streamlines export documentation and reduces customs processing time for international orders.
For procurement teams managing multi-country supply chains, our Xiamen base also provides a single-source consolidation point for mixed SIMATIC accessory orders — reducing freight events, simplifying import documentation, and lowering per-unit landed cost compared to sourcing from multiple regional distributors.
Contact Information
Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
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Confirmation Process
We check the full part number, brand, series and visible nameplate information before quotation.
Sales confirms stock path, condition option, quantity and realistic lead time for export dispatch.
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