ABB TB811 3BSE008568R1 Modulebus Optical Port – S800 I/O Communication Interface
Imagine a critical process control loop in a petrochemical plant or a high-speed paper machine suddenly losing communication between its AC 800M controller and the S800 I/O field modules. Without a reliable Modulebus interface, the entire distributed I/O network goes silent — operators lose visibility, safety interlocks may trip, and unplanned downtime costs mount by the minute. The ABB TB811 3BSE008568R1 Modulebus Optical Port is the fiber-optic communication backbone that prevents exactly this scenario, ensuring deterministic, noise-immune data exchange in the most demanding industrial environments.
The TB811 (part number 3BSE008568R1) occupies a pivotal position within ABB’s S800 I/O series — the industry-standard distributed I/O platform designed for seamless integration with the AC 800M Process Automation Controller. As a Modulebus Optical Port, it converts the electrical Modulebus signals to fiber-optic transmission, delivering galvanic isolation and immunity to electromagnetic interference across long cable runs. Deployed in thousands of installations across power generation, oil & gas, pulp & paper, and chemical processing worldwide, the TB811 is a cornerstone of ABB’s System 800xA and Freelance automation architectures.
Technical Specifications
- Part Number: TB811 / 3BSE008568R1
- Manufacturer: ABB
- Product Series: S800 I/O
- Compatible Controller: AC 800M
- Function: Modulebus Optical Port (fiber-optic Modulebus interface)
- Communication Interface: Modulebus (optical fiber)
- Isolation: Galvanic isolation via fiber-optic link
- Weight: Approx. 40 g
- Compliance: CE marked; designed to IEC/EN industrial standards
Note: All specifications are based on ABB published documentation. Konmask.com does not fabricate or alter manufacturer specifications.
Key Features & Benefits
- Fiber-Optic Modulebus: Eliminates ground loops and EMI susceptibility — critical in high-voltage switchgear rooms and variable-frequency drive environments.
- Plug-and-Play Integration: Designed as a native S800 I/O component; no additional configuration hardware required for standard AC 800M topologies.
- Extended Cable Reach: Fiber-optic links support longer distances than copper Modulebus, enabling flexible cabinet and field-panel layouts.
- High Reliability: ABB’s S800 platform is engineered for 24/7 continuous operation in process industries with MTBF figures exceeding industry averages.
- Compact Form Factor: Mounts directly on S800 I/O rail; minimal footprint preserves cabinet space.
- System 800xA Compatible: Fully supported within ABB’s System 800xA DCS and Freelance controller environments.
Industry & Equipment Applications
- Oil & Gas: Offshore platform DCS, pipeline SCADA, compressor control panels
- Power Generation: Turbine control systems, boiler management, substation automation
- Pulp & Paper: Machine drive coordination, stock preparation, winder control
- Chemical & Petrochemical: Reactor management, distillation column control, safety instrumented systems
- Water & Wastewater: Pump station automation, SCADA integration
- Metals & Mining: Rolling mill drives, conveyor systems, smelter process control
System Integration & Compatible Parts
The TB811 3BSE008568R1 is designed to work within the following ABB ecosystem components:
- Controllers: ABB AC 800M (PM851, PM856, PM860, PM861, PM864, PM866 series)
- I/O Modules: S800 I/O modules (AI810, AO810, DI810, DO810, DI811, AI820, etc.)
- I/O Bases: TB820, TB840, TB845 terminal bases
- Related Communication Modules: CI854, CI857, CI858, CI860 fieldbus interfaces
- DCS Platform: ABB System 800xA, Freelance 800F
When sourcing replacement or expansion parts, always cross-reference the 3BSE008568R1 part number to ensure hardware revision compatibility with your existing S800 I/O cluster.
Our Quality Assurance Process
- Source Verification: All units are sourced from authorized ABB distributors or verified surplus channels with full traceability documentation.
- Visual & Functional Inspection: Each TB811 undergoes physical inspection for connector integrity, label authenticity, and housing condition before dispatch.
- Anti-Static Packaging: Shipped in ESD-safe packaging with moisture barrier bags to protect sensitive optical components.
- Documentation: Certificate of conformity and test records available upon request for critical process applications.
How to Order
- Submit an inquiry via the Contact / RFQ form on this page or email support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Our team will respond within 1 business day with availability, lead time, and a formal quotation.
- Upon PO confirmation, we arrange secure packaging and international freight (DHL / FedEx / UPS / sea freight).
Why Choose Konmask.com?
- ✅ Industrial Automation Specialists: Focused exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
- ✅ Global B2B Supply: Serving engineering firms, system integrators, and MRO teams across 50+ countries.
- ✅ Fast Inquiry Response: Dedicated technical sales team responds within 24 hours.
- ✅ Competitive Pricing: Direct sourcing relationships enable cost-effective pricing for both single units and bulk orders.
- ✅ Secure International Shipping: Full export documentation, commercial invoice, and packing list provided for customs clearance.
Frequently Asked Questions
- Q: Is the TB811 the same as 3BSE008568R1?
- A: Yes. TB811 is the ABB product name and 3BSE008568R1 is the full catalog part number. Both refer to the identical Modulebus Optical Port module.
- Q: Which ABB controllers is the TB811 compatible with?
- A: The TB811 is designed for use with ABB AC 800M series controllers within the S800 I/O distributed I/O system.
- Q: Can I use the TB811 in a System 800xA environment?
- A: Yes. The S800 I/O platform, including the TB811, is fully supported within ABB System 800xA DCS architectures.
- Q: Do you supply new or refurbished units?
- A: We supply both new-in-box and tested surplus units. Condition is clearly stated in the quotation. Contact us to specify your preference.
- Q: What is the lead time for the ABB TB811?
- A: Lead time varies by stock availability. Submit an RFQ and we will confirm within 1 business day.
- Q: Do you provide export documentation?
- A: Yes. We provide commercial invoice, packing list, and certificate of origin for all international shipments.
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Original Source: https://Konmask.com
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