Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Advantages and Features
- Precise Bus Termination: Ends the CEX-Bus line with no stubs or open ends, eliminating reflections and ensuring clean signal integrity across the entire network.
- Standard Connector: 25-pin DB25P male connector with screw fixing for secure, tool-free installation.
- Compact & Lightweight: Slim 55 mm (L) x 50 mm (W) x 16 mm (H) dimensions, net weight only 0.04 kg — ideal for tight cabinets or modular backplanes.
- High Reliability & RoHS Compliant: No RoHS declaration needed; fully compatible with ABB AC 800M hardware and 800xA software (Version 4.0+); long lifecycle support in legacy and modern installations.
- Easy Integration: Plug-and-play module that integrates seamlessly with AC 800M controllers, CI801/CI840 communication interfaces, and prefabricated CEX-Bus cables.
- Proven Performance: Mandatory termination ensures zero bus errors, reduced downtime, and reliable operation in harsh industrial environments.
Application Cases in Application Fields
- Process Industry (Chemical, Oil & Gas, Power Plants): Reliable fieldbus communication in AC 800M-based DCS for real-time control of valves, pumps, and sensors.
- Manufacturing & Automation: Discrete/sequential control in 800xA systems for packaging lines, conveyors, and material handling where CEX-Bus stability is critical.
- Marine & Offshore: Coated or marine-rated applications requiring noise-free bus termination for safety-critical systems.
- Legacy System Upgrades: Modernization of AC 800M or 800xA installations while maintaining existing CEX-Bus infrastructure.
- Any AC 800M Network: Essential for every CEX-Bus segment to achieve full bus performance and prevent intermittent faults.
Comparisons with Competing Products
- Vs. Siemens SIMATIC CP or Emerson Ovation fieldbus terminators: ABB TB850 offers native AC 800M / 800xA protocol compatibility and exact 25-pin DB25P termination without adapters; competitors often require additional gateways or converters for legacy ABB systems.
- Vs. Yokogawa or generic Ethernet/fieldbus terminators: TB850 provides zero-configuration plug-and-play termination tailored for CEX-Bus, reducing setup time and system complexity vs. third-party solutions.
- Vs. ABB’s own AC 800M communication modules (e.g., CI801 without terminator): TB850 is the mandatory final step to complete the bus topology and prevent reflection issues that generic modules cannot address.
- Vs. Non-ABB DCS terminators: Superior long-term reliability, RoHS status, and direct 800xA integration deliver lower long-term drift and higher uptime in ABB ecosystems.
Selection Suggestions and Precautions
Selection Suggestions: Essential for every AC 800M installation using CEX-Bus. Pair with CI801/CI840 communication interfaces, TU series termination units, and full AC 800M controller modules (e.g., AI860, DI920). Recommended for applications requiring maximum bus stability and <1 ms cycle times.
Precautions:
- Install only on the last unit of the CEX-Bus network (no further modules beyond TB850).
- Use with compatible 24 VDC CEX-Bus voltage and shielded twisted-pair cables.
- Avoid installation in hazardous areas without proper ATEX/IECEx certification (standard version is non-incendive).
- Proper grounding and cable shielding per IEC 61000-4-4 and ABB guidelines required.
- Confirm compatibility with 800xA software version before deployment.
Recent Hot Selling Models from the Same Brand (ABB AC 800M Series)
- TB850 3BSC950193R1 – This CEX-Bus Terminator (top seller for network completion).
- BC810 – CEX-Bus Interconnection Unit (frequently paired for network expansion).
- CI801 – Communication Interface 801 (essential for CEX-Bus master/slave operation).
- CI840 – Communication Interface 840 (modern redundant version rising in new 800xA installs).
- TU837 – Extended Module Termination Unit (popular companion for I/O clusters).
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