Product Details
The ABB 3BSC950089R3, also cataloged as the TK801V012 ModuleBus Extension Cable, operates as a dedicated hardware component for extending the electrical backplane bus across separate DIN rails within ABB S800 I/O systems. Used in conjunction with TB805/TB845 and TB806/TB846 bus optical port / extension modules, the cable provides physical signal continuity to interconnect distributed I/O clusters on a single electrical bus node.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3BSC950089R3 (TK801V012) |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.265 kg |
| Dimensions | 1.2 m length |
| Operating Temp | 0 to +55 deg C |
| Power Consumption | Passive bus interconnect (0 W) |
| Product Type | Extension Cables |
| System Platform | ABB S800 I/O |
| Cable Type | ModuleBus Extension Cable |
Backplane Bus Communication Velocity & I/O Density Scaling
The TK801V012 extension cable maintains standard backplane bus communication velocity across split DIN-rail configurations, permitting seamless I/O density scaling within a unified S800 I/O cluster. Internal shielding and verified impedance matching preserve high-frequency signal integrity between the master station module and downstream I/O bases, preventing packet dropouts or communication timing faults across the 1.2 m interface distance.
Frequently Asked Questions
Q: Which termination or bus interface modules are required to connect the TK801V012 cable?
A: The cable requires connection to TB805 or TB845 on the originating ModuleBus rail and TB806 or TB846 on the target extension rail.
Q: Does the TK801V012 cable support hot-swapping or live disconnection during operation?
A: Disconnecting the extension cable during operation breaks the electrical ModuleBus, causing immediate loss of communication to all downstream I/O modules; the cable must remain locked during rack operation.
Q: Does the cable require external power or driver hardware?
A: No, the assembly is a passive multi-conductor shielded cable that directly routes power rails and high-speed data lines between ModuleBus interface blocks.
Field Installation Guidelines
- De-energize the host I/O station backplane before mating or disconnecting the extension cable assembly.
- Route the cable along dedicated wire trays, avoiding tight bend radiuses below the manufacturer standard to prevent internal wire strain.
- Ensure both cable connectors are aligned correctly with the socket pins on the TB805/TB845 and TB806/TB846 interface blocks before pushing into place.
- Secure the integrated connector locking clips firmly to ensure continuous chassis earth shield grounding across the cable assembly.
- Keep the cable separate from high-voltage motor feeds and AC distribution wiring to avoid electromagnetic noise coupling onto the ModuleBus signal lines.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
The Shift to Flexible IO Modules in Modern Industrial Automation
Traditional control systems rely on dedicated Input Output (IO) cards for industrial automation. Each conventional module processes a single signal type, such as Digital Input (DI), Digital Output (DO), Analog Input (AI), or Analog Output (AO). A standard 16-channel card accepts only one specific channel type across all ports. This inflexible hardware design often creates severe engineering bottlenecks during project execution. Engineers frequently must install entirely new cards to accommodate a single extra sensor. Consequently, late design changes increase control cabinet space requirements and drive up project costs.
DCS Commissioning Steps in Industrial Automation Projects
Commissioning a Distributed Control System (DCS) represents a crucial milestone when deploying modern process automation infrastructure. Field engineers must execute systematic verification steps to transition complex control hardware from static installation to dynamic plant control. Proper commissioning ensures that controllers, I/O modules, network switches, and HMI software operate in strict compliance with engineering design specifications before introducing live process fluids.
PLC and DCS Control System Spares Strategy: Engineering Guidelines
Modern factory automation relies on high-speed fiber optic backbones to link distributed control systems across noise-intensive industrial environments. Unlike copper wiring, optical fibers transmit data via light pulses, making them completely immune to electromagnetic interference (EMI). Field engineers must master optical cable joining and fusion splicing techniques to guarantee low-loss data transmission across critical Programmable Logic Controller (PLC) and Distributed Control System (DCS) nodes.