New TK801V006 ABB S800 I/O Shielded ModuleBus Connector

Product Overview

The ABB TK801V006 (3BSC950089R2) functions as a high-performance, shielded ModuleBus extension cable for the ABB S800 I/O family. This 100% brand new, original 0.6-meter cable bridges the electrical ModuleBus between different DIN rails, allowing engineers to distribute I/O modules across multiple rows while maintaining a single logical bus. By utilizing specialized shielding and D-sub 25-pin connectors, the TK801V006 ensures synchronized data transfer and signal integrity across System 800xA, Symphony Plus, and Freelance automation platforms. It serves as a mechanical necessity for high-density cabinet layouts where a single DIN rail cannot accommodate the required number of I/O clusters.

Technical Specifications

The TK801V006 utilizes industrial-grade shielding to maintain high-frequency signal stability within the ModuleBus architecture.

Engineering Advantages

The ABB TK801V006 3BSC950089R2 solves critical spatial and electrical challenges in distributed I/O configurations:

• Multi-Rail Mounting Flexibility: This cable overcomes the physical limitations of a single DIN rail. By extending the ModuleBus across 0.6 meters, it allows for the mounting of I/O modules on separate rails or in stacked configurations, optimizing cabinet space without sacrificing communication speed.

• Superior EMI/RFI Shielding: Industrial environments generate significant electromagnetic noise. The TK801V006 features a robust shielded design that repels interference from variable frequency drives and high-voltage switchgear, preventing data packet loss and "bus fault" errors.

• Plug-and-Play Integration: The factory-terminated D-sub 25 connectors ensure a secure mechanical fit with TB805/TB845 and TB806/TB846 termination units. This eliminates the need for manual wiring or field crimping, significantly reducing installation time and preventing wiring-related signal failures.

• Maintained Bus Timing: ABB engineers this cable specifically to meet the impedance requirements of the S100 and S800 I/O bus systems. It maintains the deterministic timing required for high-speed signal processing (up to 50 kHz), ensuring the controller perceives the extended modules as if they were directly adjacent.

FAQs

• Can I daisy-chain multiple TK801V006 cables to reach longer distances?

  The ModuleBus has strict electrical length limitations to maintain signal timing. While you can extend the bus using TB805 and TB806 modules, we recommend adhering to the total bus length specifications outlined in the S800 I/O User Manual to avoid communication timeouts.

• Which termination modules must I use with this cable?

  The TK801V006 requires a TB805 or TB845 Bus Outlet at the end of the first rail and a TB806 or TB846 Bus Inlet at the start of the subsequent rail. The cable bridges these two components to complete the electrical circuit.

• Is this cable compatible with non-ABB D-sub 25 peripherals?

  No. Although it utilizes a standard D-sub 25 connector, the internal pin-out and shielding are proprietary to the ABB ModuleBus. Connecting generic serial cables can cause permanent electrical damage to the I/O modules and the controller.

• What should I do if the ModuleBus shows an intermittent fault after installation?

  Verify that the latching screws on the D-sub connectors are fully tightened. Loose connections are the primary cause of intermittent bus errors. Also, ensure the cable does not run directly parallel to high-current AC lines, which can overwhelm the internal shielding.