Description

The ABB TK811V050 (Order Number: 3BSC950107R2) is a pre-assembled, high-quality 5-meter duplex Plastic Optical Fiber (POF) cable specifically designed for ABB’s S800 distributed I/O systems and AC 800M controllers. This cable utilizes durable plastic fiber optics to transmit data via light pulses, providing complete galvanic isolation and immunity to electromagnetic interference (EMI), radio frequency interference (RFI), and ground potential differences.

In harsh industrial environments where electrical noise from motors, VFDs, and welding equipment can corrupt copper signals, the TK811V050 ensures reliable, error-free communication. The “duplex” configuration allows for simultaneous two-way data transmission, essential for real-time control loops. With a standard length of 5 meters, it is ideal for connecting adjacent cabinets, bridging gaps within control panels, or linking nearby I/O stations without the need for custom field termination. The 3BSC950107R2 is a critical component for maintaining network integrity in ABB System 800xA and other DCS architectures.

Application Scenarios

A steel rolling mill experienced frequent communication faults between its main AC 800M controller and a local S800 I/O station located 4 meters away inside the same control room. Despite being indoors, the massive magnetic fields generated by the nearby rolling mill drives were inducing noise into the standard copper Profibus DP cables, causing “Station Lost” alarms and production stops. The engineering team replaced the copper link with an ABB TK811V050 (3BSC950107R2) 5-meter duplex POF cable. The plastic fiber optic link provided total immunity to the magnetic interference. Since the installation, the communication link has operated with 100% reliability, eliminating nuisance trips and ensuring precise control of the rolling process.