ABB CBC11-P 3BDH000734R1 Bus Coupler Module

Product Description

The CBC11-P (3BDH000734R1) is a bus coupler module for ABB Freelance 2000 DCS. It realizes bus signal isolation and expansion, used for interconnecting different bus segments inside the S800 I/O rack, extending the bus distance and improving anti-interference performance. It forwards cyclic I/O data and diagnostic messages between the controller and field I/O modules, and is often used together with CBI20-P bus interface module.

Features

• Part No: CBC11-P, 3BDH000734R1, Brand: ABB
• Bus coupler for Freelance 2000 S800 I/O rack
• Internal bus signal isolation and signal amplification
• -P = conformal coated version, for humid, dusty industrial cabinet environments
• Supports hot swap during rack operation for maintenance
• Built-in bus error detection, link status monitoring and fault diagnosis
• Front panel LED indicators for power, bus link and fault status
• Galvanic isolation between bus segments to suppress ground loop noise
• Works with CBI20-P, AI/AO/DI/DO S800 I/O modules in the same system

Applications

• Chemical, water treatment, power plant Freelance 2000 DCS cabinet
• S800 remote I/O bus extension and isolation
• Process control bus networking for long-distance I/O racks
• Legacy Freelance 2000 system spare replacement and retrofit
• Industrial distributed control I/O subsystem bus signal isolation

FAQ

Q: What does -P mean in CBC11-P?
A: -P stands for conformal coating variant, anti-corrosion and moisture resistant for harsh industrial environments.

Q: What is the difference between CBC11-P and CBI20-P?
A: CBI20-P is the bus interface connecting controller to S800 I/O bus; CBC11-P is the bus coupler for bus segment isolation and extension inside I/O rack.

Q: Is this module discontinued?
A: Freelance 2000 series is legacy DCS hardware, original production stopped, supplied as surplus, refurbished and tested spare parts only.

Q: Can it work with CCC30-2-P?
A: Yes, they belong to the same Freelance 2000 platform and can be deployed in the same control system.