ABB BC810 CEX-Bus Interconnection Unit Redundant

ABB BC810 (3BSE031155R1) CEX-Bus Interconnection Unit

Product Introduction

The BC810, also known as 3BSE031155R1, connects and segments the CEX-Bus in ABB control systems. This unit increases system availability by dividing the bus into separate segments. It works perfectly with redundant communication interfaces. Additionally, the BC810 supports online replacement of the CPU baseplate without disturbing CEX traffic. The package includes two main parts: the TP857 baseplate and the power supply/logic board.

Technical Specifications

The BC810 requires a 24 V DC nominal power supply. Input voltage can vary between 19.2 V DC and 30 V DC. Typical power consumption is 50 mA, with a maximum of 70 mA. Power dissipation sits at 1.2 W typical. The unit supports redundancy and high integrity applications. Hot swap functionality is also supported.

Key parameters include:

• Redundancy: Yes

• High Integrity: Yes

• Hot swap: Supported

• Power supply: 19.2 to 30 V DC

• Typical current: 50 mA

The baseplate holds the CEX-Bus connectors and external power terminals. It also contains the external power voting diode and a fuse. The logic board carries the 3.3 V converter, drivers, and the interconnection cable connector.

Mechanical and Environmental Data

The BC810 measures 59 mm wide, 185 mm high, and 127.5 mm deep. Total weight for the BC810K02 package is 1.5 kg. Operating temperature ranges from +5°C to +55°C. Storage temperature goes from -40°C to +70°C. Relative humidity can reach 5% to 95% (non-condensing). Protection class is IP20 according to EN60529.

For safety, the unit holds UL 61010-1 and UL 61010-2-201 certification. It also carries cULus Class 1, Zone 2 hazardous location approval (AEx nA IIC T4, Ex nA IIC T4Gc X). Marine certificates include ABS, BV, DNV-GL, and LR. Furthermore, the 3BSE031155R1 complies with RoHS (EN 50581:2012) and WEEE (2012/19/EU).

Compatibility and System Integration

The BC810 works with many PM8xx processor modules. Compatible CPUs include PM857, PM861A, PM862, PM863, PM864A, PM865, PM866, PM866A, PM867, and PM891.

In a fully redundant system, two interlinked BC810 units connect a primary and backup CPU pair. This setup allows online replacement of the CPU baseplate without stopping CEX bus traffic. However, if the BC810 itself must be replaced, all traffic to the connected CEX segment will stop.

The CEX-Bus extends onboard communication ports with additional interface units. You can also use redundant communication interfaces on this bus. The BC810 improves availability by dividing the bus into separate segments.

Installation Guidelines

First, mount the TP857 baseplate onto a DIN rail. The baseplate grounds itself through metal housing parts. Next, attach the power supply/logic board onto the baseplate. Then, connect the external 24 V DC power to the L+ and L- terminals. After that, wire the CEX-Bus cables to the appropriate connectors. Finally, insert the compatible CPU module into the system.

Always turn off power before installing or removing the BC810. Use the hot swap feature only for CPU replacement, not for the BC810 itself. For detailed steps, refer to the original ABB hardware manual.

Packaging List

• 1 x BC810 CEX-Bus interconnection unit (logic board)

• 1 x TP857 baseplate

• 1 x quick installation guide

Note: No certificates or warranty documents are included.

Shipping

All orders ship via FedEx, UPS, or DHL. Tracking numbers are provided after dispatch.

Frequently Asked Questions (FAQ)

1. Can I replace the BC810 while the system is running?

No. The BC810 does not support hot swap for its own replacement. When you replace it, all traffic to the connected CEX segment will stop. You must shut down that segment first.

2. Which CPUs are compatible with the 3BSE031155R1?

The BC810 works with many PM8xx modules. These include PM857, PM861A, PM862, PM863, PM864A, PM865, PM866, PM866A, PM867, and PM891.

3. Does the BC810 support redundant communication interfaces?

Yes. This is one of its main benefits. The BC810 supports redundant communication interface units on the CEX-Bus and improves overall system availability.

4. What is the purpose of the TP857 baseplate?

The TP857 baseplate holds all external connectors. It provides the CEX-Bus ports and power terminals. It also contains a voting diode and a fuse for protection.

5. Is the BC810 suitable for hazardous locations?

Yes. The 3BSE031155R1 carries cULus Class 1, Zone 2 certification. It is rated AEx nA IIC T4 and Ex nA IIC T4Gc X for use in non-incendive environments.