Product Overview
When integrating new plant sections with existing legacy systems, the ABB CI855 (3BSE018133R1) provides a critical communication bridge. This MasterBus 300 (MB 300) communication interface connects the AC 800M controller to MB 300 networks, enabling seamless peer-to-peer communication between System 800xA and older controllers like Advant Controller 410, Advant Controller 450, and MasterPiece 200/1. The CI855 mounts on a TP853 baseplate with RJ45 connectors for two Ethernet ports, supporting network redundancy and simple DIN-rail mounting.
Key Technical Specifications
The CI855 operates at a transmission speed of 10 Mbit/s and handles up to 200 datasets per second. It consumes 150 mA typical at 24 V DC. The module supports line redundancy and hot swap, but not module redundancy. It connects to the CEX-Bus via the baseplate, with a maximum of 12 units on the CEX bus. The communication protocol is ABB's proprietary MasterBus 300, and the module acts as a master. Operating temperature range is 0 to +55 °C, with storage from -40 to +70 °C. The protection class is IP20 according to EN60529 and IEC 529. It weighs 700 g including the baseplate and measures 59 mm wide, 185 mm high, and 127.5 mm deep.
Industry Applications
In a typical upgrade scenario, a chemical plant running Advant Controller 410 on MB 300 can integrate a new process line using AC 800M controllers. The CI855 enables data exchange between the old and new sections without replacing the entire control system. This peer-to-peer communication reduces downtime and capital expenditure. Another application is in oil and gas facilities where multiple operator stations need clock synchronization across a mixed network of legacy and modern controllers. The CI855 supports clock synchronization and DataSet communication, ensuring consistent data flow.
Installation & Setup Guidance
Mount the CI855 on the TP853 baseplate, which provides RJ45 connectors for two Ethernet ports. Connect the baseplate to the CEX-Bus. Ensure the module is properly seated and secured. For network redundancy, connect both Ethernet ports to separate network switches. The module supports hot swap, so you can replace it without powering down the system. Verify that the 24 V DC supply can deliver at least 150 mA per module. Use standard RJ45 cables for Ethernet connections.
Compatibility & Integration
The CI855 is designed for use with ABB AC 800M controllers and the System 800xA platform. It communicates with legacy MB 300-based controllers such as Advant Controller 410, Advant Controller 450, and MasterPiece 200/1. It also works with HI Controller. The module integrates via the CEX-Bus and supports up to 12 units on the bus. It is compatible with ABB's MasterBus 300 protocol and provides line redundancy for reliable communication.
Selection Guide & Purchasing Advice
Before purchasing the CI855, verify that your system uses AC 800M controllers and requires MB 300 communication. Check that the TP853 baseplate is included or available separately. Confirm the 24 V DC power supply capacity. For new installations, consider the number of CEX-Bus units to stay within the 12-unit limit. SpareTechPLC stocks the ABB CI855 (3BSE018133R1) and can advise on compatibility with your existing system. Contact us for current availability and lifecycle status.
Frequently Asked Questions
Q: What is the transmission speed of the CI855?
A: The CI855 operates at 10 Mbit/s and can handle up to 200 datasets per second.
Q: Does the CI855 support module redundancy?
A: No, the CI855 does not support module redundancy. It supports line redundancy and hot swap.
Q: Can the CI855 be used with Advant Controller 410?
A: Yes, the CI855 enables peer-to-peer communication with Advant Controller 410, Advant Controller 450, and MasterPiece 200/1.
Q: What is the power consumption of the CI855?
A: The typical 24 V DC consumption is 150 mA.
Q: What certifications does the CI855 have?
A: The CI855 has CE marking, marine certificates from BV, DNV-GL, and LR, and complies with EU, UAE, and CN RoHS, as well as WEEE directive 2012/19/EU.
