CI858 DriveBus ABB Communication Interface Unit

Hardware Specifications

ABB DriveBus Communication and Industrial Control Integration

The CI858 provides ABB DriveBus master communication between AC 800M controllers and connected drive systems. It transfers drive control commands, status feedback, and diagnostic information through the optical communication interface.

The module uses the ABB CEX-Bus connection for system integration and receives its 24 VDC supply through the controller extension bus. Therefore, installation requires correct bus positioning, power distribution, and connector alignment.

For ABB industrial control architectures, the CI858 supports deterministic drive communication behavior and enables coordinated drive management within controller-based automation systems. Additionally, its optical interface reduces susceptibility to electrical interference in industrial environments.

Backplane Bus Communication and Drive Interface Characteristics

The ABB CI858 uses ABB controller extension bus communication to exchange module data with the host automation system. The interface operates as a dedicated DriveBus master and manages communication timing between the controller and connected drives.

Furthermore, the optical transmission interface provides galvanic separation from electrical noise sources commonly present in motor control installations. Proper fiber routing and connector protection maintain communication signal integrity during operation.

The module supports ABB drive integration requirements where synchronized control data exchange, diagnostic transfer, and drive status monitoring are required within AC 800M based systems.

Frequently Asked Questions

Q: What communication protocol does the ABB CI858 support?
A: The CI858 supports ABB DriveBus communication and operates as a master interface for ABB drive device communication.

Q: How does the CI858 receive operating power?
A: The module receives +24 VDC power through the ABB CEX-Bus connection. The typical current consumption is approximately 200 mA.

Q: Does the CI858 use electrical or optical communication connectors?
A: The CI858 uses optical connectors for DriveBus communication, providing separation from electrical interference sources.

Field Installation Guidelines

• Install the CI858 module according to ABB AC 800M hardware configuration requirements and approved controller mounting arrangements.
• Verify the CEX-Bus connection before applying system power to ensure correct module communication and power distribution.
• Inspect optical connectors for contamination, mechanical damage, or incorrect seating before commissioning.
• Route optical communication cables separately from high-power motor cables and high-current switching circuits.
• Confirm module addressing and controller configuration settings before enabling DriveBus communication.
• Use appropriate grounding and cabinet wiring practices for the complete automation system installation.