Industry Trends in Fieldbus Communication

Industrial automation increasingly relies on robust fieldbus networks to connect controllers and devices across manufacturing plants. The demand for reliable, high-speed communication interfaces continues to grow as facilities adopt more distributed control architectures. ABB's CI869 addresses these needs by providing a dedicated connection to the AF 100 fieldbus through twisted pair cabling.

Introducing the ABB CI869

PetroPartsOnline now offers the ABB CI869, a communication interface designed for the AC 800M controller series. This expansion unit integrates CEX-Bus logic, a communication unit, and a DC/DC converter that draws power from the +24 V supply via the CEX-Bus. Engineers can configure the CI869 for both redundant cables and redundant communication interfaces, enhancing system reliability.

Technical Specifications and Performance

The CI869 operates as a slave device on the ABB Advant Fieldbus 100 protocol, transmitting data at 1.5 Mbit/s. It supports line redundancy and module redundancy, and it allows hot swapping without system interruption. The unit consumes a typical 160 mA from the 24 V supply and can connect up to 12 units on the CEX bus.

Applications in Modern Manufacturing

In oil and gas refineries, the CI869 enables seamless data exchange between AC 800M controllers and other AF 100 stations or devices. For example, a refinery can use two CI869 units to achieve Advant Fieldbus 100 redundancy, ensuring continuous operation even if one communication path fails. The interface also works with AC 800M High Integrity systems for safety-critical processes.

Compatibility and Integration

The CI869 attaches directly to the AC 800M controller, allowing it to behave as an AF 100 station. It can communicate with other AC 800M controllers, AC 160 systems, or a connectivity server running the AC 100 OPC Server. The AC 100 OPC Server requires the AF 100 hardware interface CI527A installed in the same node, while the CI869 connects to the controller network.

Frequently Asked Questions About the CI869

What is the transmission speed of the ABB CI869?

The CI869 supports a transmission speed of 1.5 Mbit/s on the ABB Advant Fieldbus 100 protocol, as specified in the product data.

Can the CI869 be used in redundant configurations?

Yes, the CI869 supports both line redundancy and module redundancy. Users can configure it for redundant cables and redundant communication interfaces, and it also supports hot swapping.

What is the operating temperature range for the CI869?

The CI869 operates in temperatures from +5 to +55 °C (+41 to +131 °F) and can be stored from -40 to +70 °C (-40 to +158 °F). It has an IP20 protection class according to EN60529 and IEC 529.

How many CI869 units can be connected on the CEX bus?

The CI869 allows up to 12 units on the CEX bus, providing flexibility for expanding communication nodes in a control system.

Conclusion and Outlook

The ABB CI869 offers a reliable, redundant communication interface for AF 100 fieldbus networks, making it a valuable component for modern industrial automation. As facilities continue to upgrade their control systems, the CI869 provides a proven solution for integrating AC 800M controllers. Please verify current lifecycle status and availability with PetroPartsOnline before ordering.