ABB CI851 3BSE018116R1 Interface Module

The ABB CI851 (3BSE018116R1) Interface Module is a key component within ABB’s AC 800M automation platform, specifically designed to integrate PROFIBUS-DP networks into the ABB Control System. This module serves as a PROFIBUS-DP Master, allowing the AC 800M controller to communicate with decentralized field devices such as I/O modules, drives, sensors, and actuators in real time.

Equipped with a DP-V1 interface, the CI851 ensures robust, high-speed, and deterministic communication with devices compliant with the PROFIBUS-DP standard. Its seamless plug-in design for the PM851/PM861/PM862/PM864 controllers makes it highly adaptable for process automation in demanding industrial environments.

Manufactured with industrial-grade components and ABB’s stringent quality standards, the CI851 ensures high availability and compatibility across multiple automation applications, from power generation and oil refining to advanced manufacturing systems.

Product Specifications

Product Applications

1. Process Industries – Seamless integration of PROFIBUS field instruments in continuous process industries such as chemical, oil & gas, and pharmaceuticals.

2. Power Generation – Used in turbine and boiler control systems requiring robust fieldbus communication.

3. Water and Wastewater Plants – Interfaces decentralized PROFIBUS I/O systems for level, flow, and chemical dosing control.

4. Metals and Mining – Connects intelligent field devices to AC 800M in ore processing and smelting plants.

5. Factory Automation – Ideal for PLC to field device communication, including robotic lines, packaging units, and conveyor systems.

6. Marine and Offshore Systems – Ensures reliable field communication in harsh environments with high EMI resistance.

Product Advantages

• High-Speed Data Exchange: Supports up to 12 Mbps transmission for time-sensitive industrial processes.

• PROFIBUS-DP Master Functionality: Enables centralized control of field devices with high reliability.

• Modular Design: Easily slots into the AC 800M controller chassis without extra configuration steps.

• Flexible Integration: Compatible with many PROFIBUS-enabled devices regardless of vendor.

• Reduced Wiring Costs: Uses a single PROFIBUS-DP cable to connect multiple field devices, lowering infrastructure costs.

• Automatic Baud Rate Detection: Simplifies configuration during system commissioning.

• Diagnostic Capabilities: Real-time fault detection and status monitoring via LEDs and control software.

• Longevity and Support: Long lifecycle product with ABB’s global technical support and documentation.

• Robust Construction: Designed for 24/7 operation in vibration-prone and harsh environments.

• Certified Compliance: Meets international industrial automation and safety standards.

Frequently Asked Questions (FAQ)

1. What is the primary use of the CI851 module?

   It serves as a PROFIBUS-DP Master for ABB’s AC 800M controllers, enabling communication with field devices.

2. Which controllers are compatible with the CI851?

   It is compatible with PM851, PM856, PM861, PM864, PM865, and PM866.

3. Does CI851 support redundant configurations?

   Yes, CI851 can be configured in redundancy for high availability systems.

4. What kind of devices can I connect via CI851?

   You can connect PROFIBUS-DP slaves such as I/O modules, VFDs, intelligent sensors, and actuators.

5. Is the baud rate fixed or automatic?

   CI851 supports automatic baud rate detection up to 12 Mbps.

6. Can CI851 be hot-swapped?

   No, the system must be powered down or placed in safe mode before replacing the module.

7. Does the module require additional power supply?

   No, it receives power directly through its terminal unit (TU851/TU852).

8. How many field devices can it manage?

   It can manage up to 124 PROFIBUS-DP slave devices.

9. Are software tools needed for configuration?

   Yes, ABB’s Control Builder software is used to configure CI851 and connected field devices.

10. Where is the CI851 typically installed?

    It is mounted in the controller rack via terminal units such as TU851 or TU852.