Overview

The ABB CI741F (3BDH000396R0005) Bus Module is a communication interface unit designed for ABB’s AC800M controller family within the System 800xA distributed control system (DCS).
It provides reliable connectivity between controllers and field devices, ensuring stable data exchange across industrial networks.
Moreover, the CI741F supports redundant communication, high-speed data transfer, and robust isolation, making it ideal for mission-critical automation environments.

Technical Data

Typical Applications

The ABB CI741F Bus Module is widely applied in industrial automation and process control systems:

• Process industries: Provides reliable communication between controllers and field devices in chemical, oil & gas, and pharmaceutical plants.

• Power generation & utilities: Ensures stable data exchange in distributed control systems for substations and plants.

• Manufacturing automation: Supports production lines with high-speed communication and redundancy.

• Infrastructure systems: Applied in transportation and water treatment facilities for uninterrupted control.

FAQ

Q1: What is the primary function of the ABB CI741F?
A1: It serves as a bus communication interface for ABB AC800M controllers within System 800xA.

Q2: Which communication protocols are supported?
A2: It supports PROFIBUS DP, FOUNDATION Fieldbus, and Modbus.

Q3: Can the CI741F operate in harsh environments?
A3: Yes, it supports wide operating and storage temperature ranges with industrial-grade durability.

Q4: How long is the expected service life?
A4: Typically more than 10 years under rated conditions.

Q5: Where is this bus module typically used?
A5: It is applied in process industries, utilities, manufacturing automation, and infrastructure systems.