The ABB CI871K01 (Product ID: 3BSE056767R1) is a high-performance PROFINET IO communication interface module designed for the AC 800M controller family within the ABB Ability™ System 800xA architecture. This module serves as a master interface, enabling the AC 800M controller to communicate seamlessly with various PROFINET IO devices—such as remote I/O, drives, and sensors—over standard Ethernet.
Product Introduction
The CI871K01 kit is a comprehensive package that includes the CI871 communication interface and the TP867 baseplate. By utilizing the PROFINET IO protocol, this module bridges the gap between high-speed industrial Ethernet and process control logic. It is particularly valued in modern automation for its ability to handle large volumes of data with high deterministic precision, making it an essential component for distributed control systems (DCS) requiring real-time device integration.
Product Parameters (Datasheet)
| Parameter | Specification |
| Product ID | 3BSE056767R1 |
| Model Type | CI871K01 |
| Communication Protocol | PROFINET IO |
| Protocol Role | Master |
| Transmission Speed | 10/100 Mbit/s (Full Duplex) |
| Max Units on CEX-Bus | 12 modules per controller station |
| Connector Type | RJ-45 (Female, 8-pin) |
| Typical 24V Consumption | 160 mA |
| Dimensions (WxHxD) | 59 mm x 186 mm x 127.5 mm |
| Net Weight | 0.7 kg |
| Protection Class | IP20 (according to EN60529) |
| Certification | CE, UL 61010-1, G3 (ISA 71.04) |
Country of Origin
- Origin: Estonia / Sweden (depending on manufacturing batch)
Application Areas
The CI871K01 is primarily deployed in industries that require the high speed and flexibility of PROFINET:
- Power Generation: Connecting distributed turbine control sensors and motor drives.
- Chemical & Petrochemical: Managing remote I/O stations across large-scale refineries.
- Water & Wastewater: Integrating various field instruments and pumping station controllers.
- Pulp & Paper: Synchronizing high-speed drives and quality control sensors on production lines.
- Discrete Manufacturing: Controlling robotic arms and assembly line peripherals through a centralized AC 800M station.
Product Usage Instructions
1. Hardware Assembly
The module consists of the CI871 unit and the TP867 baseplate.
- Mount the TP867 baseplate onto a standard 35mm DIN rail.
- Slide the CI871 module into the baseplate until the locking mechanism clicks.
- Ensure that the baseplate and the unit have compatible alpha codes to prevent damage during hot insertion.
2. Network Connectivity
- Connect the Ethernet cable to the CH1 port on the TP867 baseplate.
- Note: Only CH1 is used for PROFINET IO communication; CH2 is typically reserved for other diagnostic or future functions depending on the firmware.
- Use an industrial-grade Ethernet switch for connections to remote PROFINET IO slaves.
3. Software Configuration
- Use ABB Control Builder M to add the CI871 to the hardware tree of your AC 800M controller.
- Configure the IP address and Station Name for the master.
- Import the GSDML files of the slave devices to define the I/O mapping.
4. Maintenance & Hot Swap
The CI871K01 supports Hot Swap functionality. You can replace a faulty module while the controller is running, provided the baseplate remains undisturbed. Always ensure the replacement unit has the same firmware version or is compatible with the existing software configuration to avoid process interruptions.
Product Related News
In the shift toward Industry 4.0, ABB has optimized the CI871 series to support enhanced cybersecurity features. The latest firmware updates for the CI871 include reinforced protection against unauthorized network access and improved diagnostic reporting within the System 800xA 6.1.1 and 6.2 environments. Furthermore, ABB has streamlined the Hardware Selector tools to make it easier for engineers to verify the power consumption and bus loading of the CI871 when designing high-density controller racks.
Product Technical Description
The CI871 expansion unit contains the CEX-Bus logic, a dedicated communication processor, and a DC/DC converter. It draws its 24V power directly from the CEX-Bus, which is powered by the AC 800M CPU or a separate bus power supply. The module utilizes a high-speed RISC processor to manage the PROFINET stack, offloading the communication tasks from the main CPU to ensure that control loop execution remains deterministic. It also supports G3 conformal coating as standard, allowing for reliable operation in corrosive environments.
Product Q&A (Common Questions)
Q: Is the CI871K01 compatible with all AC 800M controllers? A: It is compatible with most AC 800M CPUs (like PM861, PM864, PM866). However, always check the minimum firmware requirements (typically System 800xA version 5.1 or later) to ensure full protocol support.
Q: Does the CI871K01 support line redundancy? A: No, the CI871K01 does not support PROFINET line redundancy (MRP). However, it does support Module Redundancy if the AC 800M controller is configured in a redundant pair.
Q: What is the purpose of the TP867 baseplate? A: The TP867 provides the physical and electrical interface to the CEX-Bus and contains the RJ-45 ports for the Ethernet network. It allows for the CI871 module to be removed or replaced without breaking the electrical continuity of the CEX-Bus.
Q: Can I use standard commercial Ethernet switches? A: While commercially possible, it is highly recommended to use Industrial Managed Switches that support VLANs and QoS to ensure PROFINET real-time traffic is prioritized over standard TCP/IP traffic.
Q: What should I check if the “ERR” LED is flashing red? A: A flashing red LED usually indicates a configuration mismatch or a communication failure with one or more slave devices. Check the status in Control Builder M or the hardware log for specific error codes.






