Description
Product Overview
The ABB CI867K01 3BSE043660R1 provides Modbus TCP connectivity for ABB AC 800M controllers. In a distributed control system, it allows controller applications to exchange process data with compatible third-party equipment, such as meters, drives, PLCs, and other Modbus TCP devices. The interface is designed for industrial control cabinets and integrates into the AC 800M communication architecture through the CEX bus. The supplied kit includes the CI867 module and TP867 baseplate.
The interface supports Modbus TCP master and slave roles, allowing it to initiate communication with external devices or respond to requests from another Modbus TCP client, depending on the configured application. Its two Ethernet channels have different speed capabilities: Channel 1 supports 10/100 Mbps, while Channel 2 operates at 10 Mbps according to ABB’s controller hardware documentation. This distinction matters when planning network connections, commissioning replacement hardware, or troubleshooting communication failures. Do not assume both ports have identical bandwidth or that the module automatically provides Ethernet line redundancy.
For maintenance and procurement, the main checks are the complete article number, baseplate inclusion, controller compatibility, and software configuration. A replacement module must match the intended AC 800M hardware and engineering environment, and the Modbus device definitions, addressing, and communication parameters may need to be restored or validated. Before removing an operating module, confirm the approved maintenance procedure and whether the installation uses module redundancy. The ABB CI867K01 is documented as hot-swappable in supported configurations, but that does not eliminate the need to follow the plant’s control-system procedures.
Product Introduction
When a controller must exchange process data with third-party equipment, communication compatibility can be just as important as the controller hardware itself. The ABB CI867K01 3BSE043660R1 provides two-channel Modbus TCP connectivity for compatible AC 800M systems.
Before purchasing a replacement, confirm that the TP867 baseplate is included, verify the channel-speed requirements, and check the installed controller and engineering-software versions. A matching part number is the starting point; network configuration and application compatibility still need validation.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | CI867K01 |
| Article number | 3BSE043660R1 |
| Product type | Modbus TCP communication interface kit |
| Compatible controller family | ABB AC 800M |
| Automation platform | System 800xA and compatible AC 800M environments |
| Communication protocol | Modbus TCP |
| Operating roles | Master / slave |
| Number of channels | 2 |
| Channel 1 speed | 10/100 Mbps, 10/100Base-TX |
| Channel 2 speed | 10 Mbps |
| Physical connector | RJ45 Ethernet |
| Current consumption | 160 mA typical; 250 mA maximum from 24 V DC CEX bus |
| Typical power dissipation | 3.8 W |
| Power source | 24 V DC via CEX bus |
| Protection rating | IP20 |
| Dimensions, including baseplate | Approximately 59 × 185 × 127.5 mm |
| Package weight | Approximately 700 g |
| Hot-swap capability | Supported in documented configurations |
| Installation | AC 800M controller rack using TP867 baseplate |
| Condition | Supplier confirmation required |
Technical values are based on ABB’s controller hardware guide and product catalog. Confirm the relevant hardware and software compatibility requirements for the installed system.

CI867K013BSE043660R1
Related Products
- ABB CI867A — 3BSE092689R1: A related Modbus TCP interface with a different hardware designation and channel configuration. ABB lists it as a one-channel interface; do not treat it as a direct replacement without checking the system design.
- ABB TP867: The baseplate supplied with the CI867K01 kit. Confirm whether the replacement quote includes this component if only the communication module is shown in the listing.
- ABB CI853K01 — 3BSE018103R1: A dual RS-232-C communication interface supporting serial protocols such as Modbus RTU and COMLI. It is intended for serial rather than Modbus TCP communication.
- ABB CI854BK01 — 3BSE069449R1: A PROFIBUS-DP/V1 communication interface for compatible AC 800M installations. It serves a different fieldbus requirement.
- ABB CI871AK01 — 3BSE092693R1: A PROFINET IO communication interface for compatible AC 800M systems. It should be selected when the network architecture requires PROFINET rather than Modbus TCP.
- ABB CI868A — 3BSE092691R1: An IEC 61850 communication interface for applicable AC 800M configurations. It supports a different protocol and application scope.
Frequently Asked Questions
Q1: What is the ABB CI867K01 used for?
It provides Modbus TCP communication between a compatible ABB AC 800M controller and external devices. It can be configured for master or slave operation, depending on the application.
Q2: Is the same as 3BSE043660R1?
Yes. is the kit model, and 3BSE043660R1 is its ABB article number. The kit includes the CI867 communication module and TP867 baseplate.
Q3: Do both Ethernet channels support 100 Mbps?
No. ABB’s controller hardware guide specifies 10/100 Mbps for Channel 1 and 10 Mbps for Channel 2. Account for this difference when planning network connections.
Q4: Can the be hot-swapped?
ABB documentation identifies hot-swap capability for the CI867 interface. Actual replacement must still follow the approved controller configuration and site maintenance procedure, especially where communication loss could affect the process.
Q5: Can replace CI867A?
Not automatically. is a two-channel interface kit, while CI867A is listed as a one-channel variant. Verify controller support, channel requirements, baseplate, and engineering configuration before considering a substitution.
Q6: What should be checked before commissioning a replacement?
Verify the article number, baseplate, CEX-bus installation, controller and engineering-software compatibility, Modbus device addressing, and communication parameters. Confirm that the expected devices respond correctly before returning the system to normal operation.
Q7: What should I request when purchasing a spare?
Ask for photographs of the actual CI867 module and TP867 baseplate, confirmation of the complete order number, condition, and functional-test status. For used or refurbished stock, request a written warranty and return terms, and confirm whether the module has been tested in a compatible AC 800M environment.
