Description
Product overview
The ABB CI858K01 3BSE018135R1 provides a dedicated communication path between an AC 800M controller and compatible ABB drive equipment. Unlike a general-purpose Ethernet or PROFIBUS interface, the CI858 is designed specifically for DriveBus communication. This makes it relevant to coordinated drive applications where the controller exchanges operating data with multiple drives, including industrial rolling-mill and paper-machine systems.
The interface communicates as a DriveBus master at a documented transmission speed of 8 Mbit/s. ABB specifies support for up to 24 drives per CI858, with a maximum of two CI858 units on an AC 800M controller’s CEX-Bus. When multiple drives require a branched physical layout, an NDBU branching unit is used as required by the network design. The module receives power through the CEX-Bus and does not require a separate external power supply.
For replacement procurement, check the full CI858K01 designation and 3BSE018135R1 product number, and confirm that the TP858 baseplate is included if the requirement is for the complete kit. Also review the installed controller configuration, DriveBus topology, optical connections, and application configuration before commissioning. Although ABB documents hot-swap support, the site’s controller configuration and approved maintenance procedure should determine how replacement is performed.
Product introduction
The ABB CI858K01 is intended for installations that need DriveBus communication between an AC 800M controller and compatible ABB drive equipment. Its dedicated protocol and optical connection make correct identification of the interface and network arrangement important during maintenance.
When ordering a replacement, verify the product ID, baseplate, connector condition, and actual test history. Do not substitute a generic Ethernet or PROFIBUS interface simply because it has similar communication-module dimensions.
Key technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | CI858K01 |
| Product ID | 3BSE018135R1 |
| Product type | DriveBus communication interface kit |
| Included interface | CI858 |
| Baseplate | TP858 |
| Compatible controller family | ABB AC 800M |
| Communication protocol | ABB DriveBus |
| Interface role | Master |
| Transmission speed | 8 Mbit/s |
| Connector type | Optical |
| Maximum drives per CI858 | 24 |
| Maximum CI858 units per AC 800M controller | 2 |
| Line redundancy | No |
| Module redundancy | No |
| Hot swap | Supported |
| External power supply | Not required; powered through CEX-Bus |
| Typical 24 V consumption | 200 mA |
| Width | 59 mm |
| Height | 185 mm |
| Depth | 127.5 mm |
| Weight, including base | 700 g |
| Operating temperature | 0 to +55°C |
| Storage temperature | -40 to +70°C |
| Protection class | IP20 |
| Corrosion protection | G3 compliant to ISA 71.04 |

CI858K01
Related products
These components may be relevant when checking an AC 800M communication configuration. They use different interfaces or serve different functions and are not direct replacements for CI858K01.
| Model | Function |
|---|---|
| CI854BK01 | PROFIBUS DP-V1 communication interface |
| CI855 | ABB MasterBus 300 interface |
| CI856 | ABB S100 I/O interface |
| CI857 | ABB INSUM interface |
| CI867A | MODBUS TCP communication interface |
| TP858 | Baseplate associated with the CI858K01 kit |
| NDBU | DriveBus branching unit for supported network topologies |
Frequently asked questions
1. What is the ABB used for?
It provides DriveBus communication between an ABB AC 800M controller and compatible ABB drives or special I/O units.
2. Is the same as 3BSE018135R1?
ABB’s product data identifies 3BSE018135R1 as the article number, and supplier listings associate that number with the kit. Confirm whether the quotation includes both the interface module and TP858 baseplate.
3. Does support PROFIBUS or MODBUS TCP?
Its documented protocol is ABB DriveBus. PROFIBUS DP-V1 and MODBUS TCP are associated with other AC 800M communication interfaces, including CI854B and CI867A, respectively.
4. How many drives can connect to one ?
ABB specifies up to 24 drives per . The actual topology and need for NDBU branching units depend on the installation. A controller can support a maximum of two units on its CEX-Bus.
5. Does require an external power supply?
No separate external supply is required for the interface. ABB specifies that the is powered by the processor unit through the CEX-Bus.
6. Can be hot-swapped?
ABB lists hot-swap support. Follow the applicable AC 800M service instructions and site maintenance procedure before removing or installing the module.
7. What should be checked before purchasing a used or refurbished unit?
Confirm the full product number, TP858 baseplate inclusion, optical connector condition, physical damage, and documented functional-test scope. If possible, verify communication with compatible equipment rather than relying only on a visual inspection or power-on test.
Procurement recommendation
For ABB 3BSE018135R1, verify the complete kit contents and ensure the existing application uses DriveBus. Confirm the optical network arrangement, connected drive count, and controller configuration before commissioning. For surplus stock, request actual-unit photographs and test records that distinguish basic inspection from verified communication operation.
