Product Core Brief
- Model: CI861K01
- Order Code: 3BSE058590R1
- Brand: ABB
- Series: AC 800M — CEX-Bus Communication Interface
- Core Function: CEX-bus communication interface module for ABB AC 800M controllers, providing an additional communication channel within System 800xA environments.
- Product Type: Communication Interface Module
- Key Specs: CEX-bus mounted | AC 800M compatible | System 800xA integration | standard AC 800M module form factor
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction
The ABB CI861K01 (3BSE058590R1) is a CEX-bus communication interface module for the ABB AC 800M controller family, used within System 800xA distributed control systems. It mounts on the controller’s CEX-bus and provides an additional communication interface for connecting external networks or devices without requiring a separate external gateway.
Why this matters: the CI861K01 is a legacy communication module that is no longer prominently listed in current ABB product catalogs, making it difficult to source for plants running installed AC 800M systems. A failed communication interface can disrupt data exchange between the controller and external devices, so verified replacement stock is essential. The module is supplied as a K01 kit, which typically includes the communication module and the appropriate terminal base for direct installation.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | |
| Order Code | 3BSE058590R1 |
| Product Type | Communication Interface Module |
| Compatible Platform | ABB AC 800M / System 800xA |
| Bus Interface | CEX-bus |
| Mounting | TB8xx series terminal base on DIN rail |
| Power Supply | Supplied via CEX-bus |
| Operating Temperature | Typically 0 to +55 °C (cabinet dependent) |
| Form Factor | Standard AC 800M module |
Note: Publicly available documentation does not fully confirm the exact communication protocol set, port configuration, or redundancy capability for CI861K01. Some third-party sources list Modbu
s, Profibus, or Ethernet support, but these claims are not verified against official ABB documentation. Always confirm against the installed module label and the AC 800M hardware manual before ordering.
Key Selling Points & Differentiators
- Exact ABB CI861K01 replacement. Matches order code 3BSE058590R1 — a legacy CEX-bus communication module for AC 800M controllers.
- CEX-bus integration. Mounts directly on the AC 800M controller’s communication expansion bus, avoiding external gateway hardware.
- K01 kit format. Supplied as a kit with the appropriate terminal base for straightforward installation.
- Hard-to-source legacy product. Difficult to obtain through standard ABB channels. We stock verified, unused units — not field-pulled modules with unknown runtime history.
- Not recommended for non-ABB platforms, AC 800F systems, or applications requiring officially documented protocol support without prior engineering verification.
- 12-month warranty with pre-shipment label verification and visual inspection.
Quality Transparency SOP
- Label & order code audit. Verify “CI861K01” and “3BSE058590R1” on the module faceplate. Record any firmware or revision markings.
- Visual PCB inspection. Check for burnt components, swollen capacitors, corrosion, or damaged traces around connectors and ICs.
- Connector & port check. Verify CEX-bus connector, communication ports, and terminal block connectors are straight, clean, and undamaged.
- Terminal base check. Confirm the included TB8xx terminal base is present and undamaged.
- ESD packaging. Sealed in anti-static bag, foam-padded box, shipped with a signed inspection report.
Technical Risk Avoidance
- ❗ Confirm order code before ordering. CI861K01 (3BSE058590R1) is a specific CEX-bus communication module. Do not substitute with CI855, CI867, CI868, CI871, or other CI8xx variants without engineering approval.
- ❗ Verify communication protocol support. Public sources do not conclusively confirm which protocols this module supports. Check the installed module’s documentation or configuration before ordering.
- ❗ Match the terminal base. Ensure the kit includes the correct TB8xx terminal base compatible with your cabinet layout.
- ❗ Check CEX-bus slot availability. The module requires an available CEX-bus slot on the AC 800M controller. Verify slot compatibility in your hardware configuration.
- ❗ Document existing configuration. Record all communication parameters, IP addresses, baud rates, and protocol settings before removing the failed module.
- ❗ Validate after replacement. Verify communication link status, protocol handshake, and data exchange after installation before returning to full service.
Buyer’s FAQ
Q: What is ABB CI861K01? A: It is a CEX-bus communication interface module for ABB AC 800M controllers, order code 3BSE058590R1, used in System 800xA environments.
Q: What systems is it compatible with? A: It is compatible with ABB AC 800M controllers and System 800xA. It mounts on the CEX-bus via a TB8xx terminal base.
Q: Is the same as CI867K01 or CI868K01? A: No. CI867K01 is for Modbus TCP over Ethernet, and CI868K01 is for IEC 61850. CI861K01 is a distinct variant. Do not substitute without confirming protocol compatibility.
Q: What communication protocols does it support? A: Official ABB documentation for CI861K01 is limited. Some third-party sources mention Modbus, Profibus, or Ethernet, but this is not confirmed. Verify against your installed module’s configuration.
Q: Is this new or refurbished? A: New original surplus — factory sealed, never installed. We do not sell field-pulled or refurbished units as “new.”
Q: What should I send before ordering? A: Please provide a clear photo of the existing module label, order code, terminal base model, and the communication protocol currently configured.
Q: What’s the lead time and warranty? A: In-stock units ship within 1–2 business days. 12-month warranty from ship date, covering manufacturing defects and DOA failures.
If you can share a photo of the installed CI861K01 label and the communication protocol in use, I can help confirm compatibility.
