Description
Product Introduction & Engineering Value
When an AC 800M controller needs to exchange process data with third-party equipment, communication reliability is every bit as important as controller performance. The ABB CI867 provides a dedicated Modbus TCP interface, allowing ABB control systems to communicate with Ethernet-based automation devices without adding protocol converters or custom gateways.
Designed for the CEX-Bus expansion of the AC 800M platform, the CI867 supports both Master and Slave operation. Its support for Hot Swap and module redundancy makes it suitable for process industries where communication interruptions can translate directly into production losses.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | CI867 (CI867K01) |
| Article Number | 3BSE043660R1 |
| Product Type | Modbus TCP Communication Interface |
| Compatible Platform | AC 800M / System 800xA |
| Communication Protocol | Modbus TCP |
| Operating Mode | Master and Slave |
| Ethernet Channels | 2 |
| Channel 1 Speed | 10/100 Mbps Full Duplex |
| Channel 2 Speed | 10 Mbps Half Duplex |
| Maximum Supported Devices | Up to 70 Slave devices and 8 Master connections |
| Connector | RJ-45 (8-pin) |
| CEX-Bus Capacity | Up to 12 communication modules |
| Typical 24 VDC Consumption | 160 mA |
| Module Redundancy | Supported |
| Hot Swap | Supported |
| Protection Rating | IP20 |
| Operating Temperature | Up to 55°C |
| Dimensions (H × W × D) | 186 × 59 × 127.5 mm |
| Weight (Including Baseplate) | Approximately 0.7 kg |
Field Application & The “Trench” Experience
During a refinery upgrade, engineers needed an existing AC 800M controller to exchange production data with several Modbus TCP-enabled power meters, variable frequency drives, and package PLCs supplied by different vendors. Although every Ethernet device responded individually, intermittent communication failures appeared whenever the controller polled multiple devices simultaneously.
After replacing an aging communication interface with a CI867, rebuilding the Modbus polling schedule, and correcting Ethernet switch settings, the communication network stabilized. Operators regained real-time visibility of process data without changing the controller application or replacing field equipment.
Typical applications include:
- Boiler management systems communicating with third-party burner PLCs
- Tank farm monitoring using Ethernet-based flow computers
- Water treatment plants integrating Modbus TCP analyzers
- Power management systems communicating with intelligent protection relays
- Packaging lines exchanging data with OEM PLCs
- CI867 3BSE043660R1
- CI867 3BSE043660R1
Transparency SOP: QA & Testing
Every communication module follows a documented verification process before shipment.
- Verify ABB article number 3BSE043660R1 and hardware revision.
- Inspect the RJ-45 connectors, PCB, and CEX-Bus interface.
- Perform power-up verification using a compatible AC 800M controller.
- Test Modbus TCP communication in both Master and Slave modes where applicable.
- Confirm LED diagnostics and Ethernet link operation.
- Package the module in anti-static materials with shock-resistant protection.
Professionally refurbished units undergo additional network communication testing before final approval.
The Veteran’s Tech Trap Guide
⚠️ Modbus TCP isn’t plug-and-play.
Most communication failures are caused by duplicate IP addresses, subnet mismatches, or incorrect Modbus Unit IDs—not a defective . Verify the network configuration before replacing hardware.
⚠️ Understand the channel differences.
Channel 1 supports 10/100 Mbps full-duplex, while Channel 2 is limited to 10 Mbps half-duplex. Connecting high-bandwidth Ethernet devices to the wrong port can create avoidable communication bottlenecks.
PRO TIP:
Avoid polling dozens of Modbus devices with identical scan intervals. Stagger polling cycles for slower instruments to reduce Ethernet congestion and improve controller response times.
⚠️ Don’t overlook the baseplate.
The CI867K01 package includes both the communication interface and the TP867 baseplate. If you’re replacing only the interface, confirm whether the existing TP867 is still serviceable before ordering.
Dynamic FAQ
Q1. What is the primary function of the ABB ?
The enables Modbus TCP communication between an ABB AC 800M controller and Ethernet-connected automation devices such as PLCs, HMIs, analyzers, drives, and energy meters. It supports both Master and Slave operation.
Q2. How many Ethernet channels does the provide?
The module provides two Ethernet channels. Channel 1 supports 10/100 Mbps full-duplex, while Channel 2 supports 10 Mbps half-duplex communication.
Q3. Does the support redundancy?
Yes. The supports module redundancy and Hot Swap, making it suitable for high-availability AC 800M applications where communication downtime must be minimized.
Q4. Are New Surplus modules genuine ABB products?
Yes. New Surplus modules are unused original ABB inventory stored under controlled environmental conditions. Each unit is inspected for part number verification, connector condition, and physical integrity before shipment.
Q5. What is included with the CI867K01 package?
The standard CI867K01 package includes the Modbus TCP Communication Interface and the TP867 mounting baseplate. Always verify package contents before ordering replacement hardware.
Q6. Is warranty available?
Yes. Both New Surplus and professionally refurbished modules are supplied with warranty coverage. Warranty duration depends on the product condition and is confirmed in the quotation.
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