The CI855K01 is a key interface component for MasterBus 300 communication networks, enabling high-speed and stable data exchange via standard Ethernet technology. This interface supports redundant network configuration, significantly enhancing system communication reliability and fault tolerance. Its compact design and simple installation allow for direct mounting on DIN rails, making it suitable for various industrial cabinet environments. The product complies with industrial-grade protection standards, offers good interference resistance and adaptability, and ensures stable operation in harsh industrial settings.
2. Product Composition and Function Description
The CI855K01 comprises the following two core components:
CI855 Communication Module
The CI855 is the core communication unit of the system, integrating CEX-Bus logic circuitry, a communication processor, and a DC/DC converter. It receives +24V DC power from the processor unit via the CEX-Bus, eliminating the need for an external power supply. The module supports hot-swapping, allowing replacement during system operation, which greatly improves maintenance convenience and system availability.
TP853 Baseplate
The TP853 provides mechanical mounting and electrical connection support for the CI855. The baseplate integrates two RJ45 Ethernet ports for connecting redundant Ethernet networks. Its design includes an alphabetical code lock mechanism to prevent incorrect installation of incompatible modules, enhancing assembly safety and accuracy.
3. Key Technical Features
Dual Ethernet Redundancy Support: Provides two independent 10BaseT Ethernet interfaces supporting network redundancy for high communication link availability.
Hot-Swap Functionality: Allows module replacement without powering down the system, minimizing downtime.
Integrated Power Management: Powered via the CEX-Bus, eliminating the need for external power and simplifying wiring.
Code Lock Design: Prevents incorrect module installation, improving system reliability.
Industrial-Grade Protection: Protection rating IP20, suitable for typical industrial environments.
Clear Status Indication: Features multi-color LED indicators for real-time display of run, fault, and communication status.
4. Installation and Connection Instructions
Installation of the CI855K01 should follow these steps:
Mechanical Mounting: Secure the TP853 baseplate onto a DIN rail, referring to the AC 800M system installation guide.
Module Installation: Insert the CI855 module into the TP853 baseplate, ensuring the code lock aligns correctly.
Network Connection: Use shielded twisted-pair cables to connect the RJ45 ports on the TP853 to an Ethernet switch.
System Configuration: Download a valid hardware configuration including the CI855 to the controller to complete communication initialization.
If a connection to an AUI interface is required, an additional 10BaseT to AUI converter is needed, which must be provided with an independent power source.
5. Fault Diagnosis and Maintenance
The CI855 features a comprehensive LED status indication system to aid in rapid troubleshooting of common faults:
| Fault Symptom | Possible Cause & Corrective Action |
| Neither RUN nor FAULT LED is ON | The module is starting up or being configured. Allow time for completion. If the condition persists, check the hardware configuration, the CEX-Bus fuse, or attempt a restart/replacement. |
| FAULT LED is ON | Check all cables and connectors for damage, looseness, or poor connections. Repair as necessary. |
| RUN LED is flashing | Check if relevant devices are sending data. If the module is restarting, wait. If flashing persists, restart the application or replace the module. |
| TX/RX LED is ON (not flashing) | Indicates no data transmission/reception. Check communication configuration, cables, and network device status. |
6. Typical Application Scenarios
The CI855K01 is suitable for various industrial automation systems requiring highly reliable communication. Typical applications include:
Process Control Systems: Connecting AC 800M to MasterBus 300 for real-time data exchange between controllers, supervisory systems, and remote I/O.
Energy Management Systems: Enabling time synchronization and data integration among multiple devices in grid monitoring and power generation control.
Rail Transportation Signaling Systems: Supporting communication between train control and trackside equipment, ensuring real-time and reliable information transmission.
Smart Manufacturing & Production Lines: Facilitating coordinated control and status monitoring among production equipment to enhance production line intelligence.
