ABB CI858

1. Overview

2. Key Specifications

• Supply Voltage: 24 V DC
• Power Consumption: Approximately 5 W
• Communication Interfaces: RS-485, RS-232, two sets of RJ45 Ethernet ports, and optional serial ports
• I/O Points: Up to 256 configurable points
• Operating Temperature Range: -40 °C to +70 °C
• Protection Rating: IP65 (housing) / IP20 (terminals)
• Dimensions/Weight: Approximately 88 mm × 57 mm × 25 mm, weighing 0.3 kg

3. Product Features

• Multi-protocol Support: Compatible with various industrial communication protocols including Profibus, Modbus, CANopen, and Ethernet, facilitating seamless system integration.
• Powerful Control Capabilities: Built-in logic, data processing, and algorithm computing functions enable fast local control.
• High Reliability: Industrial-grade design, IP65 protection, and wide temperature operating range ensure adaptability to harsh on-site environments.
• Modular Design: Plug-and-play structure allows for convenient on-site installation, maintenance, and system expansion.
• User-friendliness: Intuitive programming languages and visual debugging tools are provided to reduce debugging and maintenance costs.

4. Structure and Components

• Main Control Board: Houses the core processor and communication interface circuits.
• I/O Expansion Module: Optional digital/analog input and output cards.
• Power Supply Module: 24 V DC regulated power supply unit.
• Connection Ports: RJ45 Ethernet, RS-485, RS-232, and optional Profibus interface.

5. Typical Application Fields

• Industrial process control systems
• Robotics and automated production lines
• Intelligent buildings and energy management
• Transportation and infrastructure monitoring
• Any automation projects requiring reliable fieldbus or Ethernet communication

6. Installation and Maintenance Guidelines

• Installation: Adopt standard DIN rail or cabinet mounting, and ensure that port protective covers are intact.
• Wiring: Route cables in accordance with power supply, communication, and I/O interface specifications, with attention to the terminal resistors of RS-485 differential pairs.
• Configuration: Use ABB’s dedicated configuration software (e.g., mobiLinkSofting) for parameter setting and network mapping.
• Debugging: Leverage the module’s built-in diagnostic LEDs and visual tools to quickly locate faults.
• Maintenance: The modular structure allows for easy on-site replacement. It is recommended to regularly inspect the protection rating and the tightness of wiring connections.