CI845 Ethernet Fieldbus Communication Interface | ABB

CI845 Ethernet Fieldbus Communication Interface

The CI845 from ABB serves as the communication bridge between AC 800M controllers and Select I/O or S800 I/O systems. This Ethernet Fieldbus Communication Interface enables flexible, granular I/O solutions for the System 800xA platform. It supports both standard and redundant configurations for reliable industrial automation.

System Integration Features

• Connects Select I/O and S800 I/O to AC 800M controllers via Ethernet
• Enables single-channel granular I/O with individual signal conditioning
• Supports both single and redundant communication configurations
• Provides flexible I/O solutions through fieldbus and Ethernet technologies
• Helps decouple project tasks and minimize impact of design changes

Technical Specifications

• Manufacturer: ABB
• Model Number: CI845 (Article 3BSE075853R1)
• Communication Protocol: Industrial Ethernet
• Module Type: Ethernet Fieldbus Communication Interface (FCI)
• Operation Mode: Slave device on Ethernet network
• I/O Capacity: Supports up to 192 Select I/O channels
• S800 Support: Handles 12 single or 12 redundant S800 I/O modules
• Power Dissipation: 5 Watts maximum
• Input Voltage: 19.2 to 30 V DC operating range

Advanced Functionality

• Supports HART version 7 with pass-through capability
• Provides Sequence of Events (SOE) recording for precise timing
• Enables soft marshalling for simplified engineering and wiring
• Includes built-in diagnostics and comprehensive system supervision
• Features mechanical locking slider for safe module removal
• Offers hot swap capability for maintenance without downtime

Power Management and Supervision

• Works with single or redundant 24V power supplies
• Includes built-in power voting for reliable operation
• Provides supervision of both power supply A and B
• Monitors cabinet temperature through built-in measurement
• Offers comprehensive power supply diagnostics
• Ensures reliable operation through multiple supervision layers

Environmental Specifications

• Operating Temperature: -40 °C to +70 °C (-40 °F to 158 °F)
• Storage Temperature: -40 °C to +85 °C (-40 °F to 185 °F)
• Relative Humidity: 5 to 95% non-condensing
• Altitude Range: -1000 to 5000 meters (with restrictions)
• Pollution Degree: Degree 2 according to IEC 60664-1
• Protection Rating: IP20 according to IEC 60529
• Corrosive Atmosphere: G3 compliance for industrial environments

Certifications and Safety

• CE and UKCA marked for market compliance
• Electrical Safety: IEC/EN 61010-1, UL 61010-1, CSA 61010-1
• Hazardous Area: ATEX, IECEx, cULus for Class I Zone 2
• Marine certification: DNV, ABS for maritime applications
• EMC compliance: IEC/EN 61000-6-4, IEC/EN 61000-6-2
• RoHS compliance: EU, UAE, and China environmental standards

Physical Dimensions

• Width: 30 mm compact design
• Height: 135 mm module size
• Depth: 121.7 mm including connections
• Weight: 225 grams including base unit

Installation and Configuration

• Install in TU860 or TU865 Ethernet Field Communications Interface MTUs
• Use two CI845 modules for redundant system configurations
• Connect to Select I/O or S800 I/O systems via Ethernet
• Configure HART parameters and Sequence of Events settings
• Set up power supply supervision and cabinet temperature monitoring
• Utilize mechanical keying for proper module orientation
• Monitor LED indicators for system status and diagnostics

Frequently Asked Questions

• What I/O systems does the CI845 support? It supports both Select I/O and S800 I/O on Ethernet.
• How many I/O channels can it handle? It supports up to 192 Select I/O channels.
• Does it support redundancy? Yes, it supports both single and redundant configurations.
• What HART version is supported? It supports HART version 7 with pass-through.
• Can it be used in hazardous areas? Yes, it carries multiple hazardous area certifications.
• What power supply is required? It operates on 19.2-30V DC, supporting single or redundant supplies.