CI867A Communication Interface | AC 800M | ABB

CI867A MODBUS TCP Communication Interface

The CI867A MODBUS TCP module from ABB enables seamless connection between AC 800M controllers and industrial Ethernet networks. This communication interface uses the open MODBUS TCP industry standard protocol for reliable data exchange. It combines MODBUS RTU with standard Ethernet and TCP networking for universal compatibility.

Protocol and Communication Features

• Implements MODBUS TCP protocol for industrial Ethernet communication
• Operates as an application-layer protocol at level 7 of the OSI model
• Supports both master and slave functionality for flexible system integration
• Provides single Ethernet channel operation at 100 Mbit/s full duplex speed
• Enables connection between AC 800M controllers and external Ethernet devices

Technical Specifications

• Manufacturer: ABB
• Model Number: CI867A (Article 3BSE092689R1)
• Communication Protocol: MODBUS TCP
• Operation Mode: Master/Slave capable
• Channel Configuration: Single Ethernet channel (100 Mbit/s)
• Connection Capacity: Supports up to 70 slave and 8 master units
• Maximum CEX Bus Units: 12 modules per bus system
• Network Connector: RJ-45 female (8-pin) standard Ethernet port

System Requirements and Compatibility

• Requires System 800xA version 6.0.3.3, 6.1.1 or later
• Compatible with HI Controller systems for industrial automation
• Single Ethernet port configuration (compared to dual ports in earlier CI867)
• Contains CEX-Bus logic, communication unit, and DC/DC converter
• Powered by +24V supply through the CEX-Bus connection

Performance and Reliability Features

• Supports module redundancy for high-availability applications
• Enables hot swap capability for maintenance without system shutdown
• Provides reliable operation in industrial environments
• Offers easy integration with existing Ethernet networks via switches
• Ensures robust data exchange through standard MODBUS TCP services

Environmental Specifications

• Operating Temperature: +5 to +55 °C (+41 to +131 °F)
• Storage Temperature: -40 to +70 °C (-40 to +158 °F)
• Relative Humidity: 5 to 95% non-condensing
• Maximum Altitude: 2000 meters according to IEC/EN 61131-2
• Pollution Degree: Degree 2 per IEC/EN 61131-2 standards
• Protection Rating: IP20 according to EN60529, IEC 529
• Corrosion Protection: G3 compliance to ISA 71.04

Certifications and Compliance

• CE marked for European market compliance
• UL 61010-1 and UL 61010-2-201 for electrical safety
• Hazardous location certification: UL 60079-15, cULus Class 1, Zone 2
• AEx nA IIC T4, ExnA IIC T4Gc X for explosive atmospheres
• Marine certificates: DNV-GL (with ABS, BV, LR pending)
• RoHS compliance: DIRECTIVE/2011/65/EU (EN 50581:2012)
• WEEE compliance: DIRECTIVE/2012/19/EU

Physical Dimensions

• Width: 59 mm (2.3 inches)
• Height: 185 mm (7.3 inches)
• Depth: 127.5 mm (5.0 inches)
• Weight: 700 g (1.5 pounds) including base unit

Installation and Configuration

• Connect Ethernet cable through standard Ethernet switch to main network
• Ensure proper +24V power supply via CEX-Bus connection
• Verify System 800xA version compatibility before installation
• Configure MODBUS TCP parameters for master or slave operation
• Implement redundancy setup if required for critical applications

Frequently Asked Questions

• What is the main function of the CI867A? It connects AC 800M controllers to Ethernet networks using MODBUS TCP protocol.
• Can the CI867A operate as both master and slave? Yes, it supports both master and slave functionality simultaneously.
• What is the maximum number of slave units supported? Each CI867A can communicate with up to 70 slave devices.
• Does it support hot swapping? Yes, the module supports hot swap capability for maintenance.
• What system software is required? It requires System 800xA version 6.0.3.3, 6.1.1 or later.