? Product Overview

The CI867A is a MODBUS TCP communication interface module designed for use with ABB’s AC 800M control system.
It enables communication between the controller and external devices or systems over Ethernet using the MODBUS TCP protocol.
The CI867A supports both master and slave operation modes, can be configured as a redundant pair, and allows hot-swapping without interrupting process operation.

? Features and Benefits

Supports redundant configuration for high availability.

Hot-swappable design allows replacement without system shutdown.

Provides one Ethernet channel (Ch1) with full-duplex 100 Mbps capability.

Operates as MODBUS TCP Master or Slave, providing flexibility in system integration.

Supports up to 70 slave units and 8 master units per CI867A.

Compatible with HI (High Integrity) Controllers in safety or high-reliability applications.

? Technical Specifications

Parameter	Specification
Communication Protocol	MODBUS TCP
Operation Mode	Master / Slave
Number of Channels	1 (Ethernet)
Transmission Speed	10 / 100 Mbit/s (Full Duplex, Ch1)
Connector Type	RJ-45, 8-pin (female)
Line Redundancy	No
Module Redundancy	Yes
Hot Swap Capability	Yes
Max Units on CEX Bus	12
Max Slaves per Master	70
Max Masters per Module	8
Used With	HI Controller

? Environmental and Certification Data

Parameter	Specification
Operating Temperature	0 to +55 °C (+32 °F to +131 °F)
Storage Temperature	-40 to +70 °C (-40 °F to +158 °F)
Altitude	Up to 2000 m (IEC/EN 61131-2)
Pollution Degree	Degree 2 (IEC/EN 61131-2)
Corrosion Protection	G3 compliant (ISA 71.04)
Relative Humidity	5 – 95 %, non-condensing
Protection Class	IP20 (EN 60529 / IEC 529)
CE Marking	Yes
Electrical Safety	UL 61010-1, UL 61010-2-201
Hazardous Location	UL 60079-15, cULus Class 1, Zone 2, AEx nA IIC T4, Ex nA IIC T4 Gc X
Marine Certification	DNV-GL (Pending: ABS, BV, LR)
RoHS Compliance	Directive 2011/65/EU (EN 50581:2012)
WEEE Compliance	Directive 2012/19/EU

? Mechanical Data

Parameter	Metric	Imperial
Width	59 mm	2.3 in
Height	185 mm	7.3 in
Depth	127.5 mm	5.0 in
Weight (including base)	700 g	1.5 lb

? Summary

The CI867A MODBUS TCP Interface provides reliable Ethernet-based communication between ABB controllers and external devices. With its support for redundancy, hot-swapping, and flexible master/slave functionality, it is ideal for robust industrial automation and control environments.