ABB CI867A COMMUNICATIONS - AC 800M COMMUNICATION INTERFACES

MODBUS TCP is an open industry standard widely spread due to its ease of use. 

It is a request response protocol and offers services specified by function codes. 

MODBUS TCP combines the MODBUS RTU with standard Ethernet and universal networking standard TCP. 

It is an application-layer messaging protocol, positioned at level 7 of the OSI model. 

The CI867A/TP867 is used for connection between an AC 800M controller and external Ethernet devices using Modbus TCP protocol.

The CI867 expansion unit contains the CEX-Bus logic, a communication unit and a DC/DC converter

that supplies appropriate voltages from the +24 V supply via the CEX-Bus.

The Ethernet cable must be connected to the main network through an Ethernet switch.

The CI867A module will only work with System 800xA 6.0.3.3, 6.1.1. and subsequent versions.

Features and benefits

The CI867A can be set redundant and supports hot swap.

CI867A is a single channel Ethernet unit; 

Ch1 supports full duplex with 100 Mbps speed.

Both master and slave functionality are supported.

A maximum of 70 slave and 8 master units per CI867A can be used.

Key features

Wide range of protection and control functionality for incoming and outgoing feeders

Extensive earth-fault protection portfolio with unique multifrequency admittance-based protection for higher sensitivity and selectivity

Several optional functionality packages – advanced and fast fault location of short circuits and earth faults, 

interconnection protection for distributed power generation, capacitor bank, basic motor and arc protection

Supports native IEC 61850 Editions 1 and 2, including redundancy HSR and PRP, 

GOOSE messaging and IEC 61850-9-2 LE for less wiring and supervised communication

Supports Modbus, DNP3 and IEC 60870-5-103 communication protocols and for different time synchronization methods, 

including high-accuracy time synchronization via IEEE 1588 V2 Precision Time Protocol