General info

Article number

3BSE092689R1

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.

Communication protocol

MODBUS TCP

Master or slave

Master / Slave

Number of channels

1 channel

Transmission speed

10/100 Mbit/s (Ch1)

Line redundancy

No

Module redundancy

Yes

Hot Swap

Yes

Used together with HI Controller

Yes