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Description
Overview
Essential details：CI867AK01 3BSE092689R1 CI867A Modbus TCP Interface
The Modbus TCP interface of the CI867A is an important part of the connection between the AC 800M controller and external Ethernet devices. The interface is based on the Modbus TCP protocol, an application-layer messaging protocol located at Layer 7 of the OSI model. It combines Modbus RTU with standard Ethernet and common networking standard TCP to provide a flexible and reliable solution for inter-device communication in the field of industrial automation.
Designed for System 800xA 6.0.3.3, 6.1.1 and later, the CI867A module offers many features and benefits. It supports redundant Settings, which means that in the event of a failure, the system can seamlessly switch to an alternate configuration, ensuring continuity and stability of communication. In addition, the CI867A supports hot swap, allowing modules to be replaced or upgraded without interrupting system operation.
CI867A
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CI867AK01 3BSE092689R1 CI867A Modbus TCP Interface
As a single-channel Ethernet unit, the Ch1 channel of the CI867A supports full-duplex communication at a speed of 100Mbps, ensuring efficient data transfer. It supports both master and slave functions, and each CI867A can support up to 70 slave machines and 8 hosts, meeting the needs of complex network topologies.
In terms of physical interfaces, Ethernet communication corresponds to the Modbus TCP communication protocol. Master and slave devices transmit data and control communication through Ethernet. This communication method is open and easy to use, so that devices from different manufacturers can communicate with each other, and realize data sharing and collaborative work.
In addition, the CI867A expansion unit contains the CEX-Bus logic, communication unit, and DC/DC converter. These components work together to provide the appropriate voltage from a +24V power supply via the CEX-Bus, ensuring stable operation of the CI867A. At the same time, Ethernet cables must be connected to the main network through an Ethernet switch in order to communicate with external devices.
In summary, the CI867A Modbus TCP interface provides an efficient, stable and flexible solution for inter-device communication in the field of industrial automation. Its support for redundancy, hot swap and high-speed full-duplex communication makes the CI867A an integral part of industrial automation systems.
