CI873K01 Communication Ethernet/IP Interface

Description

Overview

Essential details：CI873K01 Communication Ethernet/IP Interface

The CI873K01 is a communication interface module that uses the Ethernet /IP protocol to connect to external Ethernet devices. The module has two RJ45 Ethernet connectors, but only uses CH1 connectors that support 100Mbps. In addition, the CI873K01 expansion unit contains the CEX bus logic, a communication unit, and a DC/DC converter that delivers the required voltage from a +24 V supply via the CEX bus.

The CEX bus logic in the CI873K01 module is a high-speed bus logic used to connect various electronic devices and interfaces. The CEX bus is an Ethernet /IP protocol bus for parallel processing of multiple cpus. It uses twisted pair transmission, transmission rates of up to 100Mbps, can support multiple node connections.

The role of CEX bus logic is to connect and communicate the CPU with other electronic devices to achieve data transmission and signal control. Through the CEX bus logic, the CPU can exchange data and control operations with external devices in real time, so as to realize the monitoring and control of the entire system.

In addition, CEX bus logic also has the advantages of high speed, stability and reliability, which is suitable for various industrial automation systems, communication networks and other application scenarios.

CI873K01

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CI873K01 Communication Ethernet/IP Interface

The main difference between CEX bus logic and other buses is the transmission mode and application scenario.

CEX bus is a high-speed and reliable serial communication bus, which is mainly used in parallel processing of multi-CPU in industrial automation system. It uses twisted pair transmission, transmission rates of up to 100Mbps, can support multiple node connections. CEX bus logic realizes the communication and data exchange between nodes by adding corresponding interface circuits to each node. It has the advantages of high speed, stability and reliability, and is suitable for various industrial automation systems, communication networks and other application scenarios.

Other buses such as SPI, I2C, UART, etc., are also one of the commonly used communication buses, but their application scenarios and transmission modes are different from CEX buses.

SPI bus is a synchronous serial communication bus, mainly used for communication between microcontrollers and peripheral devices. It adopts three-wire transmission mode (SCLK, SDI, SDO), the transmission rate is relatively low, but it is suitable for short-distance communication.

The I2C bus is a bi-directional, two-wire (SCL, SDA), serial, multi-master interface standard that is ideal for short-range, infrequent data communication between devices. It is mainly used for communication between microcontrollers and peripheral devices, such as EEPROM, real-time clock, LCD display, etc.

The UART bus is an asynchronous serial port, which is generally composed of a baud rate generator (the baud rate generated is equal to 16 times the transmission baud rate), a UART receiver, and a UART transmitter, and there are two wires on the hardware, one for sending and one for receiving. UART can generally achieve full-duplex signal transmission, but it requires a fixed baud rate to achieve. It is widely used in serial communication between microcontrollers and other devices.

To sum up, the main difference between CEX bus and other buses lies in the transmission mode and application scenario. CEX bus is suitable for multi-CPU parallel processing in industrial automation system, while other buses are suitable for different application scenarios and transmission requirements.