PLC以太网通信是基于传统的Ethernet通信机制，使用以太网和TCP/IP协议作为通信基础， 在任何场合下都提供对TCP/IP通信的绝对支持。为了能够满足自动化中的实时要求，基于PLC以太网层的优化实时通信通道，减少了通信上占用的时间，提高了自动化数据刷新方面的性能。随着远程在业设备上的应用，如何能节省成本,让plc以太网通讯模块连接更多的设备从而达到监控和控制的作用。用一台PLC远程通讯模块连接多台以太网PLC, HiNet智能网关最多连接254台以太网接口的PLC或者触摸屏。PLC模块在以太网通信特点: PLC模块支持的网络协议较为广泛。
ESM10A
标准通信: 主要用于传输结构化数据。PLC模块是一 个符合ISO/IES9506-4的工业以太网通信标准，其提供了开放统-的通信标准，可以连接各个厂商的产品。S5兼容通信 :该通信包括以下协议:ISO传输协议: PLC模块的ISO传输协议支持基于ISO的发送和接收，使得设备在I业以太网上的通信非常容易，该服务支持大数据量的数据传输,最大达8KB。TCP:即TCP/IP中的传输控制协议，提供数据通讯。UDP:,用户数据协议提供了S5兼容通信协议，适用于简单的、交叉网络的数据传输，没有数据确认报文,但可以保证检测数据的正确性。
ESM10A
PLC Ethernet communication is based on the traditional Ethernet communication mechanism, using Ethernet and TCP/IP protocols as the communication foundation, providing absolute support for TCP/IP communication in any situation. In order to meet the real-time requirements in automation, the optimized real-time communication channel based on PLC Ethernet layer reduces the time occupied in communication and improves the performance of automation data refreshing. With the application of remote devices in the industry, how to save costs and enable the PLC Ethernet communication module to connect more devices to achieve monitoring and control functions. Connect multiple Ethernet PLCs using a PLC remote communication module, and the HiNet intelligent gateway can connect up to 254 Ethernet interface PLCs or touch screens. The characteristics of PLC modules in Ethernet communication: PLC modules support a wide range of network protocols.
ESM10A
Standard communication: mainly used for transmitting structured data. The PLC module is an industrial Ethernet communication standard that complies with ISO/IES9506-4, providing an open communication standard that can connect products from various manufacturers. S5 compatible communication: This communication includes the following protocols: ISO transmission protocol: The ISO transmission protocol of the PLC module supports ISO based sending and receiving, making communication between devices on the I industry Ethernet very easy. This service supports large amounts of data transmission, up to 8KB. TCP: The transmission control protocol in TCP/IP, which provides data communication. UDP: The User Data Protocol provides S5 compatible communication protocol, suitable for simple and cross network data transmission. There is no data confirmation message, but it can ensure the correctness of detection data.
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