本图展示工业控制系统的层级通信架构:上层为PLC与上位机控制核心;中层以VBox、10 耦合器为桥梁，经 EtherCAT、CANopen、Modbus 等总线协议与上层交互;下层以SINYEE协议驱动电磁阀、以离散I0 精准控制现场设备。由此形成“控制一耦合一执行”贯通的数据链路，直观呈现产品在系统中的位置与通信方式。

This diagram shows the hierarchical communication architecture of industrial control systems: the upper layer consists of PLC and upper computer control cores; The middle layer is bridged by VBox and 10 couplers, and interacts with the upper layer through bus protocols such as EtherCAT, CANopen, Modbus, etc; The lower layer drives the solenoid valve with SINYEE protocol and precisely controls the on-site equipment with discrete I0. This forms a data link that connects control, coupling, and execution, visually presenting the position and communication method of the product in the system.