CAJ | 학술논문

采用FPGA和W5100芯片搭建了嵌入式软PLC网络系统，主控制核心模块采用了PowerPC和FPGA的主从处理器模式，实现了数据的分工处理，克服了以往单CPU工作时系统资源占用率过高的问题。在此开放式硬件平台下，设计了基于时间片轮询的稳定可靠分时数据通信系统；为了适应具有不同网络协议设备的控制需求，系统内部集成了CANopen、Modbus/TCP等协议。最后，对通信系统进行了相关测试。实验结果表明，系统通信正常，且具有很好的实时性和稳定性。
채용FPGA화W5100심편탑건료감입식연PLC망락계통，주공제핵심모괴채용료PowerPC화FPGA적주종처리기모식，실현료수거적분공처리，극복료이왕단CPU공작시계통자원점용솔과고적문제。재차개방식경건평태하，설계료기우시간편륜순적은정가고분시수거통신계통；위료괄응구유불동망락협의설비적공제수구，계통내부집성료CANopen、Modbus/TCP등협의。최후，대통신계통진행료상관측시。실험결과표명，계통통신정상，차구유흔호적실시성화은정성。
An embedded PLC network system based on FPGA and W5100 chip is designed ,which is simple in structure and easy to be extended ;the main control module uses the master-slave processor mode of PowerPC and FPGA ,to realize the division of data processing .On the open hardware platform ,a stable and reliable time-sharing data communication system is designed .In order to meet the requirements of different network protocols of control equipment ,the system integrates CANopen and Modbus/TCP protocols . Finally ,the communication system is tested .The experimental results show that the communications system is of good stability .