CAJ | 학술논문

介绍了以FreeModbus协议栈在嵌入式抢占实时操作系统μC／OS－III的STM32平台上，成功实现了Modbus协议的移植。通过详细分析FreeModbus协议栈并编写STM32F103VET6微处理器的底层驱动，成功实现了工业Modbus协议RTU和ASCII两种模式的通信功能。测试结果表明，在实际工业生产控制和仪表开发中，应用Freemodbus协议，完全符合工业数据采集、实时控制和数据处理等厂级重复性和精确度要求，在一定程度上降低了工业仪表开发的周期及成本。
개소료이FreeModbus협의잔재감입식창점실시조작계통μC／OS－III적STM32평태상，성공실현료Modbus협의적이식。통과상세분석FreeModbus협의잔병편사STM32F103VET6미처리기적저층구동，성공실현료공업Modbus협의RTU화ASCII량충모식적통신공능。측시결과표명，재실제공업생산공제화의표개발중，응용Freemodbus협의，완전부합공업수거채집、실시공제화수거처리등엄급중복성화정학도요구，재일정정도상강저료공업의표개발적주기급성본。
This paper introduces FreeModbus stack transplanted to the STM32 platform which has been embedded in the preemptive real-time operating system μC/OS-III,in order that the transplantation of the Modbus protocol is successful y im-plemented.The FreeModbus stack is analyzed in detail and STM32F103VET6 microprocessor underlying driver is writed,so that the two Modbus industrial communication function RTU and ASCII are successful y realized.