基于CRC校验的三菱PLC与LabVIEW通讯系统设计

Design of communication system between MITSUBISHI PLC and LabVIEW based on CRC check

在分析各种通讯校验方式的优劣并重点研究三菱PLC的编程口通讯协议及其CRC校验后,基于LabVIEW的CRC校验算法被编程实现。实验结果表明:该编程实现了下位机三菱PLC和上位机LabVIEW之间的CRC校验通讯,通讯及校验方式可靠且错误率低。

After analyzing the advantages and disadvantages of various communication verification methods and focusing on the communication protocol of Mitsubishi PLC programming port and its CRC verification,the CRC verification algorithm based on LabVIEW is programmed.Combined with the existing conditions of the laboratory,the CRC verification communication between Mitsubishi PLC and LabVIEW is realized.The experimental results show that the communication and verification method is reliable and the error rate is low.