Data analysis module, slave station access method and ModBus RTU master-slave station system

• Main Authors: ZHU CHUN, ZHAI DENGHUI, LI ZHAOYANG, YI HUA, ZHANG YANLONG, CHEN CHEN, LI MINGDAO, LU YUN, WANG ZHUOLIN, WANG JIUKAI, HE XINGDUO, WANG XING
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention belongs to the field of ModBus RTU protocol bus communication, and particularly relates to a data analysis module, a slave station access method and a ModBus RTU master-slave station system. The non-standard protocol slave station is provided with the non-standard protocol data analysis module, and the non-standard protocol data analysis module is used as a medium for information interaction between the non-standard protocol slave station and the ModBus RTU master station, so that an inquiry instruction which can be analyzed by the non-standard protocol slave station can be generated; the main station and the non-standard protocol slave station which are different in protocol are accessed in a barrier-free mode, so that the main station and the non-standard protocol slave station can share a serial interface with the standard protocol slave station, extra occupation is not needed, and the utilization rate of serial bus resources is effectively improved. Moreover, the communication between the ma