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通过实际案例,针对煤矿提升机改造过程中遇到的现实问题,详细介绍了西门子S7-300和三菱FX2N两种PLC进行串行通讯的过程和实现方法,对于串口通讯技术在不同PLC系统之间的通讯应用做了详细的说明。经过实践检验,该方式运行稳定可靠,简化了改造工程的实施过程,减轻了现场安装工作量,具有一定的借鉴意义。
Through the actual case, in view of the practical problems encountered in the process of coal mine hoist transformation, the process and the realization method of serial communication between Siemens S7-300 and Mitsubishi FX2N are introduced in detail. For serial communication technology between different PLC systems Communication application made a detailed explanation. After practice test, this method runs stably and reliably, simplifies the implementation process of the reconstruction project and lightens the workload of on-site installation, which is of certain reference significance.