通过对PLC工作原理以及现场总线系统的分析,探讨了如何在PLC这种常规的控制设备上实现多任务并行处理,并提出了一些简单易行的方法。%In this paper,how to realize multi task parallel processing in PLC,a conventional control e-quipment,was discussed by analyzing the working principle of PLC and fieldbus systems.Some simple and easy methods were presented.
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