描述
按照IEC61131-3的概念,我们应该更确切地称之为通过多配置执行多任务。例如,三菱电机的小Q系列最多可以在一个机架上插4个CPU模块;富士电机的MICREX-SX系列最多可以在一个机架上插6个CPU模块。这些CPU模块可以是专门用于逻辑控制、顺序控制的,也可以是运动控制用的,还可以是做过程控制用的,上述在Windows操作系统的环境下执行PC机任务的模块,也是供用户选择的一种选项。从某种意义上讲,这也是一种混合式的控制系统。
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