【摘要】 内嵌型软PLC与通用PLC在功能和逻辑结构上是相通的,但内嵌型软PLC寄生"在宿主系统中,共享系统硬件资源,机床CNC的硬件平台就是内嵌型软PLC的一个宿主.在PLC中,体现控制要求的梯形图逻辑是由类似于CPU功能的逻辑虚拟机(VM)执行实现的.因此,逻辑虚拟机在设计中可以借用CPU的一些概念.更多还原

【Abstract】 Embed software PLC is similar to generalpurpose PLC in function and logic structure,but it is parasitism in the host system and share its hardware resource,machinetool CNC is a kind of host of software PLC.The ladder pilot expressing the control logic is implemented by the logic virtual machine (VM) similar to CPU.So we can design the VM by means of the conception borrowed from CPU.更多还原