【简答题】
A、S7-200系列PLC内栈存取指令一共与三条,分别是LPS、LRD、LPP B、对于同一个栈存取点LPS、LRD、LPP三个指令可以重复无限制使用 C、对于同一个栈存取点LPS、LPP只能使用一次,且必须配合使用 D、对于同一个栈存取点LRD可以多次使用,但不是无限制的
A、The LPs represent a section of logical storage that can be mapped to multiple PPs. B、The PPs represent the mapping to the physical disk. There will always be either equal or fewer PPs than LPs. C、The LPs represent a section of logical storage that is mapped to a PP that spans over multiple physical disks. D、The LP represents a section of logical storage. This is mirrored on the filesystem level which creates a greater number of PPs.