编辑了FB块，然后存盘时会出现提示："The interface of the block was changed.After save/load,this results in an interface conflict with the blocks that reference it. when this block is loaded, the cpu can go into the stop mode.”每次编辑了变量声明表在存盘时都会出现这样的提示，如果确认存盘，在打开他的背景数据块时也会出现提示："there are no parameter and local variable names available because ther is a time stamp conflict between the interface of the block and the des cription of the parameter and local variable names”
我知道这跟时间冲突有关但是不知道如何处理那位高手能给具体解释下为什么，如何才能避免，如何解决?