The advantage function in PLC is stepping sequence control, the efficiency method of establishment the stepping sequence control program is drawing out the function diagram.
步进顺序控制是可编程序控制器的优势功能，编制步进顺序控制程序的有效方法是画出功能表图。
Figure 6.1 shows what the stack diagram looks like for this sequence of function calls.
图6.1表明了这一系列函数调用过程中的栈图。
应用推荐