包括了欧姆龙，西门子s7_200,s7_300等PLC控制伺服共5个程序，欧姆龙有同时控制两台伺服的程序；西门子有控制步进炉的程序，都是工厂用的程序，很有学习意义-Including Omron, Siemens s7_200, s7_300 such as PLC control servo of five programs, Omron has simultaneously control two servo program Siemens furnace controlled stepp