西门子S7200smart编程软件STEP-7-MicroWIN-SMART-V2.4,仅供学习参考, http://w2.siemens.com.cn/download/smart/STEP 7 MicroWIN SMART V2.2.zip http://w2.siemens.com.cn/download/smart/STEP7-MicroWIN-SMART-V2.4.zip