WinCC_V7.5_SP1.EXE(WinCC_V7_5_SP1.EXE),2.73MB,懂的就下,下了之后再从官网上下载WinCC_V7_5_SP1.001、WinCC_V7_5_SP1.002、WinCC_V7_5_SP1.003、WinCC_V7_5_SP1.004这几个文件,就可以将WINCC7.5升级到WINCC7.5SP1了。