Siemens Simatic Step7 Professional Edition 2010 MULTiLANGUAGE 664.20 MB STEP 7 Professional - is a basic software package, which includes in its membership the tools needed for programming and operation control systems, based on programmable controllers SIMATIC S7/C7, as well as Computer control systems SIMATIC WinAC. A distinctive feature of the package STEP 7 is to develop complex automation projects based on the use of multiple programmable controllers, industrial computers, devices and systems, human-machine interface devices, distributed I / O, network structures of industrial relations.