Corrective maintenance Report, locate, and eliminate faults quickly SIMATIC TeleService für S7 / C7 SIMATIC TeleService makes it possible to service stand-alone controllers or controllers interfaced to MPI or PROFIBUS from a remote central control center. The connection to the automation system can be established via: analog telephone network / ISDN or mobile radio network All SIMATIC S7 programming tools, as well as SIMATIC ProTool/Pro or WinCC, may be used. The Routing function enables online access to local PROFIBUS-DP and Industrial Ethernet nodes. The system to be serviced requires neither a programming device nor programming tools.