Hello, It is not real project, but i only think about this task: I need fast archiving of variables from PLC (e.g. under 50ms). I would like to use WinCC. I/O can be centralized or decentralized. What is best solution? Requirements are only speed of archiving. I dont care about prize of solution. WinAC RTX with isochrone PROFIBUS?????????????? What is minimal update time of WinCC? Is it possible?