Tcmatik

Then add a question. How can I synchronize the clock of the HMI with the LOGO!. "control" has NTP.

Please, for the future:

If you have another questions, then make a own topic. The must then moderator not split. 

I never made a clock synchronize between a Siemens HMI and a LOGO!.

For this you need in the HMI a connection with area pointers, and the time and the date must have a specific format.

The communication driver LOGO! in TIA has no area pointers. For this you have select the S7-200 driver. But for the area pointer date/time you need the special format of date and time, and this has the LOGO! not.