Time Sync - Client/Server

[slamkwon]

When the client (UI) and the HMI server are not time synchronized, VISION displays an error and turns off.

1. How much of a time difference will result in an error?
2. How long (or what is the trigger) before VISION realizes in the time difference and turns off?

Thanks

[kilianvp]

per default 30 seconds. You can change the value, but it can cause problems. It is better to syncronize time.

[gschijndel]

per default 30 seconds. You can change the value, but it can cause problems. It is better to synchronize time.

Since 3.11(+SP1) this is no longer the case, also with a bigger time difference the UI will connect (but a warning is written in the log).
Details can be found in the documentation: WinCC OA UI -> Remote user interface -> Synchronization Client-Server

[kilianvp]

per default 30 seconds. You can change the value, but it can cause problems. It is better to synchronize time.

Since 3.11(+SP1) this is no longer the case, also with a bigger time difference the UI will connect (but a warning is written in the log).
Details can be found in the documentation: WinCC OA UI -> Remote user interface -> Synchronaization Client-Server

but a dpSet would be invalid???

i always had to adjust the config entry valueChangeTimeDiff

[gschijndel]

but a dpSet would be invalid???

No, the UI time is ignored and the event manager will use its own time for the value.