How to auto update variable?

[huynhngochoi]

Hi,

I have a question, please guide me if can.

How do the Variables in Hardware\Ecotruxure Web Services\ThoiGian\SQL Interface Server\SQLData update automatically to ThoiGian\SQL Interface Server\SQLData?

[Linh_LD]

Host EWS Object again

[huynhngochoi]

Yes, we can do that but it's not automatic

[SteveGregory]

Not an option. Only the value and state of the points is updated automatically. You have to host the interface again and it will add new points. If any points have been removed from the SQL interface, then these will need to be manually deleted from EBO.

[huynhngochoi]

Yeah, I got it.

Thank Sir

[MaximeLaudren · Accepted solution]

Hi @huynhngochoi,

If one of the reply above is solving your issue, can you please tag it, so people know where to look at.

Both Linh and Steve reply are correct:

The EWS interface under hardware will reflect the EWS server status.

But for EBO to use the data, you need to implicitly tell it, that is done by hosting the data.

Remember that a EWS server can be used by multiple EWS client (EBO/Smartconnector/3rd party/ ...)
So the hosting mechanism allow to filter what data will be used and pulled by EBO.

Any object hosted in EBO will be pulled to get updated information.

Note: It's always a good practice to remove unused data from the hosted interface to free resources (CPU/RAM) on both server and client side, and will reducing bandwidth usage as well.

If you still have questions, feel free to ask.

Max

[huynhngochoi]

Yes, I got it.

Thank Sir.