NGA and renaming datapoints

[dbindernagel]

Hello All,

I have some questions regarding the renaming of datapoints in an NGA project.

WinCC OA 3.18 P009
Windows Environment
No redundancy (single server)

I have to rename multiple datapoints in a NGA project.
The project is not in production yet and I am aware that renaming datapoints in an NGA project will result in loss of the archived data (this is fine for me).

I was writing a script to do the renaming (with dpRename) but I get the following message in the log:

Code: Select all

WCCILdata    (0), 2022.07.28 14:58:24.742, PARAM,SEVERE,     83, Database not opened in multi user mode or WCCILdatabg not yet started, DP: xxx, MAN: (SYS: 1 Data -num 0 CONN: 1),  DP_MSG_MANIP_DPNAME 

Questions:
1. Should the DataBgManager be running in a NGA project as it is not automatically started in our project?
(We do NOT have set the config entry: dataBgName = "")?

2. As the renaming seems to work just fine, are there problems to expect? Can the message be ignored?

3. If the message can be ignored: Is there a way to stop the message from being written to the log?

4. The manual renaming of datapoint for NGA project has been removed from the PARA with WinCC OA 3.18 P007.
Renaming via "dpRename" is still possible.
Are there other reasons, beside the loss of archive data, that renaming datapoints shall not be done in NGA projects?

Code: Select all

 136718/1-6520233901: The option to rename a data point in the PARA
         panel is visible in projects using NGA, even if renaming of
         data points is not possible.

Best Regards
Dennis

[kilianvp]

Well the PARA does a dpRename as well.

[dbindernagel]

Yes, but the option to rename a datapoint has been removed from the context menu of the para for NGA projects.

[kilianvp]

It looks like they use the DP Name and not the DP ID in NGA projects. Maybe its better to delete and create again.

[leoknipp]

The option to rename datapoints is available again in the PARA module in NGA projects.
When this option is chosen a information dialog is opened that historical data gets lost.

If the DP ID or the DP name is used in NGA depends on the used backend as far as I know.

Best Regards
Leopold Knipp
Senior Support Specialist

[dbindernagel]

Thank you Leopold for the information.