[FEATURE] progress bar and cancel trend load

[mariorl]

Describe the feature
If you sample fast, daq files become too huge, and need minutes for loading on front end, and eventually will not load at all.

Describe the solution you'd like

• Progress bar with cancel: if the query is too big you'll see it on the progress bar (will grow very slow) and cancel trend rendering if needed.
• A way for select a very concise querý, for example 1 single hour, will imply a quite smaller dataset. May be there's already a way for do this from scripting, but its not clear how to do it.

Additional context
I'm using a modbus multimeter to measure and save grid supply quality, every 200ms, since I need to catch millisecond grid drops, and it works, but later Daq the files become too big.

kind regars

[MatthewReed303]

@mariorl I agree and a progress bar of loading data would help. I have noticed it will also crash the browser session sometimes also. Another possibility is use the new triggers and set a range and log only the ranges you need ignoring the rest. You can also do this on the PLC with a simple FIFO buffer so you don't miss any important and push to Fuxa every 10sec on change etc

[mariorl]

The instrument I sampling is not a PLC, so can't do FIFO or so to reduce the traffic. What you mean with "new triggers"?

[unocelli]

Hi, I just added the feature chunk DAQ history result, can you give me feedback?

[mariorl]

Hi, I cant see where "chunk DAQ history result" is implented, if you mean $getHistoricalTags, I just used this function in order to create filtered daq fiels for a trend preview, and works fine. Also I noticed the /templates pane on the scripts interface is now empty.

kind regards, Mario.

[unocelli]

templates on the scripts are only for client functions, this is the reason why for server script is empty