CODESYS Forge - CODESYS Forge / Talk / Visualization 🇬🇧: Rpi: backup persistant on files and select files on webvisu

galexis - 2020-01-14

Hi,
I make backup of persistant on sd card, with date and hour name, with AppStoreRetainsInFile.

Question 1: is it possible to store backup files on external USB flash disk ?

Question 2: I would like to choose with webvisu, which backup file I have to restore, with AppRestoreRetainsFromFile. How to make chooser of file ?

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i-campbell - 2020-01-15

Yes.

Create a button with the input configuration set to open the Visu dialogs.fileopensave as per https://help.codesys.com/webapp/_visu_d ... pen-dialog m
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1- How ? On raspberry, it's : "/mnt/sdb1" ?
I use this code:

PROGRAM MEMORISATION_PERSISTANTS
VAR
fbDelete : FILE . Delete ; (* bloc pour effacer le contenu du
fichier *)
sFileName : STRING := 'data.ret' ;
pApp : POINTER TO APPLICATION ;
Result : RTS_IEC_RESULT ;
xInit : BOOL ;
RESTORE : bool ;
END_VAR
//CmpApp + CAA File + SysTypes Interfaces
IF NOT xInit THEN
   pApp := AppGetCurrent ( pResult := ADR ( Result ) ) ;
    xInit := TRUE ;
    RESTORE := TRUE ;
    PERSIST_RESTAUREES := FALSE ;
 END_IF
IF SAUVEGARDER = TRUE AND NOT RESTORE THEN
   fbDelete ( xExecute := TRUE , sFileName := sFileName ) ;
   IF fbDelete . xDone OR ( fbDelete . xError AND fbDelete . eError = File .Error . NOT_EXIST ) THEN
      fbDelete ( xExecute := FALSE ) ;
      IF pApp <> 0 THEN
         Result := AppStoreRetainsInFile ( pApp , sFileName ) ;
      END_IF
END_IF
IF RESTORE THEN
   Result := AppRestoreRetainsFromFile ( pApp , sFileName ) ;
END_IF

I have to specify ?```

sFileName : STRING := '/mnt/sdb1/data.ret' ;

2- I don't understand how to use dialogs.fileopensave ?
I put it on vizualisation ? And after? Which configuration of it ?
Or I create a button, on mouseclick, I call dialog box fileopensave ? But What I have to set about:

parameter : filelistprovider; type: VISU_FBFILELISTPROVIDER; Value : ????

```

galexis - 2020-01-17

Point 1 :
I do auto mount usb disk on /media/usb with user pi.
On sFilename I do: '/media/usb/data.ret'. It work.

And for point 2: I need help !
I analyse example VisuDialogST, but the second application which can help me, doen't work. Please help me !

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galexis - 2020-01-20

Edwin, could you help me !?!

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Rpi: backup persistant on files and select files on webvisu