I am working on project, where i need to insert data to wincc tag logging archive. For this task i am using ODK function TLGInsertArchivData. Everything works fine, but it takes a lot of time to insert all data that I need (aprox. 15 min every day). My method goes through all data i receive and executes this code (its just a sample) for every record:

In the manual of ODK i found that it is possible to pas multiple TLG_ARCHIVDATARAW structures at once to the function TLGInsertArchivData. You just have to pass pointer to first structure with needed data. I just can not find a good example how to do it. My guess is that by passing multiple TLG_ARCHIVDATARAW structures at once would increase performance of my script. 

Hello,

I am curious if you ever get an answer somewhere else to you question. I exactly need the same functionality.

best regards 

Markus

Hello,

Have you found something about? I'm looking for information about this functionality but I haven´t found anything yet. If you find something, please tell here.

Best regards

Sergio

Hello bg2492,

Thank you for your information. I read that documentation some days ago, but I didn't understand so good.

[snip]

Best regards

Sergio

Hello,

maybe it's a bit to late and you don't need it anymore but you can declare your data as array. Then you fill it with a loop. For inserting you point on the first array element.

TLG_ARCHIVDATARAW SegmentData[20];

for ( n = 0; n < 20; n++)

{

SegmentData[n].stTime = Time[n];

SegmentData[n].doValue = Val[n]; 

SegmentData[n].dwFlags = 0;

}

bRet = TLGInsertArchivData ( ArchiveName, tagname, &SegmentData[0], 20, 0, &Error );

HaggorMan

Hello,

maybe it's a bit to late and you don't need it anymore but you can declare your data as array. Then you fill it with a loop. For inserting you point on the first array element.

 

TLG_ARCHIVDATARAW SegmentData[20];

for ( n = 0; n < 20; n++)

{

SegmentData[n].stTime = Time[n];

SegmentData[n].doValue = Val[n]; 

SegmentData[n].dwFlags = 0;

}

bRet = TLGInsertArchivData ( ArchiveName, tagname, &SegmentData[0], 20, 0, &Error );

 This works great in WinCC C-script.

Does anyone know how to do this in C# with external application?

I am writing an application for transferring a lot of archive data from a previous DCS to WinCC. When inserting 1 tag value it works just fine. When I try to insert multiple tag values it only inserts the first one and returns error code 0x80 for all the rest.

Example error message when inserting 3 values with 3 different time stamps:

"TLG-API: an error occurred, line 883; Pos:1=0x80,2=0x80"

First value is in position 0 and it is written fine (I can see it in the trend), but all other positions return error (in programming reference document 0x80="Record already exists").

When I try to read out records directly from the memory, they appear to be in order.

Find attached the C# code I am using