Archiving Configration

[ASI27]

Hello to Everyone

At my reports I see some varible are unavailable, so I need your help and suggestion

In my project aplication I use two step

first one is to use Siemens Pac3200 Archiving data, and get report ot variables.
second one is to use Modbus slave program to connect Wincc OA by using TCP/IP. I get veriables and archiving data both step.
But I didnt find how to configration of data archiving interval.

I want to make cofigration to get data for archiving clase time period (every 1 day write data in datasheet : -day1 sheet1 day2 sheet2)
data interval period (write the data every munites or 20 seconds: munite1 variable1 munite2 variable2 )

how can I goto see this configration panel to set thats interval times.

Thanks from now,

Best Regards.

[leoknipp]

In WinCC OA a value is archived when it is changed. You cannot define a fixed interval for archiving, e.g. saving the current value every 20 seconds.

The only values which can be saved in fixed interval are those calculated by a statistical function. At the statistical function you define the interval for the calculation.
To get more detailed information for statistical functions please have a look at the WinCC OA documentation: Module PARA --> Data point configs --> _dp_fct

Best Regards
Leopold Knipp
Senior Support Specialist

[ASI27]

Leopold Knipp wrote:

In WinCC OA a value is archived when it is changed. You cannot define a fixed interval for archiving, e.g. saving the current value every 20 seconds.

The only values which can be saved in fixed interval are those calculated by a statistical function. At the statistical function you define the interval for the calculation.
To get more detailed information for statistical functions please have a look at the WinCC OA documentation: Module PARA --> Data point configs --> _dp_fct

Best Regards
Leopold Knipp
Senior Support Specialist

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
I want to say Thanks you ETM Employees again to reply our question so quicly.

I wonder If "In WinCC OA a value is archived when it is changed. You cannot define a fixed interval for archiving, e.g. saving the current value every 20 seconds."

Trend is generate independent archive !

how the Trend work; It has diffrent database, where the trend data save, because I see at my trend screen, every 8 second there is step.

Can anyone expain thats.

[fmulder]

It is actually quite simple:

1) when your trend widget is visble then it is dpConnected on the process value and will display every(!) step the process value makes
2) The Event will forward all value changes to the Datamanager, but the datamanager will only archive every 20 seconds (because you told him so)
3) The values are stored in a value archive \\db\\winccoo_oa\\va_000...
4) When you look at your trend and move back in time -> then you'll see the steps that you expected (at 20 seconds)

Good luck

Share the fun
Frenk Mulder

[leoknipp]

From the screenshot I cannot see that a value is saved in the archive in an interval of 20 seconds. The time difference for the marked values is 6 seconds.
To see the time difference between the archived values you can use the Event Screen (System Management --> Diagnostics). At the Event Screen you can define a time range and a DP element filter. The result are the archived values for the given time period.

The number of values saved in the archive compared to the values processed during runtime may differ if you have defined smoothing settings at the _archive config.
Please note that a time period for time dependent smoothing starts when a value is received. The smoothing settings cannot be used to define a fixed interval of saved values.

Best Regards
Leopold Knipp
Senior Support Specialist

[ASI27]

Hello
Thanks you all due to reply my questions.

I make mistake but I cant fint where is my mistake, as your reply my post I have checked my project. I save tha ? get data from slave in evey 2 second. But slave is generate valu each seconds. as seen at picture.

So I think; there are must be a panel set read data time, archiving interval data time and trend interval data variables.

how can ? go this panel or what is tip or hint to resuch at help.




With best Regards.

[ASI27]

Thanks you to your interest.

[leoknipp]

At the screenshot made with the AEScreen you can see that a value is saved approximately every 2 seconds.
I cannot see the information that the a value is generated every second.
Even if the PLC or the "slave" is generating a value every second you first have to check if every value is received by the driver and send to the Event Manager in WinCC OA.
Please check the settings of the _address config, maybe the poll group is defined with an interval of 2 seconds and therefore you get a value in a 2 second interval.

Best Regards
Leopold Knipp
Senior Support Specialist

[ASI27]

Hi

"Thanks you to your interest." I have been writed that to I m glad to to be here. Because, I was finded my mistake

Thanks.