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WinCC -- Configuring Tag Logging -- Parameterizing Tag Logging
How can you increase the timeout for starting and terminating Alarm Logging / Tag Logging?
In WinCC, how can you assign the functions of the toolbar buttons of Online Trend Controls to external buttons?
Why, when you select the curve window with the "Read data immediately from archive" option activated, isn't there any data displayed?
What Smart Tools are there for WinCC?
What are the different types of tags available under licensing law?
Why are archive tags not deleted in the Tag Logging editor ?
What does parameter "Supplying tags" mean for a process tag in Tag Logging?
How can you make changes to the project on the configuration computer while the existing process values continue to be acquired and archived on the customer computer?
How can you set the archiving parameters of multiple archive tags at the same time?
Which changes can be made when configuring WinCC Tag Logging?
How can you achieve archiving cycles of less than 500ms in WinCC Tag Logging?
How can you use process-driven archiving in WinCC for a process tag with SFB37 (AR_SEND)?
How do you use SFB37 (AR_SEND) for process-driven archiving of process values in WinCC Tag Logging archives?
WinCC -- Configuring and programming communication -- Communication to S7, use of fast AR_SEND
How can you use process-driven archiving in WinCC for a process tag with SFB37 (AR_SEND)?
How do you use SFB37 (AR_SEND) for process-driven archiving of process values in WinCC Tag Logging archives?
How can you achieve archiving cycles of less than 500ms in WinCC Tag Logging?
How can you tell that WinCC has received data from AR_SEND (SFB37)?
Where is the data archived that is transferred by AR_SEND (SFB37) to WinCC?
How can you ensure that the variables in AR_SEND (SFB37) have the same time stamp?
How can you achieve archiving cycles of less than 500ms in WinCC Tag Logging?
Part number:

Instructions:
The smallest archiving cycle in WinCC Tag Logging is 500ms. There is no way of reducing this archiving cycle time through settings in WinCC Tag Logging. Shorter archiving cycles can be achieved through process-controlled archiving.

There are the following options for this:

  • "AR_SEND" (SFB37)
    In an S7-400 CPU you can implement the "AR_SEND" (SFB37) block for process-controlled archiving in WinCC. With this method the archive data is collected in the controller and then transferred to WinCC as raw data. A conversion DLL on the WinCC side interprets the data sent and enters it in the WinCC archives. You must also interconnect AR_SEND block appropriately in the controller. In WinCC you only have to assign parameters, no programming is required. Information on how to use "AR_SEND" is also available in Entry ID 23629327 and Entry ID 23629424.
  • ODK for user-specific processing of raw data
    Also with this method the data is collected in the controller and transferred to WinCC as raw data. The data is processed and archived using a conversion DLL. The "AR_SEND" (SFB37) block is not available for smaller controllers (S7-300). You have to program this function yourself. The WinCC option "WinCC Open Development Kit" (ODK) provides information on how you can process the raw data received in WinCC using your own conversion DLL.

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 Entry ID:24048478   Date:2006-11-08 
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