S7: how to copy data of type DATE_AND_TIME

hotchili

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H

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Jun 2005

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Wroclaw

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• Aug 21, 2007

• #1

Hello Everyone

In some date block I have DATE_AND_TIME data. I would like to copy it to another data block. How can I do it? Should I use SFC20? Could anybody write an example?

Thank you in advance, best regards,
Mac

 

RMA

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Sep 2004

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North of Hamburg, Germany

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• Aug 21, 2007

• #2

The DATE_AND_TIME format is 8 Bytes long, if you know the absolute address of the source, then the easyest way is probably just to do two DWORD load and transfers:

Code:

L DB1.DBD10
T DB2.DBD20
L DB1.DBD14
T DB2.DBD24

 

L D[AR2P#0.0]

Lifetime Supporting Member

L

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Nov 2006

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UK

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• Aug 21, 2007

• #3

As RMA has stated, load/transfers are the way to go in this example. However, shown below is the syntax for using SFC20 to do the same job so you will know what to do if you have a bigger area to transfer in the future.

 

Last edited: Aug 21, 2007

hotchili

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• Aug 21, 2007

• #4

Thank you for answers. This is what I need.