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Writing data to process image

Created by: CezarSuteu at: 9/18/2013 2:09 PM (2 Replies)

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9/18/2013 2:09 PM	Rate (0)
CezarSuteu Advanced Member Joined: 6/29/2011 Last visit: 12/5/2024 Posts: 42 Rating: (1)	Dear all, I am using TIA Portal V12 SP1 and would like a function to copy some parts of a DB, let's say an array element, to the process image. In Step 7 v5 SCL I used the following code: FUNCTION PB_Transmit : VOID VAR_INPUT DataBlock:WORD; //Number of the Data block PB_Address:INT; DB_Address:INT; Length:INT; END_VAR VAR Source: AnyPoint; Source_Any AT Source: ANY; Destination: AnyPoint; Destin_Any AT Destination: ANY; erg: INT; END_VAR Source.SyntaxID:= 16#10; Source.DataType:= 16#2; Source.DataCount:= Length; Source.DB_Number:= DataBlock; Source.BytePointer:= INT_TO_WORD(DB_Address8) OR dw#16#84000000; Destination.SyntaxID:= 16#10; Destination.DataType:= 16#2; Destination.DataCount:= Length; Destination.DB_Number:= 0; Destination.BytePointer:=INT_TO_WORD(PB_Address8) OR dw#16#82000000; erg:= SFC20(srcblk:= Source_Any, dstblk:= Destin_Any); END_FUNCTION Now I'm trying to use the function WriteToArrayDB in the following way: WriteToArrayDB(db:=, index:=(#Index-1)*24, value:="Source".Out[#Index]); How can I specify the db parameter to be the output image, i.e if Index is 2 then data will be writen starting with byte 24 of the output addresses: PQB24 Thanks and Regards, Cezar

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9/23/2013 10:02 AM	Rate (0)
CezarSuteu Advanced Member Joined: 6/29/2011 Last visit: 12/5/2024 Posts: 42 Rating: (1)	No ideas? Let me rephrase it: I just want to use a BLK_MOV type of function to copy data from a DB to process image and viceversa. Regards, Cezar

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9/23/2013 3:44 PM	Rate (0)
KM_AS Silver Expert Joined: 11/23/2011 Last visit: 1/22/2025 Posts: 202 Rating: (32)	Hello CezarSuteu, please have a look on this FAQ, maybe it will help you: http://support.automation.siemens.com/WW/view/en/42603881 Greetings, KM_AS

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