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How to Undestand Data Block assignment in FC??

8/22/2008 3:44 AM	Rate (0)
kanan Posts: 133 Rating: (2)	Hi! Can anybody explain how, where can i know what data block is assigned in FC if for example it is written as below: ////////////////////////////////////////////////////////// Network#1 OPN #DataBlock // Select the DB L #DeadBandNumber // Get Dead band number + -1 // Make index number L 34 // Get data structure size *D // Calculate offset to selected data structure SLD 3 // Shift over to form pointer LAR1 // Load address register 1 //////////////////////////////////////////////////////// I know that if its written like this: L DBD [AR1,P#26.0], this meens that this is DB??DBD26-yes? but what DB no. should i look at?? please help regards
kanan Posts: 133 Rating: (2)
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8/22/2008 7:54 AM	Rate (0)
Aret Posts: 2348 Rating: (265)	You read pointer + 26.0 That means you read DB[#DataBlock].Array[DeadBandNumber-1].DBD26. I guessyouhaveDBwitharrayofstructinit.26isoffsetofdeadbandfromstructbeginning.
Aret Posts: 2348 Rating: (265)
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8/22/2008 9:14 AM	Rate (1)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 7/31/2025 Posts: 9027 Rating: (1199)	Dear kanan, The Datablock that will open, is mentioned in Input variable. When you call the mentioned FC, you will have to give some parameters. One of them will be the number of Datablock. Please look at header of FC. Best regards, Wizard

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8/22/2008 10:00 AM	Rate (0)
kanan Posts: 133 Rating: (2)	Hi Wizard! thanks, your reply helped to fined datablock, it was UDT type. but the thing is i found this in FC properties comments. and i did not realy fined any assignment???....Comment here below:" Each joy stick is defined in an area of a data block. This area is buildt up by one UDT data structure. UDT 10001 contain values for signal range and deadband." thats all what io found
kanan Posts: 133 Rating: (2)
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8/22/2008 10:11 AM	Rate (1)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 7/31/2025 Posts: 9027 Rating: (1199)	Hi kanan, Please find the place where FC is called up. Perhaps there are more places . Use cross reference(Options -> reference data -> display) then select Programm structure. It will be just 1 DB with different Deadbandnumbers. Best regards, Wizard

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8/22/2008 10:26 AM	Rate (0)
kanan Posts: 133 Rating: (2)	Hi Wizard! I found it! Thank you very much!
kanan Posts: 133 Rating: (2)
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8/22/2008 11:39 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 7/31/2025 Posts: 9027 Rating: (1199)	You are welcome I'm glad you found it. Best regards, Wizard

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