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write from DB15.DBW20 to DB15.DBW22 by increasing offset number

Created by: tomodachi at: 9/24/2013 3:56 PM (8 Replies)

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9/24/2013 3:56 PM	Rate (0)
tomodachi Posts: 11 Rating: (0)	Dear All, I want to adapt some network written before in STL to the TIA V11 Network. I used indirect addressing in STL. As I learned that I have to use PEEK and POKE commands to adapt that network. There is a snapshop taken from 1214C CPU was online. My goal is to write from DB15.DBW20 to DB15.DBW22 by increasing offset number. But I couldn't. what may go wrong in these codes ? Thanks in advance. Attachment watchTable.jpg (938 Downloads)
tomodachi Posts: 11 Rating: (0)	Last edited by: O_Moderator at: 9/27/2013 10:28 AM new subject after splitting from /tf/WW/en/Posts/96350#top
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9/24/2013 4:18 PM	Rate (0)
0_Einstein Grandmaster-Expert Joined: 7/7/2010 Last visit: 12/23/2025 Posts: 16323 Rating: (2520)	tomodachi Dear All, I want to adapt some network written before in STL to the TIA V11 Network. I used indirect addressing in STL. As I learned that I have to use PEEK and POKE commands to adapt that network. There is a snapshop taken from 1214C CPU was online. My goal is to write from DB15.DBW20 to DB15.DBW22 by increasing offset number. But I couldn't. what may go wrong in these codes ? Thanks in advance. Peek only gets a byte. PEEK_WORD() gets a word. PEEK_INT().. you get the idea. Check the online help (F1) in portal.
	science guy
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9/24/2013 7:09 PM	Rate (0)
tomodachi Posts: 11 Rating: (0)	Merhaba huggy_d1, I used PEEK_WORD , but the result didn't change. var_Word variable is sitll 0 ! (please see the attachement) Attachment var_Word_0.jpg (710 Downloads)
tomodachi Posts: 11 Rating: (0)
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9/24/2013 7:15 PM	Rate (0)
0_Einstein Grandmaster-Expert Joined: 7/7/2010 Last visit: 12/23/2025 Posts: 16323 Rating: (2520)	tomodachi Merhaba huggy_d1, I used PEEK_WORD , but the result didn't change. var_Word variable is sitll 0 ! (please see the attachement) Try this for testing purposes. Put in the values 15 & 20 rather than the (DINT_VALUE+0). I believe the problem is the peek instruction only returns a byte regardless of the datatype you are coercing the results into. To set a word, I think you need 2 peeks: var_word.b0 := peek(...16#84,..(#i+0),...(#j+1); var_word.b1 := peek(...16#84,..(#i+0),...(#j+0);
	science guy
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9/24/2013 8:15 PM	Rate (0)
tomodachi Posts: 11 Rating: (0)	-- Attachment 2peeks.jpg (678 Downloads)
tomodachi Posts: 11 Rating: (0)
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9/24/2013 8:23 PM	Rate (0)
0_Einstein Grandmaster-Expert Joined: 7/7/2010 Last visit: 12/23/2025 Posts: 16323 Rating: (2520)	tomodachi -- Your code is not the same as I posted. It would be nice if you expanded the \|> block in the scl shown in yellow with ???'s to see what the values are. I tried it and it worked for me by forcing the 15 & 20/21.
	science guy
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9/25/2013 8:11 AM	Rate (0)
tomodachi Posts: 11 Rating: (0)	"???" area couldn't be expanded . I added 2 lines for this purpose, in order to see B0 and B1 values respectively. Now , deleted. the rest is the same . isn't it? Attachment last.jpg (618 Downloads)
tomodachi Posts: 11 Rating: (0)
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9/25/2013 4:08 PM	Rate (1)
0_Einstein Grandmaster-Expert Joined: 7/7/2010 Last visit: 12/23/2025 Posts: 16323 Rating: (2520)	FYI, this was using Portal V11 SP2 Update 5, FW 3.0 on S7-1215 See attached images. Shows the setup call, and the running scl showing processed values (in next post) Attachment C:\TEMP\DB_Copy_By_Number.jpg (854 Downloads)
	science guy
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9/25/2013 4:09 PM	Rate (1)
0_Einstein Grandmaster-Expert Joined: 7/7/2010 Last visit: 12/23/2025 Posts: 16323 Rating: (2520)	Calling setup from main Attachment C:\TEMP\DB_Copy_By_Number_caller.jpg (792 Downloads)
	science guy
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