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Logging value into datablock

Created by: pb01 at: 4/16/2009 3:22 PM (5 Replies)

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4/16/2009 3:22 PM	Rate (0)
pb01 Posts: 4 Rating: (0)	I want to log the value of an IW into an datablock every second. I know that i must use OB32. How can write the value to the next dataword of the datablock without using an shiftregister? first time that OB32 is called I want to write the value of IW4 into DB100.dbw0 next time that OB32 is called I want to write the value of IW4 into DB100.dbw2 next time that OB32 is called I want to write the value of IW4 into DB100.dbw4 etc.
pb01 Posts: 4 Rating: (0)	Last edited by: pb01 at: 4/16/2009 3:41 PM
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4/16/2009 5:05 PM	Rate (3)
Denilson Pegaia Platinum Member Joined: 9/23/2005 Last visit: 8/27/2024 Posts: 4347 Rating: (1442)	Hi, I wrote a article, that was not yet converted to a FAQ. Here is the preliminary version. The Stacker FB does these work to you. Attachment STEP 7 Staker.zip (1182 Downloads)
	Last edited by: Pegaia at: 8/3/2010 3:52 PM minor corrections on the documentation Last edited by: Pegaia at: 2/10/2010 11:05 AM Program corrected Last edited by: Pegaia at: 2/9/2010 3:37 PM Bug detected: Pay attention on Extract_At_Position function: Everything works as long as I extract double words from position 1, but if i extract from position 2, the number of entries in buffer decreases with 1, but the data in the buffer doesn''''''''t shift. I changed line 444 in the scl source, from this "x1 := nr_DBD_to_move * 4 - 4;" to this "x1 := nr_DBD_to_move * 4;" As soon as possible, I will correct it. Denilson Pegaia Siemens Industry Sector Technical Support
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This contribution was helpful to 6 thankful Users elektronikmuh PHS Nick Jansen hellf djWagamama bin mulyadin

2/7/2013 3:45 PM	Rate (0)
cosmapack Member Joined: 8/29/2012 Last visit: 8/7/2024 Posts: 1 Rating: (0)	Hi, very nice block changing your x1:=nr_DBD_to_move*4; solves the extract from position 2, but does not solve extract from position 3... Thanks Alberto

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4/17/2019 2:19 PM	Rate (0)
phgo Advanced Member Joined: 5/22/2009 Last visit: 5/3/2022 Posts: 40 Rating: (0)	There is a version for TIA portal V14 ? Or just project conversion works ? Regards

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12/26/2019 4:54 PM	Rate (0)
Denilson Pegaia Platinum Member Joined: 9/23/2005 Last visit: 8/27/2024 Posts: 4347 Rating: (1442)	Hi, here there is a V13 SP2 version of it. I think you can open it on V14 too. Attachment Project4.zip (239 Downloads)
	Denilson Pegaia Siemens Industry Sector Technical Support
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This contribution was helpful to 1 thankful Users bin mulyadin

9/2/2021 3:01 AM	Rate (0)
bin mulyadin Experienced Member Joined: 3/2/2012 Last visit: 5/21/2024 Posts: 45 Rating: (0)	Thank you Mr. Denilson, I just test the block. I use only 10 array of DINT in DB2 so I put L#2 for BUFFER_DB and L#1 for NEW_REGISTER_DB. This mean the data that I want to feed to and extract from Data Bank is located in DB1.DBW0 right? When I give command INSERT AT BEGIN and INSERT AT END it works fine. But when give command extract, it extract the data but the data seems tobe not shifted. For example here is the data in data bank looks. Before : DB2.DBD0 = 13 DB2.DBD4 = 12 DB2.DBD8 = 11 DB2.DBD12 = 10 DB2.DBD16 = 14 DB2.DBD20 = 15 Then I give command extract at begin, the data bank looks like DB2.DBD0 = 12 DB2.DBD4 = 11 DB2.DBD8 = 10 DB2.DBD12 = 14 DB2.DBD16 = 15 DB2.DBD20 = 15 Then I give command extract at end, the data bank looks like DB2.DBD0 = 12 DB2.DBD4 = 11 DB2.DBD8 = 10 DB2.DBD12 = 14 DB2.DBD16 = 15 DB2.DBD20 = 15 Please advice where did I made a mistake? regards dedi bin mulyadin
	Last edited by: bin mulyadin at: 09/02/2021 03:01:46
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