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how can I move block byte or word, Dword... in S7-1200 program?

Created by: bathoi at: 11/8/2011 1:26 PM (14 Replies)

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11/8/2011 1:26 PM	Rate (0)
bathoi Posts: 28 Rating: (0)	Help me please! In S7-200 I easy to move Block Byte (I used BLKBMOV_B) Can you tell to me how canI move block byte or word, Dword... in S7-1200 program. Thanks so much!
bathoi Posts: 28 Rating: (0)	Last edited by: O_Moderator at: 11/8/2011 1:36 PM new subject after splitting from /tf/WW/en/Posts/57715#top
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11/8/2011 2:05 PM	Rate (0)
Marcjan Platinum Member Joined: 4/22/2010 Last visit: 4/10/2021 Posts: 5652 Rating: (682)	Hello, The 1200 has move functions too, Move and Move_BLK, see attached part of the help file. Regards, Marcjan Attachment move.pdf (4091 Downloads)
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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This contribution was helpful to 2 thankful Users JeremiahUSA abdulhadi1987

11/8/2011 7:10 PM	Rate (0)
William_B Posts: 5225 Rating: (1109)	Marcjan The 1200 has move functions too, Move and Move_BLK, see attached part of the help file. Dear "bathoi", What made things confusing for me in the beginning was the fact that the logic blocks does not have a data size (WORD, INT, REAL, ..) when you first place it. The data size is set when you put in your first variable. With MATH functions you can at least select the data size when pressing on the ??? button that is inside the block. With MOVE instruction the data size is not indicated. BUT it is important that the IN and OUT data size are the same. TIP: When placing a MOVE instruction using shortcut keys: 1] SHIFT + F5 2] Type: [space] [m] [o] [v] [e] [enter] When placing block move (MOVE_BLK) instruction: 1] SHIFT + F5 2] Type: [m] [o] [v] [enter] okay? okay.
William_B Posts: 5225 Rating: (1109)
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11/9/2011 8:23 AM	Rate (0)
bathoi Posts: 28 Rating: (0)	Thank for your help but i really want another mean. Example: In s7-200 (I want to move byte vb20, vb21,vb22... to vb30) please see my picture ..and how about in s7-1200? Thanks! Attachment MoveBlock.JPG (2301 Downloads)
bathoi Posts: 28 Rating: (0)	Last edited by: bathoi at: 11/9/2011 8:29 AM Last edited by: bathoi at: 11/9/2011 8:24 AM
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11/9/2011 8:55 AM	Rate (0)
William_B Posts: 5225 Rating: (1109)	Hi, Please accept my applogy. The MOVE_BLK does not work as I have understood from the documentation. The block move you are looking for does not seem to work correctly. The data that MOVE_BLK can handle the move only when the data is sorted in an array. So any block move from a MWxx is not possible. (VWxx does not exist in the S7-1200.) Only array variables created in an FB or DB can be copied with the block move instruction. [ouch] That does create issues for re-using S7-200 code inside S7-1200. It would be nice if an expert could tell us if there is an indirect addressing method to move a block of MWxx to another block of MWxx. All is not lost however. I suggest you utilize the array to store the values that came from [VW20..VW29 and [VW30..VW39] as it does enhance the structure of your code. Sorry I am not more help than that.
William_B Posts: 5225 Rating: (1109)	Last edited by: William B. at: 11/9/2011 8:59 AM
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11/9/2011 9:28 AM	Rate (0)
Ganes10 Platinum Member Joined: 8/31/2010 Last visit: 3/23/2021 Posts: 1496 Rating: (214)	Refer - MOVE Instruction (STEP7 v11) Refer - MOVE_BLK Instruction (STEP7 v11) for having more clarity / possibilities on having different data types in IN & OUT Pl wait before closing the page till the topic gets loaded (it takes time)
	Last edited by: Ganes10 at: 11/9/2011 9:29 AM Like it? Rate it!
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11/9/2011 9:52 AM	Rate (0)
William_B Posts: 5225 Rating: (1109)	Thanks Ganes10 for the links. This is the same as the documentation inside Step 7 V11.0 - right? There is an alternate solution that came up by following the links (thanks to Ganes10). If the block data is of mixed datatypes, declare those in a DB under a structure (STRUCT). ---- Let us say we use DB100 named SETUP S1 is a STRUCT with the variables B1 as BOOL and V1 as INT. Now S2 is a STRUCT with the same variables. Then use the MOVE command.. MOVE S1, S2 [This is also allowed for whole ARRAY's] Individual variables can be used.. SETUP.S1.B1 or SETUP.S2.V1 and so on. ----
William_B Posts: 5225 Rating: (1109)
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11/9/2011 11:57 AM	Rate (0)
bathoi Posts: 28 Rating: (0)	Thanks for your help
bathoi Posts: 28 Rating: (0)
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11/9/2011 12:03 PM	Rate (0)
William_B Posts: 5225 Rating: (1109)	no worries, friend
William_B Posts: 5225 Rating: (1109)
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11/9/2011 12:06 PM	Rate (0)
Ganes10 Platinum Member Joined: 8/31/2010 Last visit: 3/23/2021 Posts: 1496 Rating: (214)	William B. Thanks Ganes10 for the links. This is the same as the documentation inside Step 7 V11.0 - right? There is an alternate solution that came up by following the links (thanks to Ganes10). Hello William B, Yes that was an excerpt of the STEP 7 Professional v11 SP1 online help. Hope it was helpful. Thanks to "*My Documentation Manager"*
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This contribution was helpful to 1 thankful Users William_B

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