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Created by: Saradhi at: 5/11/2012 12:14 PM (8 Replies)

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5/11/2012 12:14 PM	Rate (0)
Saradhi Posts: 303 Rating: (3)	Hi all, Here i'm including a sample program that had developed in S7-200 using indirect addressing. i want the same logic into S7-300. If it is possible means help me. Attachment pointer.jpg (127 Downloads)
Saradhi Posts: 303 Rating: (3)
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5/11/2012 12:41 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	Saradhi Hi all, Here i'm including a sample program that had developed in S7-200 using indirect addressing. i want the same logic into S7-300. If it is possible means help me. Hello Saradhi, I think "SFC20" as block move can help you.see attachment for more information. You use SFC 20 "BLKMOV" (block move) to copy the contents of a memory area (= source area) to another memory area (= destination area). Permissible source areas are the following: · Parts of data blocks · Memory bits · Process-image partition (part process image) for inputs · Process-image partition (part process image) for outputs The source parameter can be a part of the data block in the load memory which is not relevant to program execution (DB compiled with the keyword UNLINKED). Best regards, Hamid Hosseini Attachment SFC20.pdf (149 Downloads)
	Demo Channel on Youtube
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5/11/2012 12:55 PM	Rate (0)
Saradhi Posts: 303 Rating: (3)	If you don't mind please go through the image again. I'm not asking about the blkmov instruction where it is availble in s7-300. it is regarding indirect addressing. in the image network 2: blkmov vw10000 to 4 bytes to *ld4. how can i repreent this in S7-300
Saradhi Posts: 303 Rating: (3)
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5/11/2012 2:41 PM	Rate (1)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	Saradhi If you don't mind please go through the image again. I'm not asking about the blkmov instruction where it is availble in s7-300. it is regarding indirect addressing. in the image network 2: blkmov vw10000 to 4 bytes to *ld4. how can i repreent this in S7-300 Hello Saradhi , This what you need to implement: [code] CALL "BLKMOV" SRCBLK :=P#I 0.0 BYTE 10 RET_VAL:=MW1000 DSTBLK :=P#Q 0.0 BYTE 10[/code] Golden rule while working with Step7.When working on a function or a system function(from libraries) or instructions you can get help on that by stroking "F1" key.More information on this case in the attachment. Best regards, Hamid Hosseini Attachment SFC20.zip (106 Downloads)
	Last edited by: hdhosseini at: 5/11/2012 2:49 PM //attachment Demo Channel on Youtube
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5/15/2012 4:25 AM	Rate (0)
ALGUDKAR RAO Posts: 621 Rating: (10)	Saradhi Hi all, Here i'm including a sample program that had developed in S7-200 using indirect addressing. i want the same logic into S7-300. If it is possible means help me. Hello saradhi as per hdhosseini posted you have to impliment your program,check the attachment you asked FC20 where its available regards algudkar Attachment 1.jpg (94 Downloads)
ALGUDKAR RAO Posts: 621 Rating: (10)
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5/15/2012 6:52 AM	Rate (0)
Saradhi Posts: 303 Rating: (3)	In my s7-200 program the destination address is not constant, when i use BULKMOV i can only pass values to a specified register only.
Saradhi Posts: 303 Rating: (3)
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5/15/2012 10:48 AM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	Saradhi In my s7-200 program the destination address is not constant, when i use BULKMOV i can only pass values to a specified register only. Dear Saradhi, You want to change source and distination address dynamicaly during runtime.I remember to answer same cases in the forum before(in same conference).You can manipulate "ANY" pointers by codes. Search for the samples done before. Best regards, Hamid Hosseini
	Demo Channel on Youtube
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5/15/2012 2:26 PM	Rate (0)
Saradhi Posts: 303 Rating: (3)	If possible can you please convert the s7-200 program into s7-300 and send to me.
Saradhi Posts: 303 Rating: (3)
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5/17/2012 6:33 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	Saradhi If possible can you please convert the s7-200 program into s7-300 and send to me. Hello Saradhi, This is what I have meant.Reading the following threads will help you solve the problem. Question about SFC20 BLKMOV Please help me with this FC out parameter with ANY type Ask if something is missing! Best regards, Hamid Hosseini
	Demo Channel on Youtube
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