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Set/Reset Range of Bits

Created by: Saravana kumar at: 6/24/2010 12:40 PM (10 Replies)

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6/24/2010 12:40 PM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 8/19/2024 Posts: 939 Rating: (118)	Dear All, Is there any block in Simatic Manager to Set or Reset Range of bits (Memory bits and DB bits) like in the Step7 Microwin. I tried with SFC 79 & SFC 80, but I did't gotsuccess.
	Last edited by: Saravana kumar at: 6/24/2010 12:41 PM _______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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6/24/2010 1:06 PM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 11/7/2024 Posts: 3026 Rating: (1057)	Hello Saravana kumar have a look at SFC21 "Fill" ("fill" all bits with 0's to reset them and "fill" all bits with 1's to set them). The only thing to look out for is that the number of bits must be a mltiple of 8 (use F1 on SFC21 to find out more about it). I hope this helps
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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6/24/2010 1:18 PM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 8/19/2024 Posts: 939 Rating: (118)	Dearfritz, I have used Fill Block, But as you said the number of bits should be in the multiples of 8. But for my requirement I don't want to give in the multiples of 8. Is there any other method to do it.
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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6/24/2010 1:43 PM	Rate (1)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 11/7/2024 Posts: 3026 Rating: (1057)	There's FC82 (RSET Bit) and FC83 (SET Bit) in the "TI-S7 converting Blocks" library dear Saravana kumar I haven't used these yet though and don't like their MCR dependency, but they will (should) do what you are after. Apart from them you'll find a few Bit related handling blocks in theOSCAT S7 library which may be of use for you (available free of charge from www.oscat.de) That's all I can think of (apart from writing your own block) and I hope it helps
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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This contribution was helpful to 2 thankful Users how come Saravana kumar

6/24/2010 2:33 PM	Rate (0)
AMAZINGAHMED Gold Member Joined: 8/27/2006 Last visit: 10/22/2024 Posts: 719 Rating: (88)	Saravana kumar Dear All, Is there any block in Simatic Manager to Set or Reset Range of bits (Memory bits and DB bits) like in the Step7 Microwin. I tried with SFC 79 & SFC 80, but I did't gotsuccess. Why won't you use normal move command for setting/resetting conteguous address ranges and use normal set/reset command for discrete bits?
	The more you know, The more you know that you don't know
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6/24/2010 2:43 PM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 8/19/2024 Posts: 939 Rating: (118)	DearAMAZINGAHMED, I need to set/ Reset 100 bits at a time. If I am writing a logic to move zero to MD, MW or Mx then is does't look good. That is the reson I am asking for the Set/Reset block.
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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6/24/2010 2:48 PM	Rate (0)
AMAZINGAHMED Gold Member Joined: 8/27/2006 Last visit: 10/22/2024 Posts: 719 Rating: (88)	Another idea here is to make you own FB with inputs of double words, words, bytes and bits and also an input for the mode (set or reset). You can use it over and over to set/reset these ranges in one step.
	The more you know, The more you know that you don't know
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6/24/2010 3:03 PM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 8/19/2024 Posts: 939 Rating: (118)	Dearfritz, Thank you and FC82 and FC83 block are working well. Could you tell me,what are the issue's with MCRdependency. I don't have muck idea about MCR.
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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6/27/2010 10:19 AM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 8/19/2024 Posts: 939 Rating: (118)	DearAMAZINGAHMED, Thank You for your help. I have created a block for set/Reset Range of bits and it is available in thisTIP. Thanks for all.
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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6/27/2010 2:55 PM	Rate (0)
AMAZINGAHMED Gold Member Joined: 8/27/2006 Last visit: 10/22/2024 Posts: 719 Rating: (88)	Congratulations on your effort. I had a fast look on your function and it looks good and efficient. Thanks for sharing it.
	The more you know, The more you know that you don't know
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