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How to build a loop with LAD?

Created by: freefly2009 at: 3/2/2010 2:50 PM (13 Replies)

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3/2/2010 2:50 PM	Rate (0)
freefly2009 Member Joined: 11/29/2009 Last visit: 1/13/2025 Posts: 19 Rating: (0)	Robster You can try FieldRead and FieldWrite instructions. Read every char of the string and write it to an array. Build a loop triggered on string length. How to build a loop with LAD?
	Last edited by: O_Moderator at: 3/5/2010 9:37 PM new subject after splitting from /tf/WW/en/Posts/40432#top
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This contribution was helpful to 1 thankful Users JEFF_907548

3/2/2010 4:20 PM	Rate (0)
Denilson Pegaia Platinum Expert Joined: 9/23/2005 Last visit: 3/14/2025 Posts: 4406 Rating: (1475)	Hi, you need to mount Labels and conditional jumps (ladder logic to enable the jumps).
	Denilson Pegaia Siemens Industry Sector Technical Support
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3/18/2010 4:20 PM	Rate (0)
Denilson Pegaia Platinum Expert Joined: 9/23/2005 Last visit: 3/14/2025 Posts: 4406 Rating: (1475)	Hi, here there is a sample project of for next program Attachment ForNext.zip (1159 Downloads)
	Last edited by: Denilson Pegaia at: 5/12/2017 1:02:17 PM Denilson Pegaia Siemens Industry Sector Technical Support
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This contribution was helpful to 2 thankful Users Yu-wen Tang socrames

9/4/2012 12:41 PM	Rate (3)
Denilson Pegaia Platinum Expert Joined: 9/23/2005 Last visit: 3/14/2025 Posts: 4406 Rating: (1475)	Hi, same program, as PDF format Attachment ForNext.pdf (2546 Downloads)
	Last edited by: Denilson Pegaia at: 5/12/2017 1:03:27 PM Denilson Pegaia Siemens Industry Sector Technical Support
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This contribution was helpful to 2 thankful Users elle_ko NewGuyOnEarth

12/8/2017 1:59 PM	Rate (0)
hsercantaskin Posts: 1 Rating: (0)	Hello, thanks for your sharing. However, i couldn't run this code. i don't know the reason.
hsercantaskin Posts: 1 Rating: (0)
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12/8/2017 2:54 PM	Rate (0)
mindware Platinum Member Joined: 3/30/2011 Last visit: 3/14/2025 Posts: 738 Rating: (258)	hsercantaskin Hello, thanks for your sharing. However, i couldn't run this code. i don't know the reason. it is a 5 year old post..... do you notice??? however if you explain better someone can help you to understand the reason......
	★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★ PS: If this post did really help you, you may use the Rate-button ★★★ ★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
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12/8/2017 5:55 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 3/10/2025 Posts: 15721 Rating: (2487)	When you say you could not run it, do you mean, you could not retrieve the archive because you do not have V13, or, do you mean you had no problem retrieving the archive, no problem opening the archive, but when you tried to implement it in a real plc, it would not run? What does "could not run mean"? Did it watchdog fault the plc? hsercantaskin Hello, thanks for your sharing. However, i couldn't run this code. i don't know the reason.
	science guy
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3/16/2018 2:58 AM	Rate (0)
emoth Advanced Member Joined: 8/10/2016 Last visit: 3/27/2024 Posts: 19 Rating: (0)	hi, expert. i try this, loop order. but why only MW1 counting. why mw2 not also running? Attachment loop.jpg (1630 Downloads)
	Lamun Keyeng Insya Alloh Pareng
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3/16/2018 7:32 AM	Rate (0)
#dP Posts: 2826 Rating: (690)	emoth hi, expert. i try this, loop order. but why only MW1 counting. why mw2 not also running? Hello. Siemens PLC use bytes as base. Therefor MW1 comprises of MB1 and MB2, where MW2 is MB2 and MB3. That means those addresses overlaps at MB2. Consider using global DBs for memory. Use the S7-1200 System Manual as reference. BR
#dP Posts: 2826 Rating: (690)
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This contribution was helpful to 2 thankful Users Duris_I mindware

4/8/2019 4:40 AM	Rate (0)
cemare Posts: 5 Rating: (0)	I myself have tested the code provided, and I still don't understand why the second sum does not increase, I already test using per byte (mb100). thank you
cemare Posts: 5 Rating: (0)
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