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False RLO value in network

8/18/2011 8:24 PM	Rate (0)
Oscar_83PL Silver Member Joined: 10/22/2008 Last visit: 12/23/2025 Posts: 378 Rating: (5)	Hello, Could toy explain me what us the reason even first in network STO is true the RLO is false? See the attachement for graphis description what I mean. I don't write about system used because I think it is not the clue of problem. best regards, Attachment RLO.JPG (172 Downloads)

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8/18/2011 9:23 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 1/5/2026 Posts: 6892 Rating: (1368)	Oscar_83PL Hello, Could toy explain me what us the reason even first in network STO is true the RLO is false? See the attachement for graphis description what I mean. I don't write about system used because I think it is not the clue of problem. best regards, Hello Oscar_83PL There is set of rules , you should follow the "Rules of entering LAD logic elements".I try to reconstruct your logic by following the rules ,but I could not observe the same phenomenon.You can upload the codes for clarification! Best regards Attachment LAD.zip (176 Downloads)
	Demo Channel on Youtube
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8/24/2011 10:27 AM	Rate (0)
Oscar_83PL Silver Member Joined: 10/22/2008 Last visit: 12/23/2025 Posts: 378 Rating: (5)	Thats the point I have met the problem also first time. As You can see on attachement both comparision in parallel are the same but gives different solution on output of block.

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8/24/2011 11:06 AM	Rate (0)
Aret Posts: 2348 Rating: (265)	LAD "just" has buggy monitoring online view. Try to select another block - some lines may change their color
Aret Posts: 2348 Rating: (265)
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9/2/2011 3:24 PM	Rate (0)
Oscar_83PL Silver Member Joined: 10/22/2008 Last visit: 12/23/2025 Posts: 378 Rating: (5)	I am sure it was not monitoring failure because despite true conditions the line was not giving true value at the end of branch.

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9/2/2011 3:34 PM	Rate (0)
umencho Grandmaster Joined: 3/21/2006 Last visit: 1/10/2026 Posts: 10247 Rating: (1183)	Hello, If you "convert it" in FBD or STL? How is it behavior after? I am also for Aret's words: LAD "just" has buggy monitoring online view. Best regards, Hristo Mihalev

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10/11/2011 10:29 AM	Rate (0)
Oscar_83PL Silver Member Joined: 10/22/2008 Last visit: 12/23/2025 Posts: 378 Rating: (5)	Funny thing. But it does not look as LAD convertion mistake. In attachement there is STL view. I am thinking all the time what could make the mistake in PLC. Attachment sup.JPG (135 Downloads)

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