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| 2/16/2012 3:22 PM | |
Joined: 12/27/2006 Last visit: 8/26/2025 Posts: 1200 Rating:
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Here you have a example programm Working with LOGO! 0BA0 ( very very very old one) and higher AttachmentInOut.zip (544 Downloads) |
| 2/17/2012 9:16 AM | |
Joined: 9/6/2008 Last visit: 3/29/2024 Posts: 134 Rating:
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take a look in this sample is a simple change over switch and i think it make your work easyer b.r Attachmentvalve change.zip (477 Downloads) |
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http://electrotech-techblogg.blogspot.gr/ |
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| 2/17/2012 9:56 AM | |
Joined: 4/22/2010 Last visit: 3/31/2025 Posts: 5697 Rating:
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Hello, Nice example, only thing is it does not work with the OBA0 Inverted inputs are not allowed and so are andports with 4 inputs. Have adjustedthose things to make it work. Regards, Marcjan Attachmentvalve change_oba1.zip (465 Downloads) |
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| 2/17/2012 12:50 PM | |
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Posts: 378 Rating:
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Dear biffdum, Let me answer your question partially, You have mentioned that there is no edge detection on your Logo. I make edge detection function to suit your Logo model(But am not sure) . I attached here the ladder diagram and note that M4 outputs a pulse when there is a positive edge and M9 outputs a pulse when there is a negative edge. Goood luck, Let me know your progress AttachmentEdge Detect.zip (508 Downloads) |
| 2/17/2012 1:38 PM | |
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Joined: 12/27/2006 Last visit: 8/26/2025 Posts: 1200 Rating:
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I had not read your statement. You use 1 input for the feedback of the final position of the cylinders, both ways. Look at the example program, thats better Very simple, works from version 0BA0 The program is not perfect. Because you but 1 input uses a startup never know where the cylinder is! AttachmentInOut2.zip (480 Downloads) |
| 2/17/2012 3:38 PM | |
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Posts: 6 Rating:
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Toeternietoe your ladder is simple but it doesn't loop. I need it to loop until the hopper sensor is satisfied.
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Last edited by: biffidum at: 2/17/2012 3:44 PM |
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| 2/17/2012 3:43 PM | |
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Posts: 6 Rating:
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cdrshortyours almost does it, but your ladder requires 2 pulses from the pressure sensor to switch cylinder directions. This will not be possible as the cylinder will stop advancing on the first pulse and as a result not deliver pressure for a second pulse. Someone also mentioned that an 0BA0 can't invert a sensor input - that is incorrect. Under group functions you will see it has the NOT function which will serve to invert the input. True the 0BA0 does not have the option of directly inverting any input by simply highlighting the small block at the junction.
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Last edited by: biffidum at: 2/17/2012 3:45 PM |
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| 2/17/2012 7:36 PM | |
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Joined: 9/6/2008 Last visit: 3/29/2024 Posts: 134 Rating:
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@Marcjan Attachmentvalve change 0ba0.zip (407 Downloads) |
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http://electrotech-techblogg.blogspot.gr/ |
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