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LOGO 8 as a solar panel tracker.

4/18/2016 10:49 PM	Rate (0)
EIC_CONTROL Posts: 198 Rating: (36)	Hi experts any one have a idea how to track solar panels with logo oba8 hardware. if yes can any one make a sample program for this purpose . and what kind of sensor required. Thanks in advance
EIC_CONTROL Posts: 198 Rating: (36)
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4/19/2016 5:45 AM	Rate (0)
Navnag Platinum Member Joined: 11/21/2007 Last visit: 7/25/2025 Posts: 2326 Rating: (309)	Hello Although Logo has a built in Astronomical Clock( Calculating Sunrise and Sunset times ) , I don't think it can be used to control a Solar Tracker. For Solar Tracker, you need besides Astro Clock, an algorithm for calculating position of the Sun in the sky and controlling of 2 Axes to keep pointing at the sun. The following Will help you understand the issue further : Solar Position Algorithm for s7-1200 S7-1200 Solar Tracker-1 S7-1200 Solar Tracker-2 Hope this helps Cheers Navnag
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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This contribution was helpful to 1 thankful Users EIC_CONTROL

4/19/2016 6:03 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/11/2025 Posts: 35949 Rating: (4500)	Perhaps this topic helps you: https://support.industry.siemens.com/tf/ww/en/posts/logo-solar-tracking/30758/?page=0&pageSize=10

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4/19/2016 8:15 AM	Rate (2)
Helmut_13 Posts: 2930 Rating: (432)	Hi, with the astronimical clock in LOGO! you can go to start possition (sunrise), then it turns I believe 1° in 6 minutes. Very poor but simple possitioning. A nother way it to use two small solar panels and fix them at the backside together. In LOGO! use one AI for each of the "sensor" panels. The side where the sun in more you get a higher voltage. So you know where the sun in and have to turn untill the voltage of both panels is equal. Don't forget to add a hysteresis other wise it will move if a light comes to the sensor panel. Hope this helps and good luck.
Helmut_13 Posts: 2930 Rating: (432)
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This contribution was helpful to 2 thankful Users Navnag EIC_CONTROL

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