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  • Christmas 2017 countdown has begun. Most people reveal their displays the day after Thanksgiving. Will you be ready???
  • Why do we love Christmas? It's all about the traditions. In this chaotic world we can miss the "good old days." Christmas reminds us of that time.
  • The first recorded date of Christmas being celebrated on December 25th was in 336, during the time of the Roman Emperor Constantine. A few years later, Pope Julius I officially declared that the birth of Jesus would be celebrated on that day.
  • Santa Claus's sleigh is led by eight reindeer: Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Dunder (variously spelled Donder and Donner), and Blixem (variously spelled Blixen and Blitzen), with Rudolph being a 20th-century inclusion.
  • Outdoor Christmas lights on homes evolved from decorating the traditional Christmas tree and house with candles during the Christmas season. Lighting the tree with small candles dates back to the 17th century and originated in Germany before spreading to Eastern Europe.
  • That big, jolly man in the red suit with a white beard didn’t always look that way. Prior to 1931, Santa was depicted as everything from a tall gaunt man to a spooky-looking elf. He has donned a bishop's robe and a Norse huntsman's animal skin. When Civil War cartoonist Thomas Nast drew Santa Claus for Harper's Weekly in 1862, Santa was a small elflike figure who supported the Union. Nast continued to draw Santa for 30 years, changing the color of his coat from tan to the red he’s known for today.
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    4. Christmas Tree Ver2.avi
    5. Shooting Star Ver2.0.mp4

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Christmas_House_2017.mp4

aabeck
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My house display for 2017 Christmas. The outside lights and living room window lights are controlled by an Allen Bradley SLC5/04 PLC. The door wreath is controlled by a Siemens S2-200 PLC, with the power to it controlled by the living room SLC5/04. Most of the light strings have been cut into 10 bulb sections to run on 24 volts DC provided by separate power supplies. The flickering candles in the kitchen window are 4 volt bulbs wired to a TTL transistor logic card, and each of the 7 is controlled with it's own subroutine. TO get 4 volts I have a 5 volt power supply run through a potentiometer to reduce the voltage to 3.7 volts - it is easier on the bulbs and makes them a little dimmer than full brightness so they appear more like candles.

The kitchen window is controlled by a SLC5/03 PLC, and another SLC5/03 controls the tree that I put out in the side yard this year.

The PLC's are synced with messaging by a home control SLC5/05 in my home office, through NET-ENI's. A network COM port on the tree PLC is  messaged to through a data-subscriber on the HMI.
All features (along with the home controls, monitoring and alarms) are controllable and adjustable by a computer and a Windows tablet both running AdvancedHMI.


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Aabeck's album

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