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Plc traffic light - part 2
electrovlog
48 views
Ladder logic traffic light.
(I fixed a mistake at the end of the first part)
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DIY earthquake detector
electrovlog
2,137 views
When an earthquake hits a primary wave and a destructive wave travel through the earth surface. The primary wave is faster, but causes a small tremor that we can not feel. ...
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Plc traffic light
electrovlog
989 views
Due to a request I wrote this ladder diagram for a traffic light and tested it on my S7200 plc.
Outputs setting:
Q0.0-Q0.3 - green light
Q0.1-Q0.4 - yellow light
Q0.2-Q...
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Plc shift register
electrovlog
198 views
Just for fun I wrote a ladder diagram for a 4 stages bidirectional shift register.
I tested it on a S7200 plc.
Ladder logic is also used on pic microcontrollers.
http://...
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How a relay logic elevator works
electrovlog
1,444 views
This dynamic circuit diagram (made for educational purpose) shows how a relay logic elevator works.
Note that actually relays and contactors have a time response of a frac...
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Relay logic elevator
electrovlog
904 views
For a better quality watch this: http://www.youtube.com/watch?v=dwJ6LV-3HYc
This dynamic circuit diagram shows how a relay logic elevator basically works.
Note that actua...
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Bistable relay circuit
electrovlog
733 views
This circuit can be used to make bistable a normal relay.
It works with 24 Volt power supply, but the relay coil is 12 Volts - 140ohm.
More info and circuit schematic: ht...
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Relay motor driver
electrovlog
187 views
This relay logic circuit may be useful for a rolling shade motor. The relay keeps on if the button is pressed for 4 seconds or more.
I designed and built this circuit just...
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Led flasher circuit
electrovlog
832 views
Led flasher circuit using the inverted output signals of a CD4017. The circuit works as a bidirectional shift register.
http://elettronicaetecnologia.blogspot.com/2011/07/...
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Effetto supercar con 8 led
electrovlog
641 views
Just for fun I built a led scrolling circuit based on two CD4017 counters.
Circuito shift register con due contatori CD4017 che lavorano alternativamente, pilotando i led ...
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