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View Full Version : [LOGIC GATES] Constructing Ladders.


ZaZu
Feb13-10, 01:49 PM
Hey guys I have a question that is confusing me.

It is mentioned that the N.C -[/]- (normally closed) contact is similar to a Logical invertor (NOT).

How is a --|NOT|-- similar to a --[/]-- contact ?

Can someone please explain this with diagrams ?

Thank you very much !!

I am asking this because I want to know if this model is correct :

Son = On Switch
Soff= Off Switch
Lon = ON light
Loff= OFF light
M= Motor

The on switch should turn on the Motor and ON light. The off button should turn off the Motor and ON light, AND turn on the OFF light.

http://img134.imageshack.us/img134/4277/imag0194.jpg



NOTE : This isnt homework, this is an inquiry.