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#54025 - 07/14/05 06:18 AM ladder diagrams?
Jps1006 Offline
Member
Registered: 01/22/04
Posts: 615
Loc: Northern IL
I think that's what it's called, ladder diagram. You know, the control wiring schematic that has the numbered lines down the one side and has each switch, load, etc. called out, and then referenced to the line number that shows another diagram.

Well, can someone explain how these are supposed to be read? It was explained to me once very quickly, and I have muddled my way through troubleshooting with one before, but I have a hard time seeing how what is on paper really relates to what I am looking at. Even a link or recommended book would be helpful.
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#54026 - 07/14/05 08:48 AM Re: ladder diagrams?
NJwirenut Offline
Member
Registered: 09/15/01
Posts: 806
Loc: Bergen County, NJ
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#54027 - 07/14/05 11:15 AM Re: ladder diagrams?
rad74ss Offline
Member
Registered: 04/19/04
Posts: 156
Loc: Pryor, OK USA
I sent a PDF document direct to you. It may take a while due to my spam filter. Keep in mind that the drafting program has a lot to do with the layout and numbering systems. Logic diagrams (like PLC logic) are a whole nother animal.

Flow is left to right. Contacts are usually shown in the de-energized position.
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#54028 - 07/15/05 12:02 AM Re: ladder diagrams?
mxslick Offline
Member
Registered: 10/24/04
Posts: 803
Loc: Atomic City, ID USA
Excellent link, NJwirenut!!
_________________________
Stupid should be painful.
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#54029 - 07/16/05 04:47 AM Re: ladder diagrams?
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Good on ya Kenny!.
Great link!.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin
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#54030 - 07/19/05 05:52 PM Re: ladder diagrams?
Jps1006 Offline
Member
Registered: 01/22/04
Posts: 615
Loc: Northern IL
Hey guys, thanks for the replies. I just got back from vacation and have a ton of catch up, but am going to check out NJ's link a bit more carefully when I get a chance and Rad, I got your Email, thanks. Be expecting a few Q's as I browse over your example. Thanks again
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