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  #1  
Old 04-13-2010, 09:13 PM
Chemence Chemence is offline
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Join Date: Apr 2010
Posts: 3
Relay Output

I understand how Sinking and sourcing outputs work on PLCs but I dont understand how Relay outputs work, could someone explain this to me? Thanks!
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  #2  
Old 04-13-2010, 09:17 PM
bcarlton bcarlton is offline
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Join Date: Dec 1999
Location: Yakima, WA
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(Not facetious) Do you understand how a relay works?

Assuming you do view page 2-20 of the DL06 User manual. Chapter 2 is available here.

Note that this is only one example of how the contacts of relays may be presented to terminals in PLCs. Some may have the NO, NC and Pivot all to individual terminals affording complete isolation from the other relay contacts. You will have to carefully look at wiring diagrams for the specific hardware you will use.

Not that the coil wires are controlled by the PLC and are not present on any terminal.
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Last edited by bcarlton; 04-13-2010 at 09:32 PM.
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  #3  
Old 04-13-2010, 09:29 PM
Chemence Chemence is offline
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Yes I understand that I was just having trouble seeing how it works as an output on a PLC. Sorry if these questions seem stupid Im all new to the world of automation and learning as I go. Thanks!
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  #4  
Old 04-13-2010, 09:32 PM
Chemence Chemence is offline
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Ah that clears it right up. Im going to have to read that whole manual as Im sure i will learn a lot. Thanks again!
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