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What does the term PLC mean?

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  • March 23, 2005 at 2:30 am #38814

    Jen
    ★ 10 Years ★
    Participant

    Hello.  I am searching the web for employment for my husband.  We recently came upon the term ‘PLC’, and would like to know what these initials stand for.  Could anyone help us?  We were curious as to the meaning of the term as it was used in a manufacturing job posted on the internet.
    Thanks for your assistance.

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    March 23, 2005 at 2:50 am #116685

    Mikel
    ★ 10 Years ★
    Member

    Programable Logic Controller – the best of which are made by the famous Allen Bradley company of Milwaukee.

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    March 23, 2005 at 3:01 am #116686

    Jen
    ★ 10 Years ★
    Participant

    Thanks, Stan.  That was a quick response to my query.  We appreciate it!

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    March 23, 2005 at 4:05 am #116696

    Dayton
    ★ 10 Years ★
    Member

    Stan’s undoubtedly correct – again.  But it also depends somewhat on how it was used.   If used in terms of manufacturing equipment then it is the controller described by Stan.  If it was used after the name of the manufacturing entity itself, such as William’s Widgets, PLC, then it means Public Limited Company.  And don’t get me started on Product Life Cycle, Power Line Communication, ……..
     Vinny

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    March 23, 2005 at 4:55 am #116700

    Agent T
    ★ 10 Years ★
    Participant

    HI Ya
     
    PLC Stands for many things                                                                              
     
                    Public Limited Company (UK)                                                         
                    Packet Loss Concealment                                                                 
                    Palestinian Legislative Council                                                         
                    Park Lane College (UK)                                                                   
                    Parti Liberal du Canada                                                                     
                    Partido Liberal Constitucionalista (Constitutional Liberal Party; Nicaragua)      
                    Partners in a Learning Community                                                   
                    Pathetic Losers Club                                                                         
                    Patrol Leaders’ Council (Boy Scouts of America)                              
                    Peace, Love, and Care                                                                      
                    Performance Level Category                                                            
                    Personal Line of Credit                                                                     
                    Phase-Locked Clock                                                                         
                    Phospholipase C                                                                               
                    Pigmented Lesion Clinic                                                                   
                    Pilot Lighting Control (aviation)                                                      
                    Planar Lightwave Circuit                                                                  
                    Platform LAN Connect Device (Intel Pentium processors)              
                    Platoon Leaders Class                                                                       
                    Platoon Leader’s Course (USMC Officer Program)                            
                    Point of Last Contact                                                                       
                    Polymer Liquid Crystal                                                                     
                    Positive Living Centre (Australia)                                                    
                    Potomac Literary Club                                                                     
                    Power Level Controller                                                                    
                    Power Line Carrier (using power lines to carry data/voice signals)     
                    Power Line Conditioner                                                                    
                    Power Line Coupler                                                                          
                    Powerline Communication                                                                
                    Preparative Liquid Chromatography                                                 
                    Presbyterian Ladies’ College (Australia)                                            
                    Pressurized Logistic Carrier                                                               
                    Primary Leadership Course (US Army)                                             
                    Private Label Card                                                                            
                    Private Leased Circuit                                                                       
                    Product Life Cycle                                                                            
                    Professional Loss Control                                                                 
                    Program Level Change (tape)                                                           
                    Program Library Control                                                                  
                    Programmable Logic Circuit                                                             
                    Programmable Logic Control(ler)                                                     
                    Progressive Learning Center                                                             
                    Project Life Cycle                                                                            
                    Projected Line Charge                                                                      
                    Psycho Le Cemu (Japanese band)                                                      
                    Public Level Crossing                                                                        
                    Public Service Commission (Canada)                                                 
                    Puerto La Cruz (Venezuela)                                                              
     
     
    Woof Woof

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    March 23, 2005 at 4:56 am #116701

    Steve Mullaney
    ★ 10 Years ★
    Member

    Power Line Communication (PLC) is the notion of transmitting data over power grids at 802.3-like speeds.  Is generally regarded as unreliable because of lack of standards and both inherent and induced noise.
    However, in the manufacturing world, the PLC you referenced in most likely Programmable Logic Controller.  PLCs are commonly used to control machines and subsystems in a manufacturing environment. Virtually any device that needs some type of electrical control can benefit from a PLC.  The PLC is essentially a state machine; the decision to turn the outputs on/off is based on the state of the inputs.  Programming the PLC customizes it to a specific application.

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    March 24, 2005 at 3:05 am #116748

    Jen
    ★ 10 Years ★
    Participant

    Hello, Steve.  Thanks very much for the answer to ‘plc’.  You people are really great!  Whenver I have needed some technical information, you have always been there to assist.
    Thanks for your help.
     

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    March 24, 2005 at 3:08 am #116749

    Jen
    ★ 10 Years ★
    Participant

    Thanks, Vinny.  I appreciate your reply regarding the meaning of  ‘plc’. As always, I don’t know what I would do without people of your calibre.
     
    Thanks again.

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    March 24, 2005 at 1:53 pm #116771

    FTSBB
    ★ 10 Years ★
    Participant

    you left one off – PLC = peace, love & crabs (little advertising for ya)
    Thanks for the breath of fresh air.  Guess Jen will still have some homework to do before going into that interview – better pick the right acronym!

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    July 8, 2006 at 6:57 am #140086

    Abuthalif V.M.N
    ★ 10 Years ★
    Participant

    Dear Sir,
          I would like to know about entire concept of PLC programming as well as operation,So kindly give me a full details on this.
    Thanking you.
    V.M.N.Abuthalif.

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    July 10, 2006 at 4:42 pm #140135

    Heebeegeebee BB
    ★ 10 Years ★
    Participant

    Trygooglingtheterm.Ididandsoshouldyou.

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    July 10, 2006 at 4:48 pm #140137

    Heebeegeebee BB
    ★ 10 Years ★
    Participant

    Abuthalif,
    On a serious note, I googled the term and came up with over 300,000 hits and it only took me 10 seconds to type it in.

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