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dylan

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Posts posted by dylan

  1.  

    Hello

     

    can anybody help me .

    I'm trying to set up comms between citect 7.3 and a Unitronics 570.

    Do i have to run it between UniOPC and the HMI or can i connect direct..also what address would you label MI 2 for example when compared to MB 2..

    I have looked at a great video file on the forum already,but im still getting an error on the Scada.

     

    i can send a copy of my program if it helps??

    dylan

  2. Hi joe

     

    At first i assumed the transducer was unstable, but after discussion with a lecturer and testing with a Druck it has been suggested turbulence is the problem. This is because of the setup of the rig is measuring Air flow.  i have fitted a baffle to counter act this and the output is still varying from 1.1 volt to 1.5 volts at a steady input flow . Can i place 2 filters before the  linearization and  would you expect this to work?

     

    Dylan

  3. Hi

    Can anybody Help

     

    i'm a student just starting to use the V570, 

    and i have just a quick question

     

    Can you set an MB to output a mA output to a control valve?

     

    the set up consists of a pressure transducer which inputs a 0.25 - 4 volt input to the plc, then i wish to convert this input to produce an output of 4-20mA which operates a control valve.

     

    I also have a maintenance screen which i want to operate the control valve  independently to the input.( i.e. press a button on the h.m.i and open the valve 25%,50%,75% and 100%) is this possible. Picture attached below.

     

    thanks 

     

    dylan( S.I.S==Stressed Irish Student   :wacko: ).

    post-23357-0-83758300-1395946030_thumb.jpg

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