Results 1 to 3 of 3

Thread: Temperature control with 2 S-ports

  1. #1
    Join Date
    01.05.2009
    Location
    Vienna, Austria
    Posts
    21

    Default Temperature control with 2 S-ports

    Hi

    I have 2 different kinds of fans to reduce the temperature.

    1 x large fan, which is very quiet and works wonderful in the winter time.

    Set of 5 x smaller fans but more noisy.

    Now that it is getting warmer, the 1 larger fan cannot cope reducing the temperature effectively so I needed to add the other 5 as well, but they are noisy in the living room and I would like them to come on only if temperature gets say > 26.

    is it possible to have the large fan come on when temperature > 25.4 and then if the temp goes above 26 to let another socket switch on the 5 small fans?

    I have a Profilux II Plus with only one temp. censor.

    Chris

  2. #2
    Join Date
    07.06.2009
    Posts
    738

    Default

    I would make a virtual probe of your temp sensor
    and then put the nominal value of the virtual different then the real probe.
    attach fan1 to the socket where you have temp probe 1
    attach fan 2 to the socket where you assign the virtual probe


    remark; if you have never worked with virtual probes , you need to make them on the system itself. its not possible to create them in PLC. once created you can configure/monitor them like normal probes in PLC.

  3. #3
    Join Date
    01.05.2009
    Location
    Vienna, Austria
    Posts
    21

    Default

    Quote Originally Posted by Blahenazo View Post
    I would make a virtual probe of your temp sensor
    and then put the nominal value of the virtual different then the real probe.
    attach fan1 to the socket where you have temp probe 1
    attach fan 2 to the socket where you assign the virtual probe


    remark; if you have never worked with virtual probes , you need to make them on the system itself. its not possible to create them in PLC. once created you can configure/monitor them like normal probes in PLC.
    Many thanks Blahenazo, I did not know it was possible and so easy.
    It works perfectly!!

    Chris

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •