Welcome to our new forum
All users of the legacy CODESYS Forums, please create a new account at account.codesys.com. But make sure to use the same E-Mail address as in the old Forum. Then your posts will be matched. Close

Function Block Temperature Control by Digital Output

Engineering 🇬🇧
stefan-setec
2023-07-20
2023-07-24

  • stefan-setec - 2023-07-20

    Hi, I'm looking for a function block for the following.
    Input: Set Value in °C
    Input: Actual Value in °C (measured by a PT1000 sensor)
    Output: Digital output that controls a Solid State Relay.

    Application: Controlling the temperature of a welding bar as precise as possible.

    Who can help me?

    I allready looked at PID solutions, but they all put out a analog value.

    Thanks for the help.

     

  • necati - 2023-07-21

    You can use PWM for this purpose. Assume that you have 0 to 500 unit analog PID output. Convert this value to percentage and use it as ON time.

     

  • stefan-setec - 2023-07-24

    Hi, thanks for the answer.
    It's a good idea, I will work it out and let you know the outcome.

     

Log in to post a comment.