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  1. johnnyplang

    only one instance

    what code is there to have only one instance of an external program?
  2. johnnyplang

    PC interface as HMI to replace dedicated HMI advice

    We have been using alot of Panelmates and Panelviews but want to start using PC's. We have been looking at Parker's CTC and A/B Rsview. I like the CTC look (graphics) but they are lacking some of the features like recipe management, data logging, advanced trending, and SPC without going to some...
  3. johnnyplang

    power supply cooling calculation

    I have a power supply that is rated at 10Kw. The power supply efficiency is 90% and is water cooled. I am trying to calculate the temperature rise in a 20 gallon tank if the power supply is running for a minute. Is the water flow necessary for the calculation? Can anyone help an electrical guy...
  4. johnnyplang

    VB for HMI application

    I haven't worked with VB yet but am wondering how to get started creating a HMI program using VB. Any suggestions on where to start (book, website)?

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