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Thread: siemens uc ?

  1. #1
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    siemens uc ?

    on the older system 600 uc what would be the slope/intercept for a 1000 ohm RTD(40-120)degree sensor? part number 544-300

  2. #2
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    Check out Appendix B. Slopes and Intercepts of this manual

  3. #3
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    cant i use the slope/intercept tool in point editor???

  4. #4
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    There is no option for UC in point editor. Your 1000 ohm RTD would have a slope of 0.1 and intercept of -40.0, not taking into account wire size or lenght.

  5. #5
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    I also have a UI that I would like to connect a 4-20 ma pressure transducer. How would I set up for this. Book does not have my range. 0 to 100 psi

  6. #6
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    Wink

    From the Book table B-3;
    Range Slope Intercept
    0 - 100 0.038435 -25.0

  7. #7
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    I have another sensor that is 0 -65 psi. How would I figure the s/I for this??

  8. #8
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    Formulas for a 4-20mA input on a UC
    Slope = (V2 - V1) / 2602
    Intercept = V1 - (Slope x 650)

    Sensor 0-65
    V1 = 0
    V2 = 65

    Slope = (65 - 0) / 2602
    Slope = 0.024981

    Intercept = V1 - (Slope x 650)
    Intercept = V1 - (0.024981 x 650)
    Intercept = -16.23765


  9. #9
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    Thanks for all the info....

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