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Thread: Normalized value with IEC60870-5-101/104

  1. #1

    Default Normalized value with IEC60870-5-101/104

    What is the normalized value with the IEC60870-5-101/104 driver? How do I configure the variable in zenOn?
    The normalized value, e.g. in the "set point command, normalized value" Type 48 - C_SE_NA_1, has a range of -1 .. + 0,99997 (1-2^-15 ).

    So the signal range in zenOn at the real variable must be set accordingly, in order to send the correct values.

  2. #2
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    Best Answer

    Default Re: Normalized value with IEC60870-5-101/104

    Per default variables of data type REAL in zenon has value range -1000..1000, without fraction (digits=0).

    For iec870 variables "measured value, normalized value" - T09, T10, T34, T48, T61 - reconfigure the properties: 'value calculation' - 'digits', 'signal range' and 'measuring range' to:
    • digits = 4
    • min = -1.0000
    • max = 0.9999

    or create own data type basing on REAL with these settings and link to "normalized value" variables, instead original REAL.

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