Database storing

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  • #1148
    Avatarfahrur
    Participant

    hi mikahil

    does the modDBexport only store data to database when the value changing?

    i have problem with Frequency (Hz) values, as you know typical frequency values stable at 50 hz, and in modDBexport i see inside database, rapidscada only insert new data when the frequency changing.

    as a result when the frequency value from database used in realtime chart the data trend will jump to the next changing value.

    thankyou

    #1150
    MikhailMikhail
    Moderator

    Hi,
    The module executes SQL every time when data are received from Communicator. But Communicator doesn’t send data if they are not changed. You can set the parameter Sending all device data period in Communicator to solve the issue.

    #1151
    MikhailMikhail
    Moderator

    How do you make charts for the data from DBMS?

    #1153
    Avatarfahrur
    Participant

    i use highchart spline tipe updating each second, here is highchart demo http://www.highcharts.com/demo/dynamic-update

    #1154
    MikhailMikhail
    Moderator

    Thanks! Do need programming to integrate it with database or it is out of the box?

    #1156
    Avatarfahrur
    Participant

    yes, its use javascript ajax script to load data every second

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