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'Discard extreme values' setting not sticking


  • I have a data point which sometimes returns wildly unwanted values, like -4296829.32.
    I must have enabled the 'discard extreme values' option a dozen times (and hit save!) but each time, it never seems to 'stick', and a few days later the nuisance values are still there.

    Any ideas? It is driving me nuts, not to mention screwing up all my graphs!

    {
    "dataPoints":[
    {
    "xid":"DP_952377",
    "name":"AC Active Power (All Phases)",
    "enabled":true,
    "loggingType":"ON_CHANGE",
    "intervalLoggingPeriodType":"MINUTES",
    "intervalLoggingType":"INSTANT",
    "purgeType":"YEARS",
    "pointLocator":{
    "range":"HOLDING_REGISTER",
    "modbusDataType":"FOUR_BYTE_INT_SIGNED",
    "writeType":"NOT_SETTABLE",
    "additive":0.0,
    "bit":0,
    "charset":"ASCII",
    "multiplier":0.001,
    "offset":30775,
    "registerCount":0,
    "slaveId":2,
    "slaveMonitor":false
    },
    "eventDetectors":[
    ],
    "plotType":"SPLINE",
    "unit":"kW",
    "chartColour":"",
    "chartRenderer":null,
    "dataSourceXid":"DS_897950",
    "defaultCacheSize":1,
    "deviceName":"na",
    "discardExtremeValues":false,
    "discardHighLimit":100000.0,
    "discardLowLimit":-1.0,
    "intervalLoggingPeriod":15,
    "purgeOverride":true,
    "purgePeriod":1,
    "textRenderer":{
    "type":"ANALOG",
    "useUnitAsSuffix":true,
    "unit":"kW",
    "renderedUnit":"kW",
    "format":"00.00"
    },
    "tolerance":0.0
    }
    ]
    }


  • What version of Mango are you using. I'm pretty sure this issue has been resolved in the latests 2.4.X release.

    Joel.


  • 2.1.0 - sounds like it is time to upgrade!


  • Yeah, upgrading will fix that. I would recommend upgrading to 2.4.2 and you'll find quite a few improvements and bug fixes.

    Here is the link to get all the files and at the bottom of the page are the upgrade instructions:
    http://infiniteautomation.com/index.php/download