Create a Historical Parameters String
The easiest way to define a historical parameter string is to copy it from a TrendWorX64 Viewer:
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Open GraphWorX64 to a new display.
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Add a TrendWorX64 Viewer.
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Open the trend configuration.
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Select the pen.
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Click on the ellipsis (...) button for Connection.
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Select Configure.
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Use the Connection Configuration dialog to choose your aggregate and other settings.
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Click OK.
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Copy the text from the Connection field and paste it into your parameters property in the KPIWorX trend or microchart widget.