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<< Contents
<< Workbar
<< WorkBar Tabs
<< Channels Tab
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Click the "A/D Conversion" button to edit the formula used to convert analog values.
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Channel groups must contain 2 or more channels to use the A/D Conversion feature.
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Channels connected to a sensor's digital output (voltage, current, temperature, etc.) can be displayed as analog values.
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Sensor which output their values via serial bus (SPI, I2C, UART, etc.) can be displayed as analog values using the A/D Conversion feature in the Serial Tab.
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Check this option to enable the formula for the channel data.
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Check this option to allow negative results.
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Enter the number of digits displayed past the decimal point.
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Display Units:
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Enter the text to display next to each analog result value.
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The offset and gain values depend on the sensor. The manufacturer's documentation for the sensor provides the offset and gain value.
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The scaler value is used to adjust the result for the units you want to display.
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For example, if the scaler is 1 and the analog result is 0.00145 volts, then entering a scaler of "0.001" adjusts the result to 1.45 mV.
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Likewise, using a scaler value of 100 adjusts 1450 mV to 1.45 volts.
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The formula used to convert the digital bus values to analog result is...
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Result = (((bus_value - Offset) / bus_max) / Gain) / Scaler
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The "bus_max" value is defined by the number of channels in the group.
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For example, a 16-bit group's maximum value is 65,535.
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Copyright and trademark information
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