A VoltageInputPoint is a NumericPoint with NdioVoltageInputProxyExt. It configures a UI to read a Vdc signal from 0-to-10V. Currently, configuration provides for reading in volts or a linear response in other units, by selecting “Linear” as the conversion type. See Scale and offset calculation (linear).
Besides reading a 0-10Vdc sensor, this point is also used for a 4-20mA sensor, where an external 500 ohm resistor is wired
across the UI terminals. In this case only, select the “500 Ohm Shunt” as the point’s conversion type. See Conversion types in Ndio proxy points for more details.
The VoltageInputPoint is pre-configured with a linearCalibration extension, to allow for offset correction. For details, see Linear Calibration Ext.
The VoltageInputPoint’s Proxy Ext contains only common Ndio Proxy Ext properties. Among these, note that the read-only “Device Facets” property is preset to volts (V).