KEPServerEX now supports direct scaling of device data. Scaling allows raw device
data to be converted to engineering units for OPC client applications. KEPServerEX
provides a number of unique scaling features that make it easy to implement scaling
in your application. KEPServerEX now supports direct scaling of device data. Scaling allows raw device
data to be converted to engineering units for OPC client applications. KEPServerEX
provides a number of unique scaling features that make it easy to implement scaling
in your application.
The Scaling in KEPServerEX supports Linear and Square Root formulas. You can specify the range of the raw data from your device and the engineering range of the scaled value. In some cases the raw data received from a device may exceed the range set for the raw data. If this occurs the engineering value can be forced outside of the range you desire. To prevent this, KEPServerEX allows you to specify that the scaled value be clamped to the engineering ranges. In most cases it is always assumed that a scaled value results in a floating point number. KEPServerEX doesn't make this assumption and allows you to select the scaled engineering value to be any valid OPC data type. This means you can scale a 16 bit integer value to a 32 bit integer value. "Double" is the default data type for all scaled values. To make scaling complete, KEPServerEX allows you to specify the units for the scaled tag. A string of up to 32 characters can be entered and attached to the tag. If the OPC client application in use supports access to OPC tag properties, the data ranges and the units can be used in the OPC client to automatically configure objects like user input or data displays.
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