Calc Driver
Information
This allows you to perform simple calculations on ARDI data.
| Driver Info | Detail |
|---|---|
| Driver Type: | Live and Historical |
| Platforms: | All |
Driver Settings
This driver doesn't require any configuration.
Point Settings
The only setting the point needs is the calculation you'd like to perform.
You can use Python functions (such as abs, pow, sqrt etc.) in the calculation, along with any ARDI property names.
ARDI properties are surrounded by curly-braces, and contain the asset name, a period (.) and the property name.
For example, if you had two laser distance sensors measuring the height and width of a product as it left to be packaged, you'd be able to calculate the area with…
{Product Height Sensor.Distance} * {Product Width Sensor.Distance}
Performance Note
Running historical queries on calculated points can take some time, as all of the points involved in the calculation have to be read and processed.
Where possible, we suggest calculating these figures in your control system, historian or via a system like ARDI's ModelHost package, where it can be recorded back into your data backend.