Irrigation/Eto Module; Elk Integration Module - Universal Devices ISY-994i User Manual

6.10 Irrigation/ETo Module

This module is designed to calculate the amount of water that is lost from the soil and
plants and replace it with a close approximation of what was lost. Today in a world of
"Green is good" every consumable resource such as water can be better conserved with
such a tool.
The module takes the local HAM Weather data, the user settings, and calculates each day
the average water that has been lost. The user then can have programs that respond to
these calculations and apply the appropriate amount of water to replace that loss. When
those programs complete they trigger a command that lets the module know that the water
has been applied and can be subtracted from the module's tally. Each day this is done
completing the cycle of tracking the data and applying the water. During cooler times of the
year the watering day's frequency slow down, and during the warmer parts of the year the
watering frequency ramps up to daily.
Figure 90: Ham Weather Settings
See section 17.2 Using the HAM Weather Irrigation Module
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6.11 ELK Integration Module

While the ISY does include some ELK integration built-in, it is fairly limited in that most of
the integration must come from the ELK side. For example, you can write a program on the
ELK to turn a light on through the ISY, but you cannot write an ISY program that turns a
light on based on the state of an ELK resource.
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