kitControl-LeadLagRuntime

This component provides lead-lag control of from two to 10 BooleanWritables based upon their accumulated runtimes (elapsed active time). This object balances the active runtime of each of the devices. Only one of the controlled devices is active at a time based on runtime

LeadLagRuntime is available in the HVAC folder of the kitControl palette, along with a similar LeadLagCycles object.

Figure 57. LeadLagRuntime properties

Property	Value	Description
Facets	Config Facets window	Defines text to display for each Boolean value. `trueText` configures the text to describe the state when the component returns `true.` `falseText` configures the text to describe the state when the component returns `false.`
In	status Boolean input: `true` or `false` (default) and null definition	Configures a control device to be on or off. `true` indicates that one of the outputs is active based on the cycle count of each controlled device. When null is checked, the value displayed defaults to the incoming value from the device.If you remove the check mark you can configure the `In` value.
Number Outputs	number from 1–10 (defaults to 2)	Specifies the number of devices (outputs) to control.
Max Runtime	hours, minutes, seconds (defaults to six minutes)	Specifies the maximum amount of time a given output is active (its `In` property is set to `true`) before switching to another output.
Feedback	status Boolean input: `true` or `false` (default) and null definition	Provides positive feedback that a controlled device actually started. If the feedback value does not show `true` within the `Feedback Delay` time, the current controlled output generates an alarm, and the component switches to the next controlled output. Setting this value to `true` without linking disables this alarm feature.
Feedback Delay	hours, minutes, seconds (defaults to 5 seconds)	Specifies the delay time used to evaluate the feedback link (if any).
Clear alarm time	hours, minutes, seconds	It clears alarm time.
Out A-J	read-only StatusBoolean outputs: `true` or `false` (default)	Each typically links to a BooleanWritable control point with a DiscreteTotalizerExt. Outputs usually control loads of some type, such as two or more pumps.
Cycle Count A-J	RelTime inputs	These inputs provide runtime feedback for the corresponding `Out A - J` properties. They typically link to the `ElapsedActiveTime` property of the DiscreteTotalizerExt that is measuring the runtime of the corresponding Out A - J properties.

kitControl-LeadLagRuntime

Figure 57. LeadLagRuntime properties

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