Deadband interval properties
The deadband properties allow sampling variables with respect to their previous sampled value. The deadband helps prevent sampling values in rapid succession due to oscillation in the control system.
Property | Value | Description |
|---|---|---|
Default deadband mode | None | Samples the variable when the value of the variable changes by any amount. |
Absolute | Samples the variable when the value of the variable changes by an amount equal to or greater than the absolute deadband value. For example, if the variable value is 3 and the deadband value is 1, the variable is sampled when variable value is 4 or greater. | |
percent | Samples the variable when the value of the variable changes by an amount equal to or greater than the % deadband value. For example, if the variable value is 10 and the deadband value is 20, the variable is sampled when the variable value is 12 or greater | |
Default deadband value | Free choice | Determines the deadband value. |
To sample variables whose values have changed... | Then set... | |
|---|---|---|
Any change from the previous sample | Default deadband mode = None | |
Absolute value of change from the previous sample is equal to or greater than a specific value |
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Percentage of change from the previous sample is equal to or greater than a specific value |
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