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.
Deadband intervals
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
  • Default deadband mode
    =
    Absolute
  • User-specified
    Default deadband value
Percentage of change from the previous sample is equal to or greater than a specific value
  • Default deadband mode
    =
    Percentage
  • User-specified
    Default deadband value
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