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  • Rule Based or Logic Controls (Complex Controls) - Rule Based Logic Controls are used by InfoWater Pro to perform a given action during a hydraulic simulation when a user specified condition is met. However, unlike Simple Controls, rule  rule based controls allow for the creation of multiple conditions to be satisfied before an action is performed and allow for multiple action statements to be created for a single rule based control.  However, rule based controls are evaluated only after a simulation reaches convergence at time "i" and are then implemented at the start of the next simulation at time "i" plus the rule timestep.  Due to this delay, Rule based controls are not used in Steady State runs and only apply to Extended Period Simulation (EPS) model runs. The Rule Timestep should be set at no larger than 1/10th the current hydraulic timestep used for the analysis. Click here for more information on Complex Controls. Logic Controls need to be turned On prior to running your model through the InfoWater Pro Model Explorer -> Operation tab -> Simulation Options dialog box by checking the Rule Control command. InfoWater Pro will read the Complex Controls only when this option is checked.

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