Each asynchronous validation decision has two additional fields: Validation point and Default validationvalue.
Procedure
The Validation Point must be set to the Validation value in order for the decision to be considered complete.
RCO will continue to execute control cycles while waiting for validation to occur.
When the logic module has selected a decision, the
Output modules will run and
Decision will appear in the RCO_UI as Pending.
If the decision has a Validation Point configured:
The site will wait for the validation, and process any additional triggers.
The decision waiting for validation will be marked as InProcess until the Verification.
RCO maintains a history of the last 32 decisions.
When a new decision is made, it is added to the decision history.
When the maximum number of configured decisions is exceeded, the oldest decision is removed from the list.
RCO triggers an alarm if a decision is removed and was not validated.
Once a decision has been removed from the list, it is considered canceled.
When Async Validation is configured for a decision and the default value is specified in the Decisions dialog box or in the Output Module via the Set Asynch Validation Value function block, the decision status reads, InProcess.
When RCO receives a Point update whose value is equal to the configured Validation Point, the decision is then marked 'Completed'.