Allen-Bradley · Logix 5000 Controllers
An overflow occurred during the evaluation of a subscript expression. This condition generates a Major Recoverable Fault, indicating that an out-of-range condition exists within the expression's calculation. It may also be recorded as a minor overflow fault if enabled. Calculation of subscript expressions no longer silently produces invalid results, making this fault detection more predictable.
Click steps to track your progress.
Review all subscript expressions in the application program for potential overflow conditions
Identify specific expressions that could produce an overflow result, such as division by zero
Modify the logic of affected subscript expressions to prevent overflow conditions (e.g., add range checks, adjust data types)
Update any major fault recovery logic in the application to appropriately handle this Major Recoverable Fault