Understand how Deadband is used when evaluating the result in ALP

Deadband is used to evaluate the Result as follows:

• When the comparison X < Y evaluates to Yes, it remains as Yes as long as X < (Y + deadband).

  For example, if analog.XAnalog.curval < 60 with a Deadband of 5, then the following is true:

  

  As the analog value decrements and moves towards 60, the comparison evaluates to No. When the analog value falls below 60, the comparison evaluates to Yes. If the analog value goes back to 60 and above, it will continue to evaluate to Yes until it hits 65 (60 + 5). When the analog value reaches 65, it evaluates to No and continues to do so until the analog value falls below 60.

• When the comparison A > B evaluates to Yes, it remains as Yes as long as A > (B - deadband).

  For example, if analog.XAnalog.curval > 60 with a Deadband of 5, then the following is true:

  

  As the analog value increments and moves towards 60, the comparison evaluates to No. When the analog value goes above 60, the comparison evaluates to Yes. If the analog value goes back to 60 and below, it will continue to evaluate to Yes until it hits 55 (60 - 5). When the analog value reaches 55, it evaluates to No and continues to do so until the analog value goes above 60.

  Note: You cannot enter a value in the Deadband field if equal (=) is selected in the Operator field. A positive value must be entered in the Deadband field. The default value of zero (0) in the Deadband field means that no deadband is applied.