The sampling of the measures is carried out only when the value specified in the Item Item Trigger field passes from the value 0 (zero) to a value other than 0 (zero).


 

For this type of activation it is also possible to set a Confirmation Item (Item Confirmation field) which is set to 1 by the system after sampling the group quantities.

 

Note: The Invert field is available for both the Trigger Item and the Confirmation Item:


    1. if the Invert of the Trigger Item field is selected, sampling begins when the value of the Item changes from a value other than 0 (zero) to 0 (zero).
    2. if the Invert confirmation item field is selected, the system sets the confirmation item value to 0 after the sampling of the quantities.