Option 9.3. Region Attribute Counters

About this task

Region attribute counters are used to maintain a count of the number of times an item has been through a region. The counter is tied to a specific attribute that is either increased or decreased by increments as the item re-enters the region. You can keep track of region attribute counters using the PRT User Interface or on a graphic screen. By specifying an alarm value, you can enter a number that will generate an alarm to avoid over-processing an item.

Procedure

  1. Open a new PRT Region Attribute Configuration dialog box as follows:
    1. Expand the PRT folder in the Tracker Configuration left pane.
    2. Expand the Advanced folder.
    3. Double-click Region Attribute Counters.

    A list box displays in the right pane.

    1. Click in the right pane.

    A new PRT Region Attribute Configuration dialog box opens for configuration.

  2. Configure the PRT region attribute counters, as follows:
    Field Description
    Region Region in which you want to maintain a count by attribute.
    Attribute Attribute that will have a counter in the region.
    Start Byte First byte of the attribute value that will be used for the counter in the region. Reminder: Attributes have a maximum of 16 bytes.
    End Byte Last byte of the attribute value that will be used for the counter in the region.
    Operation Code Check one of the following:
    Increment Increase the counter by one whenever an item enters the region containing this attribute.
    Decrement Decrease the counter by one whenever an item enters the region containing this attribute.
    Preset Value is preset. Note: If using Preset, configure an additional counter to either increase or decrease by  increments the value for alarming purposes.
    Alarm Value (Integer) An alarm will be generated when the counter reaches this value.
  3. Click OK.

Results

The region attribute counter configuration is added to your Tracking Model.