User manual
IEC61131 User and Reference Manual 
April 22, 2008     
507 
Select the Edit button to modify the selected row in the Address Mapping. Selecting the Edit button 
opens the Add/Edit Address Mapping dialog containing the data from the selected row. This button 
is disabled if more than one row is selected. This button is disabled if there are no entries in the table. 
The Delete button removes the selected rows from the table. This button is disabled if there are no 
entries in the table. 
The Allow Duplicate Modbus Addresses checkbox determines if the Modbus I/O database 
addresses assigned to the DNP data points must be unique. Check this box if you want to allow more 
than one point to use the same Modbus address. 
Click on the column headings to sort the data. Clicking once sorts the data in ascending order. 
Clicking again sorts the data in descending order. 










