Service and maintenance of SIMATIC PDM   
6.6 Replacing/removing field devices 
  Compendium Part D - Operation and Maintenance (V9.0) 
70  Operating Manual, 02/2018, A5E43228948-AA 
In this example, a Siemens SITRANS LR250 level radar is replaced with a Siemens 
SITRANS LR260 level radar.  
1.  In HW Config, select "Object Properties" from the shortcut menu of the LR250. 
2.  Back up all project-specific information and settings from the "General" and "Assign 
Parameters" tabs. You will need this information for configuring and assigning parameters 
for the new device type. 
3.  Make a backup of the symbol table (E address). 
4.  Switch to the process device plant view to back up the LR250 parameter set. 
SIMATIC PDM opens. 
5.  Select the device "LR250_Compend" and select "Export..." in the shortcut menu. 
The export dialog is opened. Using the export dialog, you can back up the device 
parameters and diagnostics and document manager information.