Instructions 
In SIMATIC WinCC V6.0 onwards you can define the path for the picture cache yourself. The settings for the picture cache are in the "Runtime" tab of the Computer Properties dialog. With the picture cache you can create your pictures locally on a client computer and thus increase performance.

Fig: 1 Configuring the picture cache

The standard folder for storing pictures in WinCC V6.0 is in the path   <"WinCC Installation Directory"/ bin/ PDLCache/"Server prefix">. 
Create a subfolder in the "PDLCache" folder using the server prefix of the server concerned in each case. Now you can manually copy your pictures from the server into this folder. 

Note
In WinCC V7.0 SP1 and V7.0 SP2 you must create the standard folder "PDLCache" yourself in the installation path <"WinCC Installations Directory"/ bin/ ">.

Please observe the following when creating a self-defined path for the picture cache:

• Your self-selected folder must also contain a "PDLCache" folder which in turn contains a folder with the name of the server prefix of the server. You can now copy your pictures into this folder. 
• The path specification in the dialog goes through to the folder before the directory "PDLCache". 
  Example: 
  Path to where the pictures are stored: <C:\WinCCProject\Pictures\PDLCache\Server_prefix>

Specification in the dialog: <C:\WinCCProject\Pictures>

The WinCC documentation contains a more detailed description of the picture cache in the section entitled "Picture Cache".