Technical data

Downloading and Uploading
19.1 Downloading from the PG/PC to the Programmable Controller
Programming with STEP 7
Manual, 05/2010, A5E02789666-01 419
CPU Work Memory
The work memory (integrated RAM) is used to store the parts of the user program required for
program processing.
Possible Downloading/Uploading Procedures
• You use the download function to download the user program or loadable objects (for example,
blocks) to the programmable controller. If a block already exists in the RAM of the CPU, you
will be prompted to confirm whether or not the block should be overwritten.
• You can select the loadable objects in the project window and download them from the
SIMATIC Manager (menu command: PLC > Download).
• When programming blocks and when configuring hardware and networks you can directly
download the object you were currently editing using the menu in the main window of the
application you are working with (menu command: PLC > Download).
• Another possibility is to open an online window with a view of the programmable controller (for
example, using View > Online or PLC > Display Accessible Nodes) and copy the object you
want to download to the online window.
Alternatively you can upload the current contents of blocks from the RAM load memory of the CPU
to your programming device via the load function.