Operating the Controller - CPU 41x-2 PCI
Windows Automation Center, WinAC Slot Version 4.0
70
Hardware Installation and Operating Manual, Edition 02/2006, A5E00273194-02
4.7
Archiving and Restoring STEP 7 User Programs
The Archive from CPU command enables you to save the configuration and STEP
7 user program to an archive file (*.wld). The archive file allows you to easily
restore the configuration and STEP 7 user program for the controller.
You can only archive or restore (Restore to CPU command) a STEP 7 user
program when the controller is in STOP mode. You cannot archive or restore a
STEP 7 user program when the controller is in RUN mode or is shut down.
The archive file functions like the removable memory cartridge (EEPROM
cartridge) of an S7 CPU; however, it differs in that the controller does not
automatically restore the archive file after a memory reset (MRES). You must
manually restore the archive file.
Automatic Restart with Autoload Feature:
You can also configure the CPU 41x-
2 PCI to load a specific archive file (*.wld) after restart. For this option, you must
enable the "Autoload" feature and specify which archive file to load after restart.
4.7.1
Creating an Archive File
An Archive file stores the current STEP 7 user program, the current system
configuration, and the current values of the DBs. The Archive file does
not
store
the configuration of the PC station.
To create an Archive file, select the
File > Archive
menu command. This
command displays the Save As dialog, which allows you to give a name to the file.
The controller then creates the archive file with the extension .wld.
You can also use the SIMATIC Manager of STEP 7 to create an Archive file. Select
the
File > Memory Card File > New
menu command.
4.7.2
Restoring an Archive File
When you restore an archive file, you reload the STEP 7 user program and the
configuration for the controller. You can only restore archive files of extension .wld.
Before you can restore an archive file, you must set the controller to STOP mode.
Use the following procedure to load an archived configuration and STEP 7 user
program:
1. Click the STOP button to place the controller in STOP mode.
2. Select
the
File > Restore to CPU
menu command.
3. Select the specific archive file to restore and click OK.
