Setting The Home Directory For The Runtime System; Load Boot Project - WAGO 750-8215 Manual

74 Function Description
4.2.5

Setting the Home Directory for the Runtime System

The home directory for the runtime system is located in the controller's internal
memory by default. An existing boot project may be saved in the home directory.
You can use the WBM to move the home directory for the runtime system to the
memory card, e.g., to make more memory available for a large boot project or
other files.
Some conditions must be met before moving the directory.
•
A running IEC-61131 application must be stopped and the device restored
to its initial state using the "Reset" function. Any boot project is deleted.
•
When moving the home directory to the memory card, insert a memory
card formatted to support file system. Only the first partition of a memory
card can be accessed at /media/sd and can be used as the home directory.
Only when the two conditions are met can the "Home directory on memory card
enabled" checkbox be selected from the WBM on the "PLC Runtime" page.
Press the [Submit] button to apply the settings, which take effect after the next
restart.
No files are applied from the old to the new home directory.
After moving the directory, a project must be loaded and a boot project created.
It should be noted that the memory card may not be removed under any
circumstances as long as the home directory is there. If an application is running,
system safety can be endangered by an uncontrolled controller crash.
Switching the home directory has no effect if the controller was botted from a
memory card. The configuration state is saved, but only takes effect if the content
of the memory card is copied to the internal memory.
4.2.6

Load Boot Project

If a boot project exists, it may be loaded, depending on the home directory setting
for the runtime system. The following table shows the possible results:
Manual
Version 1.2.0, valid from FW Version 03.02.02(14)
WAGO-I/O-SYSTEM 750
750-8215 PFC200; G2; 4ETH CAN USB