Siemens SIMATIC VPU200/560 Programming Manual page 119

Function 90: Load All without IR, loads Ladder Memory, V-Memory,
K-Memory, Scan Time, I/O Configuration for all bases and channels, and
Memory Configuration. It does not load Word I/O, Forced Word I/O, Discrete
I/O, nor Forced Discrete I/O.
Function 98: Load Forced IR, loads Forced Word I/O (WX, WY) and Forced
Discrete I/O (X Y, C).
Function 99: Load Word I/O loads both Forced and Unforced Word I/O
(WX, WY).
NOTE: To load or save a specific memory type (V-, K-, etc.), the memory
configuration in the P/C and on the disk must be identical. Load All without
IR (Function 90) will copy the memory configuration from the disk to the
P/C. Save all (Function 60) will copy the memory configuration from the P/C
to the disk.
SIMATIC VPU200/560 Programming Manual Using VPU200 Support Functions 9-15