Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 118)

Memory Organization
Chapter 7
7-12
Examining the Memory
If you want to examine the memory layout:
SEARCH The word SEARCH appears in the lower left hand corner of the screen.
54
Memory Layout Display
MiniĆPLCĆ2/16 MiniĆPLCĆ2/17
Data Table Size
128 words
User Program Area
0001 words
User Message Area
0000 words
Unused Memory
Available
3967 words
Data Table Size
128 words
User Program Area
0001 words
User Message Area
0000 words
Unused Memory
Available
7807 words
MiniĆPLCĆ2/02
Data Table Size
128 words
User Program Area
0001 words
User Message Area
0000 words
Unused Memory
Available
1919 words
This illustrates the memory layout display for a 128 word data table.
Even if there are no messages or programs in the memory, the END
statement is there and it requires one word. Adding the number of words
in the four areas equals the memory size (decimal).