Omron CJ2 - 02-2010 User Manual page 184

5 Understanding Programming
! Caution
Program so that the memory area of the start address is not exceeded when a symbol or
address is used to specify the offset directly in a ladder program.
If an indirect specification causes the address to exceed the memory area of the start
address, the system will access data in the next area, and unexpected operation may occur.
5-94 CJ2 CPU Unit Software User's Manual