Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 794

Table Data Processing Instructions
Variations
Applicable Program Areas
Operands
Operand Specifications
754
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification
Block program areas
OK OK
TB through TB+3: Stack control words
The first four words of the stack contain the PLC memory address of the last
word in the stack and the stack pointer (the PLC memory address of the next
available word in the stack.)
15
TB
15
TB+1
15
TB+2
15
TB+3
TB+4 through TB+(N–1): Data storage region
The remainder of the stack is used to store data.
TB+(N–1)
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
Step program areas Subroutines
OK
0
PLC memory address of the last
word in the stack (rightmost 4 digits)
0
PLC memory address of the last
word in the stack (leftmost 4 digits)
0
Stack pointer (rightmost 4 digits)
(Initial value is the rightmost 4 digits of
the PLC memory address for TB+4.)
0
Stack pointer (leftmost 4 digits)
(Initial value is the leftmost 4 digits of
the PLC memory address for TB+4.)
15
TB+4 Data storage region
TB
CIO 0000 to CIO 6143
W000 to W511
H000 to H511
A448 to A959 A000 to A959
T0000 to T4095
C0000 to C4095
D00000 to D32767
E00000 to E32767
Section 3-17
SDEL(642)
@SDEL(642)
Not supported.
Interrupt tasks
OK
0
C D
A448 to A959