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8-4. Table of Memory Areas
Data area
Index
modifier
Constant
Item
Name and function
Numbering
2.7 k type
5 k type
Symbol
112 words
DT9000 to DT9069
and
DT9080 to DT9121
One word each
(No numbering system)
16-bit constant (word):
K-32,768 to K32,767
32-bit constant (double word):
K-2,147,483,648 to
K2,147,483,647
16-bit constant (word):
H0 to HFFFF
32-bit constant (double word):
H0 to HFFFFFFFF
DT (word)
DT (word)
IX (word)
IY (word)
K
H
1,660 words
DT0
to
DT1659
6,144 words
DT0
to
DT6143
Data register
The data register is a memory area for data processed
within the programmable controllers and each data
register consists of 1 word (1 word = 16 bits).
Special data register
The special data register is a memory area that has
special applications. Refer to page 201, “8-7. Special
Data Registers” for details about the special data
register.
Index register
The index register can be used as an address and
constants modifier.
Decimal constants
Hexadecimal constants
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