Omron CJ1W-C113 - REV 02-2008, Operation Manual

Page: 126 / 406

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Operating Data Area Section 4-6
User-specified DM/EM Area Words
If 000D (user-specified DM Area words) or 0X0E, where X = 0 to 9, A, B, or C
(user-specified EM Area words) is set for the common parameter used for the
operating data area designation (word m), the beginning word, l, of the operat-
ing data area will be determined by the setting of word m+1, which specifies
the beginning word of operating data area.
The operating data area is divided into an area for data that is output from the
CPU Unit to the PCU and an area for data that is input from the PCU to the
CPU Unit. The memory allocation of the operating data area is shown in the
following tables. For more details, refer to the section on the relevant function.
Operating Data Area
Common to All Axes
Example 1:
Example 2:
m 0 0 0 D
m+1 1 F 4 0 (1F40 Hex=8000)
I=D8000
m 0 2 0 E
m+2 3 A 9 8 (3A98 Hex=15000)
I=E2_15000
I/O Words Name Operation Reference
Output (CPU
Unit to PCU) I Operating data for
data transfer Number of
write words Specifies the number of words written
from the CPU Unit to the PCU. SECTION 5
Transferring
and Saving
Data
I+1 Write source
area Specifies the area containing the data
to be written from the CPU Unit to the
PCU.
I+2 Write source
word Specifies the beginning word of the
data to be written from the CPU Unit to
the PCU.
I+3 Write
destination
address Specifies the address in the PCU to
which the data is to be written.
I+4 Number of
read words Specifies the number of words to be
read from the PCU to the CPU Unit.
I+5 Read source
address Specifies the address in the PCU from
which the data is to be read.
l+6 Read
destination
area Specifies the area used to output the
data read from the PCU.
l+7 Read
destination
word Specifies the word used to output the
data read from the PCU.