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3 SPECIFICATIONS
3 - 24
(b)
In a sequence program, data are read from or written to common memory
using the FROM/TO command.
Program example
The following shows a program where values in D0 to D9 are written
into the common memory area addressed 0C00
multitask execution start signal (X0B) is ON.
To write data from the programmable controller CPU to the common
memory or to read data from the common memory, use the multitask
execution start signal (X0B) as an interlock.
Write
Command X0B
Sequence
Program
(1-word units)
(2) Common Memory Capacity
In the QD51 (-R24), the size of common memory is 8 k bytes
(3) Common Memory Configuration
One address in common memory has a 1-byte (8 bits) configuration. The entire
area can be used as desired by the user.
Interlock that enables or disables FROM/TO execution.
C00
H
C01
H
TO
to
(Writing of data)
C08
H
C09
H
MELSEC-Q
to 0C09
H
T0 H0 H0C00 D0 K10
QD51(-R24)
Common Memory
1800
H
1801
H
1802
H
1803
H
to
1810
H
1811
H
1812
H
1813
H
when the
H
3 - 24
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