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8. COMMUNICATIONS USING DEDICATED PROTOCOLS
MELSEC-A
8.12.3 Parameter memory readlwrite
(1)
Commands and addresses
(a) ACPU common commands
Batch
read
-
Batch
write
-
Analysis
request
-
Symbol
Note : o
.......
Executable
.......
x
Unavailable
(b) Parameter addresses
OOBFFH. For addresses', use 5-digit A S C I ~ (hexadecimal)
There are
3K
bvtes of Darameter memorv. addresses O O O O O H to
4
After changing parameters, always call the parameter analysis request
command (PS).
If this is not done, the parameters in PC CPU user memory will be changed
but the parameters stored in the work area by the ACPU for operation will
remain unchanged.
Therefore, if a peripheral device is loaded and
operated after the parameters are changed, processing will be executed
with the previous parameters, which are still stored i n the work area.
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