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8.
COMMUNICATIONS USING DEDICATED PROTOCOLS
MELSEC-A
8.1 2.3
Parameter memory readlwrite
(1)
Commands and addresses
(a) ACPU common commands
Note
: o
........
Executable
........
x
Unavailable
(b) Parameter addresses
There are 3K bytes of parameter memory, addresses OOOOOH to
OOBFFH. For addresses, use 5-digit A S C I ~ (hexadecimal)
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 in the
1
work area.
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