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3.
SPECIFICATIONS
MELSEC-A
(2) Buffer memory allocation
The buffer memory consists of 16-bit addresses. The buffer memory
has no back-up battery.
The buffer memory address names and values for each address are
listed in the following table.
Buffer memory addresses I OEH, 11
8H
t o 11 FH are reserved for system
use only. Data written to this area will prevent correct operation of the
AJ71 C24.
The following table shows the contents of the buffer memory allocation.
The memory areas which are used with the no-protocol mode or the bidirec-
tional mode are listed as those to be used with the no-protocol mode.
The memory areas function the same way in either mode. When the bidirec-
tional mode is required, see the following table, changing 'no-protocol" to
'bidirectional'.
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