
APPENDIX
MELSEC-A
A-6
(e) Buffer memory
As compared to the AJ71PB92, the following buffer memory areas have been added or
modified to the A(1S)J71PB92D.
Buffer Memory Address
(Decimal/hexadecimal)
Addition/Modification
Explanation
0 / 0h
959 / 3BFh
Modification
Input area
In the A(1S)J71PB92D, the layout of the input areas of the slave stations
changes depending on the received data length in the extended service mode
only. In the normal service mode, the layout of the input areas is the same as
that of the AJ71PB92.
960 / 3C0h
1919 / 77Fh
Modification
Output area
In the A(1S)J71PB92D, the layout of the output areas of the slave stations
changes depending on the sent data length in the extended service mode
only. In the normal service mode, the layout of the output areas is the same
as that of the AJ71PB92.
2081 / 821h
Addition
Global control area
2084 / 824h
Addition
Trouble no information time setting area
2096 / 830h
2110 / 83Eh
Addition
Expansion communication trouble area
2112 / 840h
2116 / 844h
Addition
Slave status area
2128 / 850h
2247 / 8C7h
Addition
Input/Output start address area (Extended service mode only)
2254 / 8CEh
Addition
Current operation mode
2255 / 8CFh
Addition
Operation mode change request area
2256 / 8D0h
Addition
Operation mode change result area