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MELSEC-Q
3 SPECIFICATIONS
(2) OUTPUT area (Buffer memory address: 960 (3C0
H
) to 1919
(77F
H
))
Either the normal service mode (Mode 0) or extended service mode (Mode E)
can be selected using GX Configurator-DP.
(a) Normal service mode (MODE 0)
This is the area that stores the output data to the slave station.
This area is fixed to an allocation of 32 bytes (16 words) per station for a
total of 60 stations worth. This output area configuration is as follows.
Example : When the output data length for the first station is set to 1 bytes
and that for the second station to 3 bytes
960(3C0
H
)
975(3CF
H
)
976(3D0
H
)
991(3DF
H
)
1904(770
H
)
1919(77F
H
)
1st station output data
2nd station output data
n th station output data
60th station output data
1st station 1st byte
b15
b0
960(3C0
H
)
961(3C1
H
)
974(3CE
H
)
975(3CF
H
)
2nd station 2nd byte
2nd station 1st byte
2nd station 3rd byte
976(3D0
H
)
977(3D1
H
)
991(3DF
H
)
b15
b0
(Upper byte)
(Lower byte)
: Free area (00
H
)
1 Since the data area is fixed to 32 bytes,
all unused areas will become free.
1
Buffer memory
address decimal
(Hexadecimal)
Buffer memory
address decimal
(Hexadecimal)
1
