Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 182

5 PARAMETER SETTINGS
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2) When B/W points set in [Device] under [PLC parameter] are less
than 8K points (less than 6K points when three modules are mounted)
Link devices equivalent to the B/W points set in [Device] are assigned,
up to the following points for each module.
No. of modules
1
2
3
4
Example: When B/W points set in [Device] are 5K points
Installation
location
CPU
Number
of installation
B/W
0
5120
to
points
1 Module
13FF
B/W
0
4096
to
points
2 Modules
FFF
1000
to 1024 points
13FF
B/W
0
2048
to
points
7FF
800
2048
to
points
3 Modules
FFF
1000
1024 points
to
13FF
B/W
0
2048
to
points
7FF
800
2048
to
points
4 Modules
FFF
1000
1024 points
to
13FF
Maximum points assignable per module
B/W points set in [Device]
4K points
2K points
Module 1 Module 2
LB/LW
0
to
13FF
3FFF
LB/LW LB/LW
0
to
FFF
3FFF
3FFF
LB/LW LB/LW
0
to
7FF
3FFF 3FFF
LB/LW LB/LW
0 0
to to
7FF 7FF
3FFF 3FFF
MELSEC-Q
Module 3
0
to
3FF
LB/LW
0 0
to
to
3FF
7FF
3FFF
LB/LW
0
to
3FF
3FFF
Module 4
LB/LW
0
3FFF
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