How To Set The Refresh Parameters - Mitsubishi Electric Melsec QJ71LP21 Reference Manual

5 PARAMETER SETTINGS

5.7.2 How to set the refresh parameters

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(1) Automatic setting with the Default button
(a) High Performance model QCPU, Process CPU, Redundant
CPU, and Universal model QCPU
1) When B/W points set in [Device] under [PLC parameter] are 8K points
or more (6K points or more when three modules are mounted)
Link devices are assigned as shown below.
Installation
location
CPU
Number
of installation
B/W
0
to
8192
points
1 Module
1FFF
B/W
0
4096
to
points
FFF
1000
2 Modules
4096
to
points
1FFF
B/W
0
2048
to
points
7FF
800
2048
to
points
FFF
1000
2048
3 Modules to
points
17FF
1800
to
1FFF
B/W
0
2048
to
points
7FF
800
2048
to
points
FFF
1000
2048
4 Modules to
points
17FF
1800
2048
to
points
1FFF
Module 1 Module 2
LB/LW
0
to
1FFF
to
3FFF
LB/LW LB/LW
0
0
to to
FFF
FFF
3FFF 3FFF
LB/LW LB/LW
0
0
to
to
7FF
7FF
3FFF 3FFF
LB/LW LB/LW
0
0
to
to
7FF
7FF
3FFF 3FFF
MELSEC-Q
Module 3 Module 4
LB/LW
0
to
7FF
3FFF
LB/LW LB/LW
0 0
to to
7FF 7FF
3FFF 3FFF
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