Mitsubishi Electric MELSEC Q Series Reference Manual page 79

(1) 32-bit data assurance
When "Network Range Assignment" of the control station is set with the following four conditions met, 32-bit data
integrity is automatically assured.
• The start device No. of LB is a multiple of 20
• The points assigned per station in LB is a multiple of 20
• The start device No. of LW is a multiple of 2.
• The points assigned per station in LW is a multiple of 2.
(a) Link refresh
Link-refreshing the link devices that satisfy the conditions for 32-bit data assurance will ensure the integrity of
32-bit data.
CPU module
Link register (W)
Station
No.1
Station
No.2
Station
No.3
For assuring data of more than 32 bits, use the station-based block data assurance or interlock programs.
.
H
H
CC-Link IE Controller
Network module
Link register (LW)
32-bit
data 1
32-bit
data 2
Link refresh Link refresh
32-bit
data 3
CHAPTER 4 FUNCTIONS
.
LW0
Link refresh in 32-bit units
Link refresh
LW1
LW2
LW3
LW6
LW7
4
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