Specifications

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2) If an address within the link refresh range is designated, the data is written
when the instruction is executed. However, the link device of the network
module is overwritten with the link device data of the CPU by the link
refresh.
Make sure to write the same data to the link device of the CPU
simultaneously when writing by direct access. (Same for B, Y, SB and
SW.)
CPU
20 300
LW
Network module
100
300
W
100
MOV K20 J1\W100
Link refresh
CPU
20
LW
Network module
100
20
W
100
MOV K20 J1\W100
MOV K20 W100
Link refresh