Mitsubishi Electric Artisan MELSEC-Q Series Manual page 176

9.2 Create a sample program for MELSECNET(ΙΙ) or MELSECNET/B link refresh using A/QnA -> Q conversion support tool
2) MELSECNET ΙΙ composite mode (Network range assignment: set for the first half and second half)
(c) Program example of transient instruction
Transient communication is being performed if the following instructions are in the master station's
sequence program.
The use of transient communication is one of the conditions that should be taken into account when
creating a link refresh sequence program.
X0 M9200
Read from
other station instruction
received
X1 M9200
Write to
other station instruction
received
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M9201 M9202
LRDP LRDP LWTP
instruction instruction
completed received
M9201 M9202
LRDP LRDP LWTP
instruction instruction
completed received
M9202
LRDP K1 D0
Other station
LWTP
read device
instruction
completed
M9202
LWTP K1 D20
LWTP
instruction
completed
173
D100 K10
Read data
storage
D300 K10
Other station
write destination
device