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REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK)
4
(3) Q series dedicated link instruction list
The table below shows the dedicated link instructions usable in Q series.
For instruction format of dedicated link instruction and precautions, refer to the following manual.
• Q corresponding MELSECNET/H Network System Reference Manual (PLC to PLC network)
: Can be used by both the control and normal stations, × : Cannot be used
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Instruction Name
Execution
station
Description
Target station
QCPU QCPU
QnA/
QnAS
CPU
AnU/
AnUS(H)
CPU
SEND Data sending
SEND:Writes data to the target station (network module)
having the target network number.
RECV:Reads data sent with SEND to the CPU device.
×
RECV
Data
receiving
×
READ
SREAD
Other station
word device
read
Reads the CPU device data (in 16-bit units) from the target
station having the target network number.
×
WRITE
SWRITE
Other station
word device
write
Writes data (in 16-bit units) to the CPU device of the target
station having the target network number.
(SWRITE can turn on the device of the target station.)
×
REQ
Requesting
transient
transmission
to other
stations
Issues "remote RUN" and "clock data read/write" requests to
other stations.
×
CPU Network module CPUNetwork module
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Channel 8
SEND
RECV
Logical channel 1 (channel 1)
Logical channel 2 (channel 2)
Logical channel 3 (channel 3)
Logical channel 4 (channel 4)
Logical channel 5 (channel 5)
Logical channel 6 (channel 6)
Logical channel 7 (channel 7)
Logical channel 8 (channel 8)
CPU CPU
Word device
25 94
READ
Word device
2594
Network module
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Channel 8
Network module
WRITE
CPU
CPU
361
Network module
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Channel 8
Network module
Word device
CPU Network module CPUNetwork module
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Channel 8
STOP
REQ
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