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MELSEC-Q
6 PROGRAMMING
6.3 Link Dedicated Instruction List
The following table outlines the instructions that can be used for the MELSECNET/H.
For details of the format and program examples of each instruction, refer to the
applicable section listed in the Reference section column.
Link dedicated instruction list
Instruction
Name Description Target station
Reference
section
SEND Send data
SEND : Writes data to the target station (network module)
having the target network number.
1
• QCPU
• RCPU
• LCPU
• QnACPU
• PC interface board
3
Section 7.4.5 (1)
RECV : Reads data sent with SEND to the CPU device.
1
RECV Receive data
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)
• QCPU
• RCPU
READ
SREAD
Read word
device from
other station
Reads the CPU device data (16-bit units) from the target
station having the target network number.
CPU CPU
Word device
2594
READ
Word device
2594
Network module
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Channel 8
Network module
• QCPU
• RCPU
• LCPU
• QnACPU
• Safety CPU
Section 7.4.5 (2)
WRITE
SWRITE
Write word
device to
other station
Writes data (16-bit units) to the CPU device of the target
station having the target network number.
2
(SWRITE can turn on the device of the target station.)
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
• QCPU
• RCPU
• LCPU
• QnACPU
Section 7.4.5 (2)
1: Cannot be used if the executing station or target station is a safety CPU.
2: Writing to a safety CPU is not allowed from other stations.
3: Can access a PC interface board with the SEND/RECV functions.
• MELSECNET/H interface board
• MELSECNET/10 interface board
• CC-Link IE Controller Network interface board
• CC-Link IE Field Network interface board