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MELSEC-Q
6 DEDICATED INSTRUCTIONS
6.5 RECV Instruction (for the Main Program)
This instruction reads received data.
Applicable device
Internal device
MELSECNET/H,
MELSECNET/10
Direct J
\
Set
data
Bit Word
File register
Bit Word
Special module
U
\G
Index register Zn
Constant
K, H
Others
(S) — —
(D1) — —
(D2) —
JP.RECV
Jn
GP.RECV
RECV
Un
(D1) (D2)(S)
RECV
(D1) (D2)(S)
Command
Command
[Instruction
symbol]
[Executing
condition]
Set data
Set data Description Set by Data type
Jn
Network No. of the local station (1 to 239, 254)
254: The network designated by the valid module during other station
access.
Binary 16 bits
Un
Start I/O signal of the local station's Ethernet net module.
(00 to FE: The higher 2 digits of the 3-digit I/O signal.)
User
Character string
(S) Head device of the local station that stores the control data. User, system
(D1) Head device of the local station that stores the reception.
Device name
(D2)
Local station device that is turned on for one scan by the completion of
the instruction.
(D2) + 1 is turned on if the instruction execution completes abnormally.
System
Bit
The local devices and the file register for each program cannot be used as devices
used in setting data.
POINT
The RECV instruction can be executed only when the local station is a Q/QnACPU.
REMARK
The number of steps for the RECV instruction is 8.
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