Mitsubishi Electric Melsec Q Series User Manual page 210

6 DEDICATED INSTRUCTIONS
Functions
[Local station]
Programmable
controller CPU
(S2)
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(1) This instruction sends data stored in the devices designated with the local station's
(S2) to the station designated with the target station network number and target
station number in the control data. The target station must be connected to other
networks or Ethernet.
The sent data is stored in the channel set with the target station's (S2).
Use the RECV/RECVS instruction when reading the data sent on the target
station.
When data sending to the target station number is completed, the completion
device designated in (D) turns on.
Ethernet module
Channel 1
SEND (S1)+2
Channel n
Channel 8
(2) Data can be sent to stations connected to other networks or Ethernet having the
specified numbers, in addition to stations connected to the local station's network.
(3) The data link instruction and instructions for the Ethernet network system cannot
be executed at two or more locations for the same channel.
If the execution conditions are met at two or more locations at the same time,
instructions to be executed later have to wait until the channel becomes available
because handshaking is automatically performed at the execution of the first
instruction.
(4) Whether the SEND instruction is being executed or has been completed normally
or abnormally can be checked with the completion device (D2) or completion
status display flag ((D2) + 1) designated in the set data.
(a) Completion device (D2)
Turns on at the END processing of the scan where the SEND instruction is
completed, and turns off at the next END processing.
(b) Status display device at completion ((D2) + 1)
Turns on and off depending on the completion status of the SEND instruction.
Normal completion : Stays off and does not change.
Abnormal completion: Turns on at the END processing of the scan where
[Response station]
Programmable
controller CPU
(S2)
RECV
RECVS
Ethernet
the SEND instruction is completed, and turns off at
the next END processing.
MELSEC-Q/L
Ethernet module
Channel 1
(S1)+3
Channel n
Channel 8
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