Mitsubishi QJ71E71-100 Series, Руководство пользователя

Страница: 189 / 220

6 - 40 6 - 40
MELSEC-Q
6 DEDICATED INSTRUCTIONS
Functions
(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 an
MELSECNET/H, MELSECNET/10 or Ethernet network system.
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.
SEND
Channel 1
Channel n
Channel 8
(S2)
[Local station]
QCPU
Ethernet module
(S1)+2 RECV
(S2)
[Response station]
Ethernet
Q/QnACPU
Ethernet module
RECVS
(S1)+3
Channel 1
Channel n
Channel 8
(2) Data can be sent to stations connected to either the MELSECNET/H,
MELSECNET/10 or Ethernet networks having the designated 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
the SEND instruction is completed, and turns off at
the next END processing.