Mitsubishi Electric MELSEC-Q Series User Manual page 191

(2) Functions
(a) Operation chart of the G(P).RIRCV instruction
Master station
CPU module
1.
Command
G(P).RIRCV
Device
5.
1.
Reading of data from the buffer memory specified by (S1) + 2 and (S1) + 3 of the station specified
by (S1) + 1 is commanded.
2.
The master station monitors the remote input (RX) specified by (S2) + 1.
3.
When the remote input (RX) specified by (S2) + 1 turns on, the master station reads data from the
buffer memory of the target station.
The read data is stored in the receive buffer of the master station.
4.
The master station turns on the remote output (RY) specified by (S2) + 0.
When the remote input (RX) specified by (S2) + 1 turns off, the remote output (RY) specified by (S2)
+ 0 is turned off.
5.
The data read from the target station are stored in the device specified by (D1) and subsequent
devices, and the device specified by (D2) turns on.
(b) Simultaneous execution of the G(P).RIRCV instruction
The G(P).RIRCV instruction can be simultaneously executed to multiple intelligent device stations.
But concurrent execution of the instruction is not allowed to the same station. (including other dedicated
instructions)
If the dedicated instruction is executed before the completion of the former dedicated instruction, the latter
instruction is ignored.
Because several scans are required to complete the process of the dedicated instruction, create a program so
that the next dedicated instruction is executed after Completion device (D2) turns on.
Target station
Master station
2.
RX
4.
RY
3.
Receive buffer
CHAPTER 9 DEDICATED INSTRUCTIONS
Intelligent device station
RX
RY
Buffer memory
9
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