Mitsubishi MELSEC-Q Series User Manual page 643

14
COMMUNICATIONS BETWEEN CPU MODULES
[Control details]
[Operation timing]
Sequence program
S(P).GINT instruction
Event notification
(C Controller module
user program)
SM391 (S(P).GINT instruction
execution completed flag)
On the leading edge (OFF to ON) of the S(P).GINT instruction execution command in
the sequence program, an interrupt is generated for the C Controller module.
When the interrupt is generated from the programmable controller CPU, the C
Controller module executes the processing of the bus interface function
(QBF_WaitEvent function) programmed in the user program.
(a) When programmable controller CPU has completed transmission of
instruction command to C Controller module
The SM391 (S(P).GINT instruction execution completed) flag of the
programmable controller CPU turns ON.
(b) When programmable controller CPU could not transmit instruction
command to C Controller module
The SM391 (S(P).GINT instruction execution completed) flag of the
programmable controller CPU turns OFF.
END
QBF_WaitEvent
function executed
User program in waiting status
OFF
Figure 14.4 Operation timing of S(P).GINT instruction
END
S(P).GINT instruction executed
ON
Interrupt notified
User program resumed
S(P).GINT instruction executed
S(P).GINT instruction not executed
14.2 Event Notification
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END END
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