Справочник Пользователя для Mitsubishi Electronics 00UCPU

166

This function executes interrupt programs (multiple CPU synchronous interrupt programs) at the start timing of each 
multiple CPU high speed transmission cycle. The function enables data communications among CPU modules in 
synchronization with the multiple CPU high speed transmission cycles.
Since the multiple CPU high speed transmission cycles are synchronized with the Motion CPU operation cycles, use of 
the function enables faster responses to the requests from a Motion CPU and sequence program execution 
synchronized with the Motion CPU operation cycles.

Multiple CPU synchronous interrupt program is a program using an interrupt pointer (I45). A sequence of 
instructions from an interrupt pointer (I45) to the IRET instruction is a multiple CPU synchronous interrupt 
program.
To execute multiple CPU synchronous interrupt programs, enable the execution of interrupt programs using the 

EI instruction.

*1*2

*1

The setting is not required on the Motion CPU side.

*2

Register the routine corresponding to the multiple CPU synchronous interrupt using the bus interface function of the C 

Controller module. (

Manual for the C Controller module used)

Multiple CPU synchronous interrupt programs are executed at the start timing of each multiple CPU high speed 
transmission cycle.

Multiple CPU high speed
transmission

Interrupt request

Program

Multiple CPU synchronous
interrupt program

0.88ms

I45 IRET

END 0

I45 IRET

END

I45 IRET

0

I45 IRET

END 0

I45 IRET

Multiple CPU high speed transmission cycle