Mitsubishi Electric MELSEC Q Series User Manual page 271

Receiving side program (CPU No.2)
CHAPTER 14 FUNCTIONS USED BY MULTIPLE CPU SYSTEM
Processing flow
(The numbers from 1) through 8)
represent the execution sequence.))
3) Transmitted data set complete bit ON is
detected.
4) Received data processing is performed.
5) Received data complete bit ON is written into
the user setting area.
The multiple CPU high speed transmission
area data in the No.2 module are automatically
transmitted to the No.1 module.
7) Transmitted data set complete bit OFF is
detected.
8) Data processing complete bit OFF is written
into the user setting area.
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