Mitsubishi Electric MELSEC Q Series User Manual page 272

(2) In case of C Controller module  C Controller module
(a) Processing overview
C Controller module No.1
CPU shared memory
Host CPU operation information area
System area
Auto refresh area
Data written by QBF_ToBuf function
of C Controller module No.1
(User setting area)
1)
User program
Execution of QBF_ToBuf function
Execution of QBF_FromBuf function
At bus interface function execution of C
Processing
Execution of the bus interface function (QBF_ToBuf)
1) writes the data to the user setting area in the CPU
shared memory of C Controller module No.1.
2)
3)
Execution of the bus interface function (QBF_ToBuf)
4) reads out the user setting area data of C Controller
module No.2 onto the user program.
270
3)
4)
Controller module No.1
–
–
C Controller module No.2
CPU shared memory
Host CPU operation information area
System area
Auto refresh area
Data written by QBF_ToBuf function
of C Controller module No.2
(User setting area)
User program
Execution of QBF_ToBuf function
Execution of QBF_FromBuf function
At bus interface function execution of C
Controller module No.2
–
Execution of the bus interface function (QBF_ToBuf) writes
the data to the user setting area in the CPU shared memory
of C Controller module No.2.
Execution of the bus interface function (QBF_FromBuf)
reads out the user setting area data of C Controller module
No.1 onto the user program.
–
2)