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CHAPTER 6 COMMUNICATIONS AMONG CPU MODULES
6
6.1 Communications Using the CPU Shared Memory
6.1.2 Communications by auto refresh (using the multiple CPU high speed transmission area)
If "Start" and "End" fields are left blank in "Auto Refresh Setting", auto refresh is not performed. (Only the receive area can
be left blank.)
Ex.
When the auto refresh setting of CPU No.2 is left blank in "Flow of data sent from CPU No.3 to other CPU
modules" described on Page 146, Section 6.1.2 (4) (d)
CPU No.2 does not auto-refresh the data received from CPU No.3 to W40 to W5F.
For the flow of sending data from CPU No.3, refer to "Flow of sending data from CPU No.3 to other CPUs" on Page 146,
Section 6.1.2 (4) (d).
(g) Receive device setting (CPU No.3) (h) Receive device setting (CPU No.3) (i) Send device setting (CPU No.3)
(1) Auto refresh setting of CPU No.1 (2) Auto refresh setting of CPU No.2 (3) Auto refresh setting of CPU No.3
CPU No.1
Multiple CPU high speed transmission area
CPU No.1
CPU No.2
CPU No.3
User setting areaUser setting area
User setting areaUser setting area
Auto refresh area
Auto refresh area
User setting areaUser setting area
Auto refresh area
CPU No.1 send dataCPU No.1 send data
DeviceDevice
CPU No.2 receive areaCPU No.2 receive area
CPU No.3 receive areaCPU No.3 receive area
CPU No.1 send dataCPU No.1 send data
1) Data are written during END processing of CPU No.3.
2) Data are sent from CPU No.3 to CPU No.1 and No.2.
3) Data are read during END processing of CPU No.1.
4) Data are read during END processing of CPU No.2.
1) Data are written during END processing of CPU No.3.
2) Data are sent from CPU No.3 to CPU No.1 and No.2.
3) Data are read during END processing of CPU No.1.
4) Data are read during END processing of CPU No.2.
CPU No.2 receive areaCPU No.2 receive area
CPU No.3 receive areaCPU No.3 receive area
B0B0
B1F
B20B20
B3F
B40B40
B5F
W0W0
W1F
W20W20
W3F
W40W40
W5F
3)
2)
3)
4)
CPU No.3
Multiple CPU high speed transmission area
CPU No.1
CPU No.2
CPU No.3
User setting areaUser setting area
User setting areaUser setting area
Auto refresh area
Auto refresh area
User setting areaUser setting area
Auto refresh area
CPU No.1 receive areaCPU No.1 receive area
DeviceDevice
CPU No.2 receive areaCPU No.2 receive area
CPU No.3 send dataCPU No.3 send data
CPU No.1 receive areaCPU No.1 receive area
CPU No.2 receive areaCPU No.2 receive area
CPU No.3 send dataCPU No.3 send data
B0B0
B1F
B20B20
B3F
B40B40
B5F
D0D0
D31
D32D32
D63
D64D64
D95
CPU No.2
Multiple CPU high speed transmission area
CPU No.1
CPU No.2
CPU No.3
User setting areaUser setting area
User setting areaUser setting area
Auto refresh area
Auto refresh area
User setting areaUser setting area
Auto refresh area
CPU No.1 receive areaCPU No.1 receive area
DeviceDevice
CPU No.2 send dataCPU No.2 send data
CPU No.3 receive areaCPU No.3 receive area
CPU No.1 receive areaCPU No.1 receive area
CPU No.2 send dataCPU No.2 send data
CPU No.3 receive areaCPU No.3 receive area
M0M0
M31
M32M32
M63
M64M64
M95
W0W0
W1F
W20W20
W3F
W40W40
W5F
2)
1)
Data are not refreshed.
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