Mitsubishi Electric MELSEC Q Series User Manual page 179

Programmable controller multiple cpu system
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If Start and End fields in Auto refresh are left blank, auto refresh is not performed. (Start and End fields in Auto refresh in the
Receive tab can be left blank.)
The example for setting blank to the auto refresh setting .of the CPU No.2 in <Flow of sending data from CPU No.3 to other
CPUs> explained in the previous page 3) is shown below.
In the auto refresh setting of CPU No.2 in Figure 4.36, if the Start (W40) and End (W5F) fields of the Auto refresh are left
blank, auto refresh is not performed to W40 to W5F in CPU No.2.
<Parameter setting>
(g) Receive setting from CPU No.3
(1) Auto refresh setting of CPU No.1
Figure 4.36 Auto refresh setting related to sending and receiving CPU No.3 data (Leaving the second row of PLC No.2 blank)
<Flow of sending data from CPU No.3 to other CPUs>
For flow of sending data from CPU No. 3, refer to 3) Flow of sending data from CPU No.3 to other CPUs on
the previous page.
PLC No.1
Multiple CPU high speed transmission area
PLC No.1
User free area
User free area
Auto refresh area
PLC No.2
User free area
User free area
Auto refresh area
PLC No.3
User free area
User free area
Auto refresh area
Device
Device
B0
B0
to
CPU No.1 send data
CPU No.1 send data
B1F
B20
B20
to
CPU No.2 receive area
CPU No.2 receive area
B3F
B40
B40
to
CPU No.3 receive area
CPU No.3 receive area
B5F
W0
W0
to
CPU No.1 send data
CPU No.1 send data
W1F
W20
W20
to
CPU No.2 receive area
CPU No.2 receive area
W3F
W40
W40
to
CPU No.3 receive area
CPU No.3 receive area
W5F
1) Writing by END processing of CPU No.3
1) Writing by END processing of CPU No.3
2) Sending data from CPU No.3 to CPU No.1 and CPU No.2
2) Sending data from CPU No.3 to CPU No.1 and CPU No.2
3) Reading by END processing of CPU No.1
3) Reading by END processing of CPU No.1
4) Reading by END processing of CPU No.2
4) Reading by END processing of CPU No.2
Figure 4.37 Flow of send data in CPU No.3 to other CPUs when setting blank to No.2 field of PLC No.2
4 - 33
(h) Receive setting of CPU No.3
(2) Auto refresh setting of CPU No.2
Multiple CPU high speed transmission area
PLC No.1
Auto refresh area
PLC No.2
Auto refresh area
PLC No.3
PLC No.3
2)
Auto refresh area
M0
M0
to
CPU No.1 receive area
CPU No.1 receive area
M31
M32
M32
to
CPU No.2 send data
CPU No.2 send data
M63
3)
M64
M64
to
CPU No.3 receive area
CPU No.3 receive area
M95
W0
W0
to
CPU No.1 receive area
CPU No.1 receive area
W1F
W20
W20
to
CPU No.2 send data
CPU No.2 send data
W3F
3)
W40
W40
to
CPU No.3 receive area
CPU No.3 receive area
W5F
PLC No.2
User free area
User free area
User free area
User free area
User free area
User free area
2)
Device
Device
4)
Does not perform refresh.
(i) Send setting from CPU No.3
(3) Auto refresh setting of CPU No.3
PLC No.3
Multiple CPU high speed transmission area
PLC No.1
User free area
User free area
Auto refresh area
PLC No.2
User free area
User free area
Auto refresh area
PLC No.3
PLC No.3
User free area
User free area
Auto refresh area
1)
Device
Device
B0
B0
to
CPU No.1 receive area
CPU No.1 receive area
B1F
B20
B20
to
CPU No.2 receive area
CPU No.2 receive area
B3F
B40
B40
to
CPU No.3 send data
CPU No.3 send data
B5F
D0
D0
CPU No.1 receive area
CPU No.1 receive area
to
D31
D32
D32
to
CPU No.2 receive area
CPU No.2 receive area
D63
D64
D64
CPU No.3 send data
CPU No.3 send data
to
D95

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