
2.CYCLIC TRANSMISSION DESCRIPTION B-63434EN/02
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2.1 Common Memory Area 1 Cyclic Transmission
Those areas of common memory area 1 that are to be used for data
exchange can be allocated in the PMC R area in direct image.
An area to be allocated needs to be set beforehand. If the setting of
an allocation area is changed, the power needs to be turned off then
back on.
Procedure
Set the following parameters beforehand:
1) Pa11: Area 1 transmit data start address
2) Pa12: Area 1 transmit data size (in words)
3) Pa30: Allocation address
4) Pa31: Area 1 address
5) Pa32: Data size (in words)
If an allocated area includes a mixture of DI and DO areas as shown
below, data exchange is performed by making a distinction between a
DI area and a DO area, thus posing no problem. When 0 is set in
Pa32 (data size), the data of common memory area 1 is not
exchanged.
#+#
+#-$%'##*+)$
)0+)'-
+#-$%'##*+)$
)0+)'-
+#-$%'##)*0
()&#()'
+#-$%'##*+)$
)0+)'-
+#-$%'##*+)$
)0+)'-
+#-$%'##*+)$
)0+)'-