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CHAPTER 6 COMMUNICATIONS AMONG CPU MODULES
6
6.1 Communications Using the CPU Shared Memory
6.1.1 Communications by auto refresh (using the auto refresh area)
• Different devices can be set for Setting 1 to 4.
The same device can also be set as long as the device ranges for Setting 1 to 4 are not overlapped.
[Auto refresh processing]
Setting 1: The link relay (B) is specified.
Setting 2: The link register (W) is specified.
Setting 3: The link relay (B) is specified.
Different devices can be set for
Setting 1 to 4.
The same device can also be set for
Setting 1 to 4. Make sure the device
ranges are not overlapped. In the
setting example here, since the link
relay ranges B0 to B9F (160 points)
are used for Setting 1, set the link
relay ranges BA0 and later for
Setting 3.
The start and end addresses are automatically calculated by the programming tool.
CPU No.1
Device
B0
B1F
B20
B3F
B100
B11F
B120
B13F
B100
B11F
B120
B13F
Device
B0
B1F
B20
to
to
to
to
to
to
to
to
B3F
CPU No.2
Used for
Setting 1.
Used for
Setting 3.