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10.4 Link direct device
10
DEVICE EXPLANATION
(3) Designation range
The link direct device can specify the link device of the network module.
The link device range that is not set by the network refresh parameter can be
specified.
(a) Writing
• Writing is executed within that part of the link device range set as the send
range in the common parameters of the network parameters that is outside
the range specified as the "refresh range" in the network refresh parameters.
• Although writing is also allowed in the "refresh range" portion of the link
device range (specified by refresh parameters), the link module's link device
data will be rewritten when a refresh operation occurs.
When writing by link direct device, the same data should also be written to the
CPU module related devices designated by refresh parameter.
Figure 10.49 Link direct device write range
LB 0B 0
Network moduleCPU module
Refresh range
Writing range
send range
Link range
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