Omron CS1W-SLK11-21 - 06-2004 Manual page 67

Data Link Area Allocations
Different Allocations for
Each Node
Note
Creating Two or More Data
Link Groups in One
Network
50
To limit receiving from specified nodes and send only or receive only from
specified nodes, change the refresh parameters for each node. In the follow-
ing example, node 5 does not receive data from node 6, and node 6 does not
receive data from node 2. Also, node 8 only receives data.
Node 2
CIO Area CIO Area
DM Area
The send area for node 8 has specified 0 for both the CIO Area and DM Area
in the common link parameters.
Only nodes with refresh parameters will participate in the data links.
Although the node order in the manual settings can be changed as you wish,
the Data Link Area must be created in continuous areas.
The common link parameters are the same for each network. Consequently,
multiple data link groups cannot be created in a SYSMAC LINK Network. Vir-
tual data link groups, however, can be created using the refresh parameters.
As shown below, if you divide the groups and set the send and receive words
for the nodes within each group, you can set multiple data link groups, as
shown in the following diagram.
Node 5 Node 6
CIO Area
DM Area DM Area
Section 4-6
Node 8
CIO Area
DM Area