Omron SYSMAC CS1W-CLK13 Operation Manual page 145

Setting Data Links
122
Total number of words in the data link send and receive areas of master
node = Number of common send words in master node
+ Number of individual send words in each node × Number of nodes par-
ticipating in data links (including both master nodes and slave nodes)
5. The following values must be satisfied to ensure that the data link area is
fully contained within the specified area.
(Area start word -1) + (Total number of send and receive words of master
node (*)
≤ 6143 (when using the CIO or AR Area)
199 (when using LR Area)
32767 (when using DM or EM Area)
*:Total number of send and receive words in master node = Number of
common send words in master node
+ Number of send and receive words in master node × Number of nodes
participating in data links (including both master nodes and slave nodes)
6. If a node that does not actually exist (e.g., a node that is scheduled to be
added in the future) is registered as a node that will participate in the data
links, a data link area for that node will be allocated in the master node, and
the send and receive areas for it will be refreshed with 0 data.
7. Automatic data link creation with 1:N allocations can be performed only
with CS1W-CLK12-V1 and CS1W-CLK52-V1 Controller Link Units from lot
number 0306@@_@@@@, or CS1W-CLK13 and CS1W-CLK53 Controller
Link Units. If any other model is used, the LNK indicator will flash and it will
not be possible for the Unit/Board to participate in automatic setting of 1:N
allocations. (The first four digits of the lot number indicate the year and
month of manufacture from 2000 onwards.)
8. If automatic data link creation with 1:N allocations is to be set up using CX-
Net operations in the CX-Programmer, use CX-Programmer version 3.2 or
later. Setup cannot be performed using CX-Programmer version 3.1 or
earlier.
9. The startup node (the node that sets the above DM Area parameters and
starts the data links) can be set as either a master node or a slave node.
Section 5-2