Omron CQM1H-CLK21 - Manual (Page 131)

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What Are Data Links? Section 5-1
Automatically Setting Data Links with Equality Layout
Automatic setting can be used to create simple data links.
• Using a Programming Device (such as a Programming Console), set the
automatic data link mode in the DM Parameter Area of the startup node.
• Area 1 can be selected from bit-access areas (i.e., IR, CIO, and LR areas)
and area 2 can be selected from DM Area.
• In areas 1 and 2 send areas for each node are of the same size.
• Send nodes are in the same ascending order as node numbers.
• It is not possible to receive only a part of send data.
• All nodes can be specified to either participate or not participate in the
data link.
• The data link areas are exactly the same and common to all nodes partic-
ipating in the data links.
Note The Controller Link Support Software contains a function called
“Easy Setting” that can be used within the manual data link mode to
register the same data links as automatic setting. The “Easy Setting”
can be used first, and then the send size of each node and other set-
tings can be changed as required.
Automatic Setting Data Links with 1:N Allocations
This method is used to simplify setting of 1:N allocation data links between
master and slave nodes.
Example
Node#1 Node#2 Node#3
# 3
# 2
# 1
# 3
# 2
# 1
# 3
# 2
# 1
# 3
# 2
# 1
# 3
# 2
# 1
# 3
# 2
# 1
Area 1
(Bit areas)
Area 2
(Data Memory)