Omron C200HW-CLK21 Operation Manual page 132

What Are Data Links?
Note
Node 1
1
Area 1
2
3
4
Area 2 1
2
3
4
• There are three types of 1:N allocations.
• Programming Devices (including Programming Consoles) are used to set
the automatic data link mode in the DM Parameter Area of the PLC used
as the startup node.
• Node 1 is the master node.
• Areas 1 and 2 can be selected from bit-access areas or the DM Area.
• The send area sizes of the master and slave nodes are the same for each
area.
• Send nodes are in the same ascending order as node numbers.
• All nodes can be specified to either participate or not participate in the
data link.
• The data link areas (data link start words) are common to all nodes partic-
ipating in the data links.
1. Automatic data link creation with 1:N allocations can only be used with the
following Controller Link Units and Support Boards:
Type
Wired networks
2. Controller Link Units and Support Boards other than those listed above
cannot participate in 1:N allocation data links. They can, however, join the
network if a parameter in the DM Parameter Area is set so that they do not
participate in the data links.
3. The Controller Link Support Board (3G8F7-CLK21-V1) can be used in au-
tomatic data link creation with 1:N allocations, but it cannot be the startup
node. Use a Controller Link Unit (CS1W-CLK21-V1 or CJ1W-CLK21-V1)
on the same network as the startup node.
4. For automatic data link creation with 1:N allocations, use the CX-Net in CX-
Programmer version 3.2 or higher.
Node 2 Node 3
1 1
2 3
1 1
2 3
Model
CS1W-CLK21-V1 (for CS Series)
CJ1W-CLK21-V1 (for CJ Series)
3G8F7-CLK21-V1 (for PCI bus)
Section 5-1
Node 4
1
4
1
4
109