Omron CS1W-LC001 Operation Manual page 238

How to Use the Node Terminal Block
Basic Procedure
Step 1. Initial setting to System Common blocks
Step 2. Wiring in software of Terminal to All Nodes Send
block or Terminal from All Nodes Receive block
Step 3. Connection/setting of Controller Link
Step 4. Preparation of Controller Link Data Link table, and
registration and download to all nodes
Step 5. Startup of Controller Link Data Link
Note The Loop Control Unit can also use this function to exchange data with a CPU Unit at another
node via the Data Link even if a Loop Control Unit is not mounted at another node PC on the
Controller Link network.
Initial Setting of the System Common Block
To use the node terminals (excluding the DO and AO Terminal Settings from Computer blocks [Block Models
409 and 410]), CX-Process Tool must be used to set the leading addresses of the Data Memory (on CPU
Unit) for the node terminals to ITEM042 and ITEM043 of the System Common block.
Note When only the DI and AI Terminal Setting from Computer blocks are used as the node terminals
and the data received from the computer is stored to the Area to send to all nodes and is not then
sent to a networked Loop Control Unit, operation is possible without the need to perform initial
setting of the System Common block as shown in the table below.
System Common block (Block Model 000)
ITEM
043 Leading address (S) of Data Memory for the Node
Terminals (on CPU Unit)
042 Setting of LCU number: ID data of multiple (max. 3)
Loop Control Units mounted on CPU Rack
When the above ITEMs are set, the system information of the Loop Control Unit is automatically reflected in
eight words within leading address S to leading address S+23 words of the Data Memory (on CPU Unit) for
the Node Terminals.
Data name Data range Default
0 to 32767 16020
0 to 2 0
Appendix 2
221