Omron CJ Series Operation Manual page 219

When you send an explicit message, specify the Master Unit at the local node as the destination of the
command rather than the actual destination (the CompoNet Slave Unit). The actual destination node
address is specified in the command data in the SEND EXPLICIT MESSAGE command.
Command
CPU Unit
SendCmd
instruction
Explicit message
Depending on the type of Slave Unit at the destination, a message may not be received. Be sure to set
retry processing.
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
SendCmd instruction: DstNetAdr input variable
NetNo: This is the network address of the destination.
Set this variable to 0 (local node).
NodeNo: This is the node address of the destination.
Set this variable to 0 (communications within local Controller).
UnitNo: This is the unit address of the destination.
Set the unit address to the unit number + 16#20.
CompoNet Slave Unit
6 Message Communications
6
6-5