7
Serial Communications Connection Procedure
 
7.3.4.  Parameter Settings 
Set the parameters for Serial Communications Unit.   
 
Double-click [0000] Main Rack 
in the PLC IO Table Window to 
expand the tree.   
 
Right-click 00 [1500] 
CJ1W-SCU42 and select Unit 
Setup.   
 
The View Parameters Dialog 
Box is displayed. Select Port2: 
Protocol macro Settings from 
the pull-down list of Displayed 
Parameter.   
 
*The Port 2 on Serial 
Communications Unit is used 
in this document.