Omron CJ Series Operation Manual page 91

The following table shows the conditions and restrictions for each formation.
Item
Master Unit location
Maximum number of Slave Units
connectable to any one branch line
Terminating Resistor location
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
Wiring formation
Trunk-Branch formation
At an end of a network
1 or 3 depending on the cable type
and the baud rate
On the opposite ends of the trunk
line and all sub-trunk lines from the
Master Unit and each Repeater Unit
3 Wiring Configurations
Unrestricted wiring formation
Anywhere in a network (not necessar-
ily at an end)
No restrictions
On the farthest ends from the Mas-
ter Unit and each Repeater Unit
3
3-3