Omron V670 Series, User Manual

Page: 43 / 143

3-1 Controller
3-3
3-1-1-4 Setting Node Number Setup Switch
♦
Node number
To connect several controllers to one host device using a link adapter etc., the host device needs to identify each of those controllers.
The number to identify them is referred to as node number. A unique node number must be assigned to every controller.
The command and response of 1:N protocol have the node number. So, unless the node number is assigned appropriately, any commu-
nication cannot be made.
♦
Setting node number
Set the node number with the two node number setup switch. SW1 (left) is for an upper order and SW2 (right) for a lower order. Avail-
able number range is from 00 to 31 as shown below.
The factory default setting of the node number is 00.
SW1 SW2
Node Number
Upper
order
Lower
order
0 0 0
0 1 1
0 2 2
0 3 3
0 4 4
0 5 5
0 6 6
0 7 7
0 8 8
0 9 9
1 0 10
1 1 11
: : :
2 9 29
3 0 30
3 1 31
3 2 Disabled
3 3 Disabled
: : :
9 9 Disabled
Correct Usage
Never assign the numbers 32 to 99 to the node number setup switch.
Node No. 0
Node No. 17
Example of setting: