9
·
16
9
Master
Slave
01
02
03
04
05
06
07
10
11
12
13
14
15
16
17
20
21
Slave
20
21
22
23
24
25
73
74
75
76
77
: Master station
Slave station number 01 to 77 : octal
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
63 slaves
: Slave station
Group C
This PC is the master of group A
while serving as a slave in group C.
Master
Slave
Group A
This PC is the master of group B while
serving as a slave in group C.
Group B
Master
Slave
Master
Slave
Slave
Slave
Slave
Slave
Slave
(2) Hierarchical link
When 2 sets of JW-20CM are mounted on the optional slot of the basic rack panel, hierarchical link
communication is possible and can increase the number of stations.
• Pay attention to hierarchical link system consisting of more than two levels as it takes time
for communication between the stations at the highest level and at the lowest level.
• Though more than one JW-20CM can be mounted on single basic rack panel, they cannot
directly communicate with other stations beyond one network.
Remarks