Sharp JW-20CM User Manual page 114

(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.
Slave
Slave
9
Remarks
• 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.
Master
０３
０１ ０２ ０４ ０５ ０６
２１ ２２ ２３ ２４ ２５
２０
This PC is the master of group A
while serving as a slave in group C.
Group A
０７ １０ １１ １２ １３
: Master station : Slave station
Slave station number 01 to 77 : octal
Group C
This PC is the master of group B while
serving as a slave in group C.
Group B
9 16
·
１４ １５ １６ １７ ２０ ２１
７３ ７４ ７５ ７６ ７７