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[2] Hierarchical link
When 2 sets of JW-21MN are mounted on the basic rack panel of the JW20/JW20H/JW30H,
hierarchical link communication is possible and can increase the number of stations.
Slave
０３
０２
０４
０１
Slave
２１
２２
２３
２０
This PC is the master of group A
while serving as a slave in group C.
Group A
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-21MN can be mounted on single basic rack panel, they cannot
directly communicate with other stations beyond one network.
Master
０５
０６
０７
１０
１１
１２
２４
２５
: Master station
Slave station number 01 to 77 : octal
Group C
9-7
１３
１４
１５
１６
１７
７３
７４
７５
: Slave station
This PC is the master of group B while
serving as a slave in group C.
Group B
２０
２１
７６
７７
9
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