5
Unit 1
Main Device
Unit 2
Slave(get local data,
transfer local data)
Unit 3
Slave(get local data,
transfer local data)
Unit 4
Slave(get local data,
transfer local data)
6
Unit 1
Main Device
Unit 2
Slave(get local data,
transfer local data)
Unit 3
Slave(get Cascade data,
transfer Cascade data)
Unit 4
Slave(get Cascade data,
transfer Cascade data)
7
Unit 1
Main Device
Unit 2
Slave(get local data,
transfer Cascade data)
Unit 3
Slave(get Cascade data,
transfer Cascade data)
Unit 4
Slave(get Cascade data,
transfer Cascade data)
8 And more
……