Figure 4-10 When Adjacent Multiple Modules Stop (Power Failure); Figure 4-11 When Nonadjacent Multiple Modules Stop (Power Failure) - Hitachi S10mini OD.RING Hardware Manual

If adjacent modules stop (power failure), the remaining modules are used to continue
communication.

Figure 4-10 When Adjacent Multiple Modules Stop (Power Failure)

If nonadjacent modules stop (power failure), as shown in Figure 4-11, adjacent modules continue
communication.

Figure 4-11 When Nonadjacent Multiple Modules Stop (Power Failure)

Secondary ring
A
Primary ring
D
Secondary
A
Primary ring
G
F
B
C
A through D are OD.RING modules.
ring
B
E D
A through D are OD.RING modules.
4-9
4 USER GUIDE
C