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5 PROGRAMMING
If the primary ring and the secondary ring are broken at different points
If the primary ring and the secondary ring are broken at different points (different modules),
transmission and reception at the points of breakage are disabled. (If the primary ring is
broken, transmission from the secondary ring stops.) In the example shown below,
communication is carried on in two groups of modules, one comprising modules B and C, the
other, modules A, D, E, and F.
A
B
C
Primary ring
Secondary ring
F
E
D
* A to F denote an SD.LINK module each.
Figure 5-12 If the Primary Ring and the Secondary Ring Are Broken at Different Points
5-12
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