4
- 52
4.3 RAS Functions
4.3.6 Detection of duplicated control station or station No.
4
FUNCTIONS
(3) When adding a network to another network
A network will be added to another network in the following cases:
• After a network is divided into two due to cable disconnection, the cable is
reconnected.
• After dividing or localizing a network to debug the system, the divided networks is
to be reconnected into one.
(a) When duplication of the control station is detected
Figure 4.58 When duplication of the control station is detected
Table 4.19 When duplication of the control station is detected
Function
Operation
Cyclic transmission
The two control stations do not perform cyclic transmission.
The sub-control station performs cyclic transmission.
Transient transmission
Available for all stations.
Control station
No. 1
Normal station
No. 2
Normal station
No. 4
Normal station
No. 3
Cyclic transmission among stations
No.1 to No.4
Control station duplication occurs at two control stations.
Another network was added by mistake.
Control station
No. 6
Normal station
No. 5
Cyclic transmission between
stations No.5 and No.6
Sub-control station continues cyclic transmission.
Control station
No. 6
Normal station
No. 5
Control station
No. 1
Sub-control
station No. 2
Normal station
No. 4
Normal station
No. 3
Control station
duplication
Control station
duplication
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