4
- 54
4.3 RAS Functions
4.3.7 External power supply function
4
FUNCTIONS
4.3.7
External power supply function
Power can be directly supplied from the outside to the CC-Link IE controller network
module with external power supply function.
Even if a CPU module power goes down in a network, data link will continue among
normally operating stations without being disrupted at the power-down station. (Loopback
does not occur.)
Data link is also continued between more than one station where CPU module power has
gone down.
(1) Without external power supply function
(2) With external power supply function
Figure 4.60 Without external power supply function
Figure 4.61 With external power supply function
Control
station
No.1
Normal
station
No.2
Loopback station
Loopback station
Normal
station
No.3
Normal
station
No.6
Normal
station
No.5
Normal
station
No.4
Down
Down
No
communication
Data link is not executable
between failed stations.
Control
station
No.1
Normal
station
No.2
Normal
station
No.3
Normal
station
No.6
Normal
station
No.5
Normal
station
No.4
Data link is continued
between failed stations.
External power supply
External power supply
External power supply
External power supply
External power supply
External power supply
Down
Down
Summary of Contents for QJ71GP21-SX
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