Mitsubishi Electric MELSEC iQ-R CC-Link IE TSN, Руководство пользователя

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70
1 FUNCTIONS
1.5 RAS
Setting method
1.
Configure the network in ring topology.
2.
Set "Network Topology" to "Ring" in "Basic Settings" of the master station.
Parameter setting and network configuration operation
If a station for which no parameters are set exists in a ring topology, the station does not perform a data link. In
such a case, a loopback occurs at the adjacent station.
Network topology
setting
(

Page 102 Network
Topology)
Actual connection status
Ring topology Line topology Star topology or coexistence of
line and star topologies
Ring topology Normal operation Start cyclic transmission.
• The LED indication of the link-down
port in the loopback station is turned
off of the SD/RD LED and is turned on
of the L ER LED.
• 'Loopback status' (SB0065) turns on
in the master station.
• The station number of the loopback
station is stored in 'Loopback station
number 1' (SW0070) and 'Loopback
station number 2' (SW0071).
• In the network map of the CC-Link IE
TSN/CC-Link IE Field diagnostics, the
topology is displayed as line topology.
Data link error
• The ERR LED on the master station
turns on.
• "60H: Illegal ring connection (master
station only)" is stored in 'Cause of
data link stop' (SW0049).
Line/Star Data link error
• The ERR LED on the master station
turns on.
• "60H: Illegal ring connection (master
station only)" is stored in 'Cause of
data link stop' (SW0049).
Normal operation Normal operation