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4 TROUBLESHOOTING
4.3 Checking the Network Status
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4
4.
Select the station to be diagnosed from "Select Station" or in "Network Status".
• An icon indicating an error is displayed on the module icon of the station where an error occurs.
• A disconnected station that has performed data link is indicated with the "Disconnected Station" icon in the network map.
However, a disconnected station in following case is displayed on the right end of the area.
• The "Error" icon is displayed on the icon of a cable where a communication error occurs. To check the details of the
communication error, click the neighboring stations of the "Error" icon.
• The "Error (Illegal ring connection detected/Execute loopback)" icon is displayed if the network is configured in ring
topology although "Network Topology" of "Basic Settings" is set to "Line/Star".
• The "Error (Illegal ring connection detected/Execute loopback)" icon is displayed if the network is configured in star
topology although "Network Topology" of "Basic Settings" is set to "Ring".
• The "Error (Illegal ring connection detected/Execute loopback)" icon is displayed if the network is incorrectly configured in
ring topology or loopback is performed due to an error such as cable disconnection.
*1
*1 Whether icon is displayed or not when loopback is performed depends on the firmware version of the master/local module. (
When the station to be diagnosed cannot be selected, the status of network number disparity, control station
duplication, or station number duplication cannot be checked using the CC-Link IE Field Network diagnostics.
Check the error details by directly connecting the supported engineering tool to the slave station where an
error occurs, and opening the "System Monitor" window.
Stations displayed on the right end of the area.
• A station that was reconnected to a network after disconnecting/inserting the cable or powering off and on the system, and remains disconnected
• A disconnected station with the station icon deleted in the network map by clicking the [Update] button
Disconnected
station
Summary of Contents for MELSEC iQ-R04ENCPU
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Page 61: ...1 FUNCTIONS 1 3 IP Packet Transfer Function 59 1 ...
Page 385: ...383 I Transient transmission 15 ...
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