Mitsubishi Electric MELSEC iQ-R04ENCPU, User Manual

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4 TROUBLESHOOTING
4.3 Checking the Network Status
231
4
*1 When monitoring the network containing a redundant system, even if a temporary data link error occurs at the time the [Update] button
is pressed, a system switching request will not be issued.
*2 For a redundant line configuration, when the [Update] button is pressed, the network maps of other systems will not be updated.
Network Status Total Slave Stations
(Parameter) Displays the total number of slave stations set in "Network Configuration Settings" of "Basic Settings".
Total Slave Stations
(Connected) Displays the total number of slave stations actually performing baton pass on CC-Link IE Field Network.
Current Link Scan Time Displays the link scan time of the displayed network.
Number of Station Errors
Detected Displays the number of error stations in the displayed network.
Constant Link Scan Setting
Value Displays the setting value of the "Constant Link Scan Time" under "Supplementary Cyclic Settings" of
"Application Settings".
Network map Displays the network map and the status of each station.
If the status is not displayed, check that there is only one master station in the system and no station
number is overlapped.
For details on the network map, refer to the following.
 Page 234 Network map
Disconnected station monitor
area Displays a disconnected station that has been set in "Network Configuration Settings" of "Basic Settings"
but has not yet performed data link.
However, even if a disconnected station had performed data link, it is displayed in this area in the
following cases.
• 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
The "Other Modules" icon indicates a station that has not yet performed data link.
Icons other than "Other Modules" icon indicate stations that had performed data link before
disconnection.
For details on the displayed icon, click the [Legend] button.
Selected Station Communication Status Monitor Displays status of the station selected in "Network Status".
For details on "Selected Station Communication Status Monitor", refer to the following.

Page 237 Selected Station Communication Status Monitor
Operation Test [Communication Test] button Performs a communication test. (

Page 39 Communication test)
[IP Communication Test]
button Performs a IP communication test. (  Page 48 IP communication test)
[Cable Test] button Performs a cable test. (  Page 239 Cable Test)
[Link Start/Stop] button Starts or stops cyclic transmission. (

Page 241 Link Start/Stop)
Information
Confirmation/
Setting [Reserved Station Function
Enable] button Temporarily cancels a reservation for a slave station or reserves the slave station again. (

Page 244
Reserved Station Function Enable)
[Enable/Disable Ignore Station
Errors] button Sets a slave station as a temporary error invalid station. (  Page 246 Enable/Disable Ignore Station
Errors)
Selected Station
Operation [Remote Operation] button Performs remote operation (such as RUN, STOP, or RESET operations) to the CPU module. (

Page
250 Remote Operation)
Item Description
Disconnected station
monitor area