User`s manual

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MELSEC
7 UTILITY OPERATION
7.2.4 Operations on Network Monitor screen
This screen monitors the line status of the host.
POINT
To restart monitoring after monitoring stops due to an error, display a screen other
than the "Network Monitor" screen first, and then display the "Network Monitor"
screen again.
Item Description
Channel Displays the channel number.
St. Displays the station number of the host.
Monitors and displays the startup status of the data link.
Status Contents
Initial status Data link is in initial status.
No parameter Parameters have not been received.
Data linking The data link is being executed.
Data link stopping The data link has stopped.
Disconnecting (Not
poling)
There is no inquiry from the master station and
the link is disconnected.
Disconnecting (Line Error) The link is disconnected due to an error in the line.
Disconnecting (others) The link is disconnected due to other reasons.
Line testing A line test is being performed.
Parameter Set testing
A test is being performed on the parameter
settings from the master station.
Automatic returning A return is automatically being processed.
Resetting The board is being reset.
Data Link Status
Monitors and displays the error status.
Display Contents
Normal Normal status
Transmission Error Error in communication path was detected.
Parameter Error Error in parameters was detected.
CRC Error CRC error was detected.
Time Out Error Timeout error was detected.
Abort Error
An error in the CC-Link board (gate array) was
detected.
Setting Error Error in the setting was detected.
Other Error Error arising from some other cause was detected.
Error Status
Max Displays the maximum value for the link scan time. (1 ms unit)
Current Displays the current value for the link scan time. (1 ms unit)Link Scan Time
Min Displays the minimum value for the link scan time. (1 ms unit)