SC-HG1 Series FB Library Reference Manual for Mitsubishi MELSEC iQ-R series Sequencer
WUME-SCHG1IQRFB-1
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When in normal mode
Indicator Status
Description of error
Meaning
RUN
indicator
(Green)
OFF Station number setting error
Check whether or not the station number is outside the valid
range.
D LINK
indicator
(Green)
Flashes Communication setting error
The CC-Link IE Field network may be incorrectly configured.
Check the following settings.
<Network number setting>
Check if the network number of the communication unit is
the same as that of the master station.
<Station number setting>
Check if the station number of the communication unit is set
to the station number assigned from the master station.
Check if the station number configured on the
communication unit is unique among the slave stations.
<Other>
Set the communication unit station type on the remote device
station.
The network status of the master station or communication
unit is set to "link stopped" and the link stop period is
ongoing.
ERR.
indicator
(Red)
ON Transmission path error
A failure related to network transmission paths may have
occurred.
Check the communication cable for breaks and imperfect
connection.
If the communication cable is not an Ethernet cable
compliant with the 1000BASE-T standards, communication
may fail.
Check that the cable length between stations is not in excess
of 100 m.
Check if the other stations and network devices (such as
switching hubs) connected to the communication unit are
powered ON.
If the loopback function is configured on the master station,
check if the ring connection is implemented.
Check the noise environment around the communication unit
and the communication cable.
Flashes Setting change error
This error is displayed as an alarm if the station number is
changed during operation after power-ON.
The alarmed station number does not take effect. Revert to
the original station number or turn OFF and back ON the
power for the change to take effect.
Port1/2
L ER
indicator
(Yellow)
ON Transmission path error
If the loopback function is configured on the master station,
check if the ring connection is implemented.