Omron CJ1W-PNT21 Operation Manual page 139

Troubleshooting the Network
IO Controller Status 2
IO Device Status
LED Indicators
Valid Configuration
The IO Controller Status 2 word displays the state of the Unit's network
interface. It shows if the Ethernet cable is correctly inserted in the IO Controller
and an Ethernet Link could be established to the connected switch or IO
Device. Or that the Ethernet interface of the Unit itself encountered a problem.
/i
LED Indicators
Link Status
Hardware Error
Configuration Error
The IO Device Status word displays the state of the Unit's communication to its
assigned IO Devices. Whether all or at least one IO Device that can process
output data are connected. And if all IO Devices configured are supplying valid
input data.
If one or more IO Devices have an Alarm then this will also be signalled.
Description/Correction
At startup the IO Controller checks if the
stored configuration is valid. A new IO
Controller contains no configuration yet so
therefore it will show it has no valid
configuration.
If a configuration is not valid it means that
means the file could be damaged. It is
possible to download the configuration
again with CX-ConfiguratorFDT.
If downloading the configuration to the Unit
does not solve the issue then replace the
unit.
Description/Correction
The Unit could not establish an ethernet
link at 100Mbps, Full Duplex to the
connected switch or IO device. It could be
that the Ethernet cable is damaged or not
correctly inserted. Or that the connected
device has a fault.
The Ethernet controller of the Unit
encountered a problem. It could be
because of faulty access or there where
broken messages or interrupted data
streams from the network.
This could be caused by external
influences on the network.
At startup the IO Controller checks if the
stored configuration is valid. A new IO
Controller contains no configuration yet so
therefore it will show it has no valid
configuration.
If a configuration is not valid it could be
that the file is damaged. It is possible to
download the configuration again with CX-
ConfiguratorFDT.
If downloading the configuration to the Unit
does not solve the issue then replace the
unit.
Section 8-3
125