Omron NJ101-10 Series, Руководство пользователя

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Master diagnosis and
statistical information
trend
Slave diagnosis and
statistical information
trend
Assumed error cause Possible correction
The frame
reception
timeout
count is
increas-
ing. The num-
ber of
CRC error
frames re-
ceived is
not in-
creasing. "Failed" is displayed for
the number of error
frames. The power is not supplied
to the EtherCAT slave. Supply the power to the
EtherCAT slave.
A connector on the Ether-
net cable is disconnected,
the contact is faulty, or
parts are faulty. Make sure the connector
is mated correctly, or re-
connect the connector.
The Ethernet cable is bro-
ken or the specified cable
was not used. Replace the Ethernet ca-
ble.
A general-purpose Ether-
net hub is connected. Replace the general-pur-
pose Ethernet hub with
an EtherCAT Junction
Slave.
The EtherCAT slave
failed. Replace the EtherCAT
slave.
The number of error
frames is not increasing. The EtherCAT master
communications cycle is
too short. Go online with the Sys-
mac Studio, lengthen the
task period (communica-
tions cycle), and set it in
the CPU Unit again.
The num-
ber of
CRC error
frames re-
ceived is
increas-
ing. "Failed" is displayed for
the number of error
frames and the number of
error frames is increas-
ing. A connector on the Ether-
net cable is disconnected,
the contact is faulty, or
parts are faulty. Make sure the connector
is mated correctly, or re-
connect the connector.
The EtherCAT slave
failed. Replace the EtherCAT
slave.
"Failed" is displayed for
the number of error
frames or the number of
error frames is increas-
ing. There is noise. Implement noise counter-
measures.
The following is a description of the case which does not correspond to any of above conditions.
If a certain number of the frame reception timeout count and CRC error frames received for the
master diagnostic and statistical information, as well as a certain number of error frames for the
slave diagnostic and statistical information are detected but are not increasing, these numbers
were detected temporarily due to any of the following error causes.
• A connector on the Ethernet cable is disconnected, the contact is faulty, or parts are faulty.
• There is noise.
• The Ethernet cable is broken or the specified cable was not used.
Implement corrections for the error locations that you found. Refer to the table above for what to do
for corrections.

Step 5: Confirming After Implementing Corrections
To confirm that the error locations were corrected, perform the procedure in Step 2: Checking for
Errors in Trends in Master Diagnostic and Statistical Information on page 9-4 again to make sure
the network is operating normally.
9 Troubleshooting
9-10
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)