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The values of the following items may increase if there is an EtherCAT network error.
The following table gives the description of each item, assumed cause of increase, and correction.
Item
Displayed informa-
tion
Assumed cause of increase
Possible correction
Frame reception
timeout count
The number of frame
reception timeouts
that occurred.
A cause to a
Process Data
Reception Timeout
error occurred.
The Frame reception timeout count
will increase also when the count in
the CRC Error Frames Received,
Short frames received, or Overlength
frames received increases.
Reception buffer
overflow count
The number of
frames discarded due
to buffer overflows
when receiving data.
There are too many frames on the
EtherCAT network that are not Ether-
CAT frames.
See if there are computers or other
non-EtherCAT devices connected to
the EtherCAT network and remove
them if there are any.
Non-EtherCAT
frames received
The number of
frames received other
than EtherCAT
frames.
There are frames on the EtherCAT
network that are not EtherCAT
frames.
See if there are computers or other
non-EtherCAT devices connected to
the EtherCAT network and remove
them if there are any.
Link OFF count
The number of times
link OFF was detect-
ed.
A cause to a
Link OFF Error
(84200000 hex) event occurred.
Refer to a
Link OFF Error
(84200000
hex) event in the
NJ/NX-series
Troubleshooting Manual (Cat. No.
W503)
and remove the cause of the
error.
Discarded process
data receptions
The number of proc-
ess data packets dis-
carded when receiv-
ing process data.
Operations for which multi-execution
is prohibited in
Physically Disconnecting a Slave
and Resetting an Error or Connect-
ing a Slave at the Same Time
page 9-25 were executed.
The value sometimes increases
when the network is started or com-
municating EtherCAT slaves are re-
placed.
cally Disconnecting a Slave and Re-
setting an Error or Connecting a
Slave at the Same Time
Discarded mes-
sage receptions
The number of mes-
sages discarded in
mailbox reception.
A cause to an
EtherCAT Message
Error
(842D0000 hex) or
Illegal
Mailbox Received
(84350000 hex)
event occurred.
Refer to an
EtherCAT Message Error
(842D0000 hex) or
Illegal Mailbox
Received
(84350000 hex) event in
the
NJ/NX-series Troubleshooting
Manual (Cat. No. W503)
and remove
the cause of the error.
CRC error frames
received
The number of
frames received that
resulted in CRC er-
rors.
The frames on the EtherCAT net-
work are corrupted.
Frame reception
errors
The number of
frames resulting in re-
ception errors from
the Ethernet control-
ler (EtherMAC).
The frames on the EtherCAT net-
work are corrupted due to noise.
Implement noise countermeasures.
Refer to
9 Troubleshooting
9-14
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
Содержание NJ101-10 Series
Страница 10: ...Manual Structure 8 NJ NX series CPU Unit Built in EtherCAT Port User s Manual W505...
Страница 68: ...2 Part Names and Slave Settings 2 18 NJ NX series CPU Unit Built in EtherCAT Port User s Manual W505...
Страница 80: ...3 EtherCAT Communications 3 12 NJ NX series CPU Unit Built in EtherCAT Port User s Manual W505...
Страница 236: ...9 Troubleshooting 9 38 NJ NX series CPU Unit Built in EtherCAT Port User s Manual W505...
Страница 274: ...Appendices A 38 NJ NX series CPU Unit Built in EtherCAT Port User s Manual W505...
Страница 275: ...I Index I 1 NJ NX series CPU Unit Built in EtherCAT Port User s Manual W505 I...
Страница 279: ......