3-79
3 Error Tables
NJ-series Troubleshooting Manual (W503)
3-1 Errors by Source
3
3-1-5 Errors in the EtherCAT Master Function Module
84220000 hex Network
Configura-
tion Verifica-
tion Error
A slave that is in the
network configura-
tion information is
not connected. Or,
a slave that is not in
the network config-
uration information
is connected.
• A slave that is in the network
configuration information is not
connected.
• There is a node address mis-
match.
• A different slave from the one
that is specified in the network
configuration information is
connected.
• A slave that is not in the net-
work configuration information
is connected.
• The hardware switches for the
slave node address were
changed to a value other than 0
after the Write Slave Node
Address operation was per-
formed from the Sysmac Stu-
dio.
• The Ethernet physical layer is
broken between two slaves.
S NJ-series
CPU Unit
Built-in Ether-
CAT Port
User’s Manual
(Cat. No.
W505)
84230000 hex Slave Initial-
ization Error
Slave initialization
failed.
• An error occurred in EtherCAT
master processing.
• An initialization error occurred
in the EtherCAT slave.
S Same as
above.
84280000 hex Slave Appli-
cation Error
An error occurred in
the slave applica-
tion.
• An error was detected in the
slave’s application layer status
register.
S Same as
above.
84290000 hex Process Data
Transmis-
sion Error
Sending process
data failed.
• It was not possible to send the
EtherCAT frame during the
EtherCAT communications
period.
• The frame transmission jitter
exceeded the limit.
S Same as
above.
842B0000 hex Process Data
Reception
Timeout
Process data
reception timed out.
• The Ethernet cable is broken.
• The Ethernet cable for Ether-
CAT is disconnected.
• A general-purpose Ethernet
hub is connected.
• The master failed.
• The slave failed.
• The Ethernet cable is too long.
• The CPU Unit task period is too
short.
• Noise
S Same as
a
bove.
842C
0000 hex Process Data
Communica-
tions Error
An error occurred in
process data com-
munications.
• A slave left the network even
though the disconnection oper-
ation was not performed.
• Noise
• The slave failed.
S Same as
above.
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info