3-91
3 Error Tables
NJ-series Troubleshooting Manual (W503)
3-1 Errors by Source
3
3-1-7 Errors in Slave Terminals
The section provides a table of the errors (events) that can occur in the following Units.
NX-ID@@@@
NX-OC@@@@
NX-OD@@@@
85030000 hex Communica-
tions Syn-
chronization
Error
The number of
consecutive errors
in receiving the
synchronization
data exceeded the
value that is
specified in the
Communications
Error Settings.
• Power to the host controller was
interrupted during process data
communications.
• The EtherCAT communications
cable is disconnected or bro-
ken.
SNX-series
EtherCAT
Coupler Unit
User’s Manual
(W519)
84C50000 hex NX Unit
Startup Error
Starting an NX Unit
failed.
• A startup error occurred in an
NX Unit.
S Same as
above.
35030000 hex NX Unit
Observation
An observation was
detected in an NX
Unit.
• An observation level error
occurred in a Unit where an
error was detected.
This event is recorded in the
event log in the Communica-
tions Coupler Unit.
S Same as
above.
350E0000 hex NX Bus
Cycle Delay
Detected
Exceeding the NX
bus cycle was
detected.
• The NX bus cycle was
exceeded.
S Same as
above.
80220000 hex NX Message
Communica-
tions Error
An error was
detected in mes-
sage communica-
tions and the
message frame
was discarded.
• The message communications
load is high.
• The communications cable is
disconnected or broken.
This cause does not apply if
attached information 2 is 0 (NX
bus).
• Message communications were
cut off as the result of executing
a synchronization or restora-
tion operation on the Sysmac
Studio or as the result of dis-
connecting an EtherCAT slave.
S Same as
above.
90400000 hex Event Log
Cleared
The event log was
cleared.
• The event log was cleared by
the user.
S Same as
above.
90420000 hex Restart Exe-
cuted
A restart was exe-
cuted.
• A restart command was
received.
S Same as
above.
90430000 hex Memory All
Cleared
The Unit settings
were cleared.
• The non-volatile memory in the
EtherCAT Coupler Unit was
cleared.
S
Same as
above.
94600000 hex I/O Check
Execution
Started
I/O checking was
started.
• I/O checking was started. S Same as
above.
NX-series Digital I/O Units
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info
00200000 hex Non-volatile
Memory
Hardware
Error
An error occurred in
non-volatile mem-
ory.
• Non-volatile memory failure S NX-series Dig-
ital I/O Units
User’s Manual
(W521)
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info
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