3-105
3 Error Tables
NJ-series Troubleshooting Manual (W503)
3-1 Errors by Source
3
3-1-7 Errors in Slave Terminals
Safety I/O Units
80220000 hex NX Message
Communica-
tions Error
An error was
detected in mes-
sage communica-
tions for an NX Unit
and the message
frame was dis-
carded.
The message communications
load is high.
SNX-series
Safety Control
Unit User’s
Manual (Z930)
90400000 hex Event Log
Cleared
The event log was
cleared.
The event log was cleared by the
user.
S Same as
above.
90430000 hex Memory All
Cleared
The Unit settings
were cleared.
The Clear All Memory operation
was performed.
S Same as
above.
951E0000 hex Sysmac Stu-
dio Commu-
nications
Connection
Timeout
A communications
timeout occurred
between the Sys-
mac Studio and the
Safety CPU Unit.
• The communications cable was
disconnected.
S Same as
above.
951F0000 hex Clear All
Memory
Rejected
Clearing all of
memory failed.
• The Clear All Memory operation
was performed for the entire
Slave Terminal.
S Same as
above.
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info
05200000 hex System Error A hardware error
was detected dur-
ing self-diagnosis of
the hardware.
• Hardware has failed.
• A memory error occurred due
to a transient cause, such as a
software error or excessive
noise.
SNX-series
Safety Control
Unit User’s
Manual (Z930)
05210000 hex Internal Cir-
cuit Error at
Safety Input
A fault was
detected in the
internal circuit for
the safety input ter-
minal.
• The internal circuit for the
safety input terminal is faulty.
• A memory error or signal error
occurred due to a transient
cause, such as a software error
or excessive noise.
S Same as
above.
05220000 hex Internal Cir-
cuit Error at
Test Output
A fault was
detected in the
internal circuit for
the test output ter-
minal.
• The internal circuit for the test
output terminal is faulty.
• A memory error or signal error
occurred due to a transient
cause, such as a software error
or excessive noise.
S Same as
above.
05230000 hex Internal Cir-
cuit Error at
Safety Output
A fault was
detected in the
internal circuit for
the safety output
terminal.
• The internal circuit for the
safety output terminal is faulty.
• A memory error or signal error
occurred due to a transient
cause, such as a software error
or excessive noise.
S Same as
above.
35210000 hex Safety Pro-
cess Data
Communica-
tions Not
Established -
Incorrect Unit
Parameter
Error
Safety process data
communications
was not estab-
lished with the
Safety CPU Unit.
• The model or safety I/O termi-
nal settings are not correct.
S Same as
above.
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info
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