Omron NX-SID Series User Manual page 381

Event name Safety Process Data Communications Timeout
Meaning A communications timeout occurred in safety process data communications with the Safety Control Unit.
Source Depends on where the Sysmac Stu-
dio is connected and the system con-
figuration.
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
A setting is not correct. The setting of
the safety task period is too short.
There is excessive noise.
The Safety CPU Unit or safety slave
entered a status where it could not
continue safety process data commu-
nications.
An error or status change occurred in
the Communications Coupler Unit to
which the Unit is connected, prevent-
ing correct process data communica-
tions.
Attached None
information
Precautions/ None
Remarks
Event name NX Bus I/O Communications Stopped
Meaning An error occurred in I/O communications between the Communications Coupler Unit and an NX Unit.
Source Depends on where the Sysmac Stu-
dio is connected and the system con-
figuration.
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
There is a hardware error in the Com-
munications Coupler Unit or an NX
Unit.
Attached None
information
Precautions/ None
Remarks
NX-series Safety Control Unit User's Manual (Z930)
Source details
Minor fault Recovery
Continues. Operation
Data type
None
Correction
Increase the safety task period and
then transfer the settings to the
Safety CPU Unit.
Implement noise countermeasures.
Check the status of the Safety CPU
Unit or safety slave.
Check the status of the Communica-
tions Coupler Unit to which the Unit is
connected.
Source Details
Minor fault Recovery
Continues. Operation
Data type
None
Correction
If the error occurs again even after
you cycle the power supply to the NX
Units, replace the Communications
Coupler Unit or NX Unit.
9 Troubleshooting
Event code 80300000 hex
NX Unit Detection timing
For request to Log category
establish commu-
nications from
Safety CPU Unit
after removing
cause of error
The Unit continues to operate. The safe states are used
for the I/O data of the safety connection where the error
was detected.
Name
None
Prevention
Set the system configuration and
setup according to the corrections
that are given on the left.
Implement noise countermeasures if
excessive noise caused the error.
Refer to troubleshooting information
for the Safety CPU Unit or safety
slave.
Set the system configuration and
setup according to the corrections
that are given on the left.
Event code 84F10000 hex
NX Unit Detection timing
Cycle the power Log category
supply to the
EtherCAT Cou-
pler Unit and NX
Units.
The NX Units will continue to operate.
Input data: An error occurs in safety process data commu-
nications because refreshing is stopped. The values of the
status in standard process data are not refreshed.
Output data: An error occurs in safety process data com-
munications because 0's are output.
Name
None
Prevention
None
When establish-
ing or during
safety process
data communica-
tions
System
Continuously
9
System
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