Omron sysmac NX Series User Manual page 823

Event name NX Bus I/O Communications Stopped
Meaning An error occurred in I/O communications between the NX Bus Master and an NX Unit.
Source Depends on where the Sysmac
Studio is connected and the sys-
tem configuration.
Error attrib- Level
utes
Effects User program
System-de- Variable
fined varia-
None
bles
Cause and Assumed cause
correction
There is a hardware error in the
NX bus master or an NX Unit.
Attached in- None
formation
Precautions/ None
Remarks
NX-series Safety Control Unit/Communication Control Unit User's Manual (Z395)
Source details NX Unit
Minor fault Recovery
Continues. Operation
Data type
None
Correction
If the error occurs again even af-
ter you cycle the power supply to
the NX Units, replace the NX Bus
Master or the NX Unit.
15 Troubleshooting
Event code 84F10000 hex
Detection tim-
ing
Cycle the pow- Log category
er supply to the
NX bus master
and NX Units.
The NX Units will continue to operate.
•
Input data:
An error occurs in safety process data communi-
cations because refreshing is stopped. The val-
ues of the status in standard process data are
not refreshed.
•
Output data:
An error occurs in safety process data communi-
cations because 0's are output.
Name
None
Prevention
None
Continuously
System
15
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