Omron NX-SID800 User Manual

9 Troubleshooting
9 - 30
NX-series Safety Control Unit User’s Manual (Z930)
Event name NX Bus I/O Communications Stopped Event code 84F0 0000 hex
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.
Source details NX Unit Detection timing Continuously
Error attributes Level Minor fault Recovery Cycle the power
supply to the
EtherCAT Cou-
pler Unit and NX
Units.
Log category System
Effects User program Continues. Operation The NX Units will continue to operate.
Input data: An error occurs in safety process data com-
munications because refreshing is stopped.
The values of the status and exposed vari-
ables in the standard process data are not
refreshed.
Output data: An error occurs in safety process data com-
munications because 0’s are output.
System-defined
variables
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
There is a hardware error in the Com-
munications Coupler Unit or an NX
Unit.
If the error occurs again even after
you cycle the power supply to the NX
Units, replace the Communications
Coupler Unit or NX Unit.
None
Attached
information
None
Precautions/
Remarks
None

Omron NX-SID800 Specifications

General

Brand	Omron
Model	NX-SID800
Category	Controller
Language	English