Omron NX1P2 series

6 - 55
6 Troubleshooting
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
6-2 Troubleshooting
6
6-2-4 Error Descriptions
Event name NX Bus I/O Communications Stopped Due to Another
Event
Event code 85540000 hex
Meaning The I/O communications on the NX bus were stopped based on the Fail-soft Operation Setting because an error that
triggers fail-soft operation occurred.
Source NX Bus Function Module Source details Master Detection
timing
Continuously
Error attributes Level Partial fault Recovery Error reset Log category System
Effects User program Continues. Operation I/O communications will not operate, but message com-
munications can be performed.
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
I/O refreshing was stopped based on
the Fail-soft Operation Setting.
Eliminate errors that trigger fail-soft
operation, which occurred before this
event.
To continue the I/O refreshing when
an error that triggers fail-soft opera-
tion is encountered, change the Fail-
soft Operation Setting to Fail-soft.
Attached
information
Attached information 1: Event code that triggered fail-soft operation
Attached information 2: Unit number of the NX Unit where the error occurred
Precautions/
Remarks
None
Event name Registered NX Unit Not Mounted Event code 35920000 hex
Meaning There is no mounted NX Unit that exists in the Unit configuration information registered in the CPU Unit.
If there are more than one NX Unit relevant to this event, only the NX Unit that is nearest to the CPU Unit is registered
with the event.
Source NX Bus Function Module Source details Master Detection
timing
At CPU Unit
power ON, at
Controller reset,
or at NX bus
restart
Error attributes Level Minor fault Recovery Cycle the power
supply to the
CPU Unit, reset
the Controller, or
restart the NX
bus.
Log category System
Effects User program Continues. Operation For NX Units with this error, I/O communications will not
operate and message communications cannot be per-
formed.
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
There is no mounted NX Unit that
exists in the Unit configuration infor-
mation registered in the CPU Unit.
To match the actual configuration with
the Unit configuration information,
mount the relevant NX Unit. To match
the Unit configuration information with
the actual configuration, download to
the CPU Unit the Unit configuration
information from which you deleted
the relevant NX Unit.
Match the project downloaded to the
CPU Unit with the system configura-
tion.
The power supply to the Additional
NX Unit Power Supply Unit is not
turned ON.
Turn ON the power supply to the
Additional NX Unit Power Supply
Unit.
Use the same Unit power supply to
supply the Unit power to the CPU
Rack.
Attached
information
Attached information 1: Unit number of the NX Unit where the error occurred
Precautions/
Remarks
None