Omron NX1P2 series User Manual page 269

Event name Number of Mountable NX Units Exceeded
Meaning The number of mounted NX Units exceeds the specified value for the CPU Unit.
Source NX Bus Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
More than the maximum number of
NX Units are mounted on the CPU
Unit.
Attached None
information
Precautions/ None
Remarks
Event name Total I/O Data Size in NX Units Excessive
Meaning The total size of I/O data in the mounted NX Units exceeds the maximum specified value for the CPU Unit.
Source NX Bus Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
The total size of I/O data in the
mounted NX Units exceeds the maxi-
mum specified value for the CPU
Unit.
Attached None
information
Precautions/ None
Remarks
NX-series NX1P2 CPU Unit Hardware User's Manual (W578)
Source details
Partial fault Recovery
Continues. Operation
Data type
---
Correction
Keep the number of NX Units
mounted on the CPU Unit at the spec-
ified number or less.
Source details
Partial fault Recovery
Continues. Operation
Data type
---
Correction
Reduce the number of NX Units
mounted on the CPU Unit to keep the
total size of I/O data at the maximum
specified value or less.
6 Troubleshooting
Event code 24D00000 hex
Master Detection
timing
Cycle the power Log category
supply to the
CPU Unit or reset
the Controller.
• For NX Units within the range of the number of mount-
able Units, I/O communications will not operate, but
message communications can be performed.
• For NX Units outside the range of the number of mount-
able Units, I/O communications will not operate and
message communications cannot be performed.
Name
---
Prevention
Mount the specified number of NX
Units or less.
Event code 24D20000 hex
Master Detection
timing
Cycle the power Log category
supply to the
CPU Unit or reset
the Controller.
I/O communications will not operate, but message com-
munications can be performed.
Name
---
Prevention
Reduce the number of NX Units
mounted on the CPU Unit to keep the
total size of I/O data at the maximum
specified value or less.
At CPU Unit
power ON, at
Controller reset,
or at NX bus
restart
System
6
At CPU Unit
power ON, at
Controller reset,
or at NX bus
restart
System
6 - 51