Omron NJ501-1320 - Page 227

5-47
5 Troubleshooting
NJ-series CPU Unit Hardware User’s Manual (W500)
5-2 Troubleshooting
5
5-2-4 Error Descriptions
* For details, refer to I/O Operation for Major Fault Level Controller Errors on page 5-6.
* For details, refer to I/O Operation for Major Fault Level Controller Errors on page 5-6.
Event name Unsupported Unit Detected Event code 24010000 hex
Meaning An unsupported CJ-series Unit or Power Supply Unit is mounted.
Source PLC Function Module Source details I/O bus master Detection
timing
At power ON or
Controller reset
Error attributes Level Major fault Recovery Cycle the power
supply.
Log category System
Effects User program Stops. Operation Stops.*
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
An unsupported CJ-series Unit or
Power Supply Unit was detected.
Remove the unsupported CJ-series
CPU Unit or Power Supply Unit and
replace it with a supported one.
Use a Unit that is supported by this
CPU Unit.
Attached
information
Attached information 1: Rack number where error was detected, 0 to 3
Attached information 2: Slot number where error was detected, 0 to 9
Attached information 3: Profile code that gives the Unit type
Precautions/
Remarks
This error will not occur for unsupported Power Supply Units that are mounted on Expansion Rack. Make sure that the
Power Supply Units connected to the Expansion Racks are supported before using them.
Event name Too Many I/O Points Event code 24020000 hex
Meaning The total number of I/O points in the connected CJ-series Units exceeds the maximum specified value of the CPU Unit.
Source PLC Function Module Source details I/O bus master Detection
timing
At power ON or
Controller reset
Error attributes Level Major fault Recovery Cycle the power
supply.
Log category System
Effects User program Stops. Operation Stops.*
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
The total number of I/O points in the
connected CJ-series Basic I/O Units
exceeds 2,560.
Set the total number of I/O points in
the CJ-series Basic I/O Units to 2,560
or less.
Set the total number of I/O points in
the CJ-series Basic I/O Units to 2,560
or less.
Attached
information
Attached information 1: Total number of I/O points in the CJ-series Basic I/O Units
Precautions/
Remarks
None