Omron NJ501-1400 User Manual page 196

5 Troubleshooting
Errors Related to CJ-series Unit Configuration
Event code Event name
04010000 hex I/O Bus
Check Error
24010000 hex Unsupported
Unit Detected
24020000 hex Too Many I/O
Points
24030000 hex End Cover
Missing
24040000 hex Incorrect
Unit/Expan-
sion Rack
Connection
24050000 hex Duplicate
Unit Number
34010000 hex I/O Setting
Check Error
44400000 hex PLC Function
Processing
Error
5-16
Meaning Assumed cause
An error occurred in • The I/O Connecting Cable is
a bus line transmis- disconnected or wires inside it
sion between the are broken.
CPU Unit and the
• Conductive material has gotten
Units in the rack
inside.
slots. Or, detection
• The connector contact is faulty
of all Special I/O
due to foreign material in the
Units and CPU Bus
connector.
Units was not com-
• Noise
pleted when the
• A Unit has failed.
power supply to the
Controller was
turned ON.
An unsupported • An unsupported CJ-series Unit
CJ-series Unit or or Power Supply Unit was
Power Supply Unit detected.
is mounted.
The total number of • The total number of I/O points
I/O points in the in the connected CJ-series
connected CJ- Basic I/O Units exceeds 2,560.
series Units
exceeds the maxi-
mum specified
value of the CPU
Unit.
The End Cover is • The End Cover is not con-
not connected to nected to right end of the CPU
right end of the Rack or an Expansion Rack.
CPU Rack or an
• The End Cover is not con-
Expansion Rack.
nected properly.
The number of • More than 10 Units are con-
Units or Expansion nected to one Rack.
Racks exceeds the
• More than three Expansion
maximum value
Racks are connected.
specified for the
• More than two Interrupt Input
CPU Unit. Or, an
Units are mounted.
Interrupt Input Unit
• An Interrupt Input Unit was
was mounted to a
mounted to a unsupported slot
unsupported slot or
or to an Expansion Rack.
to an Expansion
Rack.
The same unit num- • The same unit number is set for
ber is set for more more than one Special I/O Unit
than one Special or more than one CPU Bus
I/O Unit or more Unit.
than one CPU Bus
• The same unit number is
Unit.
assigned to a Special I/O Unit
that uses more than one unit
number and another Special I/O
Unit.
There is an incon- • A Unit model or Special Unit
sistency between a unit number in the Unit Configu-
Unit model in the ration in the CPU Unit is differ-
Unit Configuration ent from the Unit model or the
in the CPU Unit and Special Unit unit number of the
the Unit model that Unit that is mounted in the Con-
is mounted in the
troller.
Controller.
A fatal error was • An error occurred in the soft-
detected in the PLC ware.
Function Module.
Level
Maj Prt Min Obs Info
S
S
S
S
S
S
S
S
NJ-series CPU Unit Hardware User's Manual (W500)
Reference
page 5-46
page 5-47
page 5-47
page 5-48
page 5-48
page 5-49
page 5-50
page 5-50