3-17
3 Error Tables
NJ-series Troubleshooting Manual (W503)
3-1 Errors by Source
3
3-1-2 Errors in the PLC Function Module
54010406 hex Illegal Data Posi-
tion Specified
A memory address or data
size that was specified for
the instruction is not suit-
able.
• A memory address
that was specified for
an instruction was out-
side the valid range.
The data size that was
specified for an
instruction exceeded
the valid range. For
example, the data type
of a variable and the
data size may not
agree.
S NJ-series
Instruc-
tions Ref-
erence
Manual
(Cat. No.
W502)
54010407 hex Data Range
Exceeded
The results of instruction
processing exceeded the
data area range of the out-
put parameter.
• The results of instruc-
tion processing, such
as the number of array
elements, exceeded
the data area range of
the output parameter.
S Same as
above.
54010409 hex No Errors to Clear An instruction to clear a
Controller error was exe-
cuted when there was no
error in the Controller.
• An instruction to clear
a Controller error was
executed when there
was no error in the
Controller.
S Same as
above.
5401040B hex No User Errors to
Clear
An instruction to clear user-
defined errors was exe-
cuted when there was no
user-defined error.
• An instruction to clear
user-defined errors
was executed when
there was no user-
defined error.
S Same as
above.
5401040C hex Limit Exceeded for
User-defined
Errors
An attempt was made to
use the Create User-
defined Error instruction to
create more than the maxi-
mum number of user-
defined errors.
• An attempt was made
to use the Create
User-defined Error
instruction to create
more than the maxi-
mum number of user-
defined errors.
S Same as
above.
5401040D hex Illegal Unit Speci-
fied
The Unit specified for an
instruction does not exist.
• A Unit that does not
exist in the Unit config-
uration information
was specified.
• A Unit that is in the
Unit configuration
information was speci-
fied, but the Units
does not actually exist
in the Controller.
S Same as
above.
5401040F hex Unit Restart Failed Restarting a Special I/O
Unit or CPU Bus Unit failed.
• The Special I/O Unit or
CPU Bus Unit is pro-
cessing data.
S Same as
above.
54010410 hex Text String Format
Error
The text string input to an
instruction is not correct.
• The text string that is
input to the instruction
f
or conversion
to a
number does not rep-
resent a number or it
does not represent a
positive number.
• The input text string
does not end in NULL.
S Same as
above.
54010411 hex Illegal Program
Specified
The program specified for
an instruction does not
exist.
• The program speci-
fied by the function
does not exist (e.g., it
was deleted).
S Same as
above.
Event code Event name Meaning Assumed cause
Level
Refer-
ence
Maj Prt Min Obs Info
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