6F3B0253
290 T1-16S User’s Manual
10. Troubleshooting
Error message and related information Special Meaning and counter measures
Event Inf o 1 Info 2 Info 3 device
Illegal inst P rogr am
type -
block No.
Address
in the
block
S006
S030
S060
An illegal instruction has been detected in
the program. (Error down)
Reload the program and execute EEPROM
write operation again.
Illegal sys intrpt Interrupt
address 1 Interrupt
address 2 Unregistered interrupt has occurred. (No
error down)
If the error occurs frequently, replace the
unit.
Invalid Fun inst Program
type -
block No.
Address
in the
block
Fun No. A f unction instruction which is not supported
by the T1-16S is programmed. (Error down)
Correct the program.
Invalid program Program
type -
block No.
A basic ladder instruction which i s not
supported by the T1-16S is programmed.
(Error down)
Correct the program.
SUBR instruction is not programmed before
RET instruction. (Error down)
Correct the program.
An abnormality is detected in the program
management informat i on. (Error down)
Reload the program and execute EEPROM
write operation again.
Loop nesting error Program
type -
block No.
Address
in the
block
A FOR-NEXT loop is programm ed inside
other FOR-NEXT loop. (Error down)
Correct the program.
Memory full The program exceeds the executable
memory capacity. (Error down)
Reduce the program steps.
No END/IRET error Program
type -
block No.
Address
in the
block
The END instruction is not program med in
the main program or in the sub-program.
(Error down)
Correct the program.
The IRET instruction is not programmed in
the interrupt program. (Error down)
Correct the program.
No RET error Program
type -
block No.
Address
in the
block
Sub-r No. The RET instruction is not pr ogrammed in
the subroutine program. (Error down)
Correct the program.
No sub-r entry Program
type -
block No.
Address
in the
block
Sub-r No. The subroutine corresponding to CALL
instruction is not programmed. ( E r r or down)
Correct the program.