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6F3B0253
Basic Hardware and Function 289
10. Troubleshooting
Error message and related information Special Meaning and countermeasures
Event Info 1 Info 2 Info 3 device
Batt voltage drop S00F In the power-up initialization, data invalidity
of RAM (back-up area) has been detected.
If retentive registers are used, these validity
are not guaranteed. (No error down)
Boundary error Program
type -
Address
in the
FUN No. The register of index modification is other
than RW, T, C and D. (Error down)
block No. block S064 The register designated by index
modification has exceeded the allowable
range. That is, out of RW, T, C and D.
(No error down)
Check the value of the index register.
Clock-calendar error S00A The data of built-in calendar LSI is illegal.
(No error down)
Set the date and time.
(
Enhanced model
only)
Duplicate entry No. Program
type -
block No.
Address
in the
block
Entry No. Multiple SUBR instructions which have the
same subroutine number are programmed.
(Error down)
Check the program.
EEPROM BCC error Illegal
BCC
S004
S013
BCC error has been detected in the user
program of the EEPROM. (Error down)
Reload the program and execute EEPROM
write operation again.
EEPROM warning Number
of excess
writing
S007 The number of times of writing into
EEPROM has exceeded the life (100,000
times). (No error down)
Replace the unit because the data reliability
of the EEPROM will decrease.
I/O bus error Unit No. Data S005
S020
An abnormality has been detected in I/O
bus checking. (Error down)
Check the expansion cable connection and
I/O module mounting status.
I/O mismatch Unit No. -
slot No.
Register
No.
S005
S021
The I/O allocation information and the
actual I/O configuration are not identical.
(Error down)
Check the I/O allocation and the I/O module
mounting status.
I/O no answer Unit No. -
slot No.
Register
No.
S005
S022
No response from the T2 I/O module has
been received. (Error down)
Check the I/O allocation, the expansion
cable connection and the T2 I/O module
mounting status.
I/O parity error Unit No. -
slot No.
Register
No.
S005
S023
I/O bus parity error has been detected in
data read/write for T2 I/O modules. (Error
down)
Check the expansion cable connection and
the T2 I/O module mounting status.
Illegal I/O reg Unit No. -
slot No.
Register
No.
S005
S021
The allocated I/O register address exceeds
the limit, 32 words. (Error down)
Check the I/O allocation.