Toshiba GR200 Series - 10.2.4 Supervision of ECC on memory (ECC error); (i) Error level; (ii) Error message

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 1239 -
10.2.4 Supervision of ECC on memory (ECC error)
The error-correcting code memory (ECC memory), in the CPU module, is verified at any time.
(i) Error level
The error level has been set at level 1 (Serious error
1
) for the supervision; checking error on
the ECC is carried out at any time. If the error is detected, the IED restarts its operation
automatically. The supervision function runs on the CPU module
1
. Clearing the error message
is made promptly when the error is solved.
1
Note: The CPU module is discussed in Chapter Technical description: Signal processing
and communication module: Processing module.
(ii) Error message
When detecting an error, an error message can be shown on the LCD screen and an LED is lit.
Table 10.2-9 Error messages provided by the supervisor in CHK_ECC
Message and level
Meaning of the information
CP*_ (ECC) error
Error in the ECC is detected on the following module instructed
with “CP*_” as follows:
CP1M: CPU module
Error level
Serious error (Level 1)
Table 10.2-10 Detailed information in Hexadecimal in CHK_ECC
Display
area
Meaning of the detailed information
Left column
Right column
Top
row
err_cnt value
Error address
Middle
row
Number of detections of bit errors
Address for rewriting failure occurred after
the correction of single bit error
Bottom
row
Number of rewriting failure occurred
after the correction of single bit error
ECC status
00000001: Completion of correction
00000002: Failure of correction
00000004: Detection of single error
00000008: Detection of several errors
00000010: Writing failure of data correction