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Supervision of MRAM (MRAM)
10.2.5
Magnetoresistive Random Access Memory (MRAM memory) is verified every one second. When
an error is found, the error message is displayed by the automatic supervision function.
Error level
(i)
The error level has been set at level 1 (Serious error) in the automatic supervision. Checking
is carried out at any time. If an error is detected, the IED automatically restarts the operation.
The supervision function runs for MRAM on CPU module
in one second when the error is solved.
Note: It is discussed in Chapter
1
communication module
Error message
(ii)
When detecting an error, the error message will be shown on the LCD screen. LED will be lit
up.
Table 10.2-9 Error messages provided by the supervisor in CHK_MRAM
Message and level
CP*_(MRAM) error
Error level
Table 10.2-10 Detailed information in Hexadecimal in CHK_MRAM
Display
area
Top
Address at error occurs
row
Middle
(No information is displayed)
row
Bottom
(No information is displayed)
row
Technical description: Signal processing and
(→p. 645)
Error detection in the MRAM located on the following module:
CP1M:
Serious error (Level 1)
Meaning of the detailed information
Left column
- 806 -
. The error message will be cleared
1
.
Meaning of the information
CPU module
Right column
00000001: Error detected with 0xaaaaaaaa
00000002: Error detected with 0x555555555
(No information is displayed)
(No information is displayed)
6F2T0207 (0.01)
GRE200 (5,6)
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