Toshiba GR200 Series - 10.2.3 Supervision of RAM (RAM error); (i) Error level; (ii) Error message

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 1238 -
10.2.3 Supervision of RAM (RAM error)
The read-write operation on RAM circuit of the CPU module is verified at any time; when the
error is found an error message is displayed by the supervision function.
(i) Error level
The error level has been set at level 1 (Serious error
1
) for the supervision; checking errors on
the RAM 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 cleared.
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 10.2-7 Error messages provided by the supervisor in CHK_RAM
Message and level
Meaning of the information
CP*_(RAM) error
Error detection in the RAM located on the following module
instructed with “CP*_” as follows:
CP1M: CPU module
Error level
Serious error (Level 1)
Table 10.2-8 Detailed information in Hexadecimal in CHK_RAM
Display
area
Meaning of the detailed information
Left column
Right column
Top
row
Read value
Write value
Middle
row
Error address
(No information displayed)
Bottom
row
(No information displayed)
(No information displayed)