Toshiba GR-200 Series Instruction Manual page 705

Supervision of program codes (CPU error)
10.2.7
Verifying program codes in ROM and RAM is carried out every time. When an error is found
the error message will be displayed by the supervision function.
Error level
(i)
The error level has been set at level 1 (Serious error) in the automatic supervision. Detecting
code errors is carried out every second in RAM and ROM. If an error is detected, the IED
automatically restarts the operation. The supervision function runs for the program codes on
CPU module . The error message will be cleared promptly when the error is solved.
1
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 10.2-13 Error messages provided by the supervisor in CHK_PROGRAM
Message and level
CP*_(CPU) error
Error level
Table 10.2-14 Detailed information in Hexadecimal in CHK_PROGRAM
Display
Area
00000000: Add error
00000002: Sub error
Top
00000004: Mul error
row
00000008: Div error
00010000: Detection of overflow in Task stack
Middle
Head address of overflowing task
row
Bottom
(No information displayed)
Row
Technical description: Signal processing and
(→p. 528)
Meaning of the information
Error detection in the RAM and ROM located on the following
module:
CP1M: CPU module
Serious error (Level 1)
Meaning of the detailed information
Left column
- 686 -
.
Right column
Task number causing overflow
(No information displayed)
(No information displayed)
6F2T0200 (0.15)
GRE200 (1,2)