6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 1075 -
10.2.2
Supervision of check-sum error (SUM error)
The check sum in the memory on the CPU module is verified every four minutes; when the
error is found the error message is displayed by the supervision function.
(i)
Error level
The error level has been set at level 1 (
Serious error
) for the supervision, the check-sum error
on the memory is carried out periodically. 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 10.2-5 Error messages provided by the supervisor in CHK_SUM
Message and level
Meaning of the information
CP*_ (SUM) error
Sum error in the memory detected on the following module:
CP1M: CPU module
Error level
Serious error (Level 1)
Table 10.2-6 Detailed information in Hexadecimal in CHK_SUM
Display
area
Meaning of the detailed information
Left column
Right column
Top
row
00000001: Read error in ROM
00000002: Sum incorrect in ROM RAM
Sum value calculated
Middle
row
Sum value pre-programmed
Address information that read error occurs
in the ROM
Bottom
row
(No information displayed)
(No information displayed)
Summary of Contents for GR 200 Series
Page 1047: ...6F2S1915 0 46 GRZ200 Soft 031 032 1026 Figure 8 3 4 Screen shot from GR TIEMS ...
Page 1354: ...6F2S1915 0 46 GRZ200 Soft 031 032 1333 Appendix 1 Signal list for common function ...
Page 1410: ...6F2S1915 0 46 GRZ200 Soft 031 032 1389 This page is intentionally blank ...
Page 1480: ...6F2S1915 0 46 GRZ200 Soft 031 032 1459 Appendix 6 Ordering ...
Page 1497: ...6F2S1915 0 46 GRZ200 Soft 031 032 1476 Appendix 7 Technical data ...
Page 1518: ...6F2S1915 0 46 GRZ200 Soft 031 032 1497 Appendix 8 Manufacture setting ...
Page 1523: ...6F2S1915 0 46 GRZ200 Soft 031 032 1502 Appendix 10 CT requirement ...
Page 1531: ...6F2S1915 0 46 GRZ200 Soft 031 032 1510 Appendix 12 Engineering exercise ...
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