Toshiba GR200 Series - 10.2.9 Detecting non-maskable interrupt (NMI error); (i) Error level; (ii) Error message

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 1244 -
10.2.9 Detecting non-maskable interrupt (NMI error)
The occurrences of non-maskable-interruptions (NMIs) on the CPU module are examined
every time; when the interruption is triggered, an interruption message is detected and
displayed.
(i) Error level
The error level has been set at level 1 (Serious error) for the supervision; detecting the
interruption carried out at any time. If the interruption 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 10.2-19 Error messages provided by the supervisor in CHK_NMI
Message and level
Meaning of the information
CP*_(NMI) error
Interruptions occurs on the following module instructed with
“CP*_” as follows:
CP1M: CPU module
Error level
Serious error (Level 1)
Table 10.2-20 Detailed information in Hexadecimal in NMI
Display
area
Meaning of the detailed information
Left column
Right column
Top
row
NMI code
LR register
Middle
row
SRR0 register
SPP1 register
Bottom
row
Stack pointer
FRSCR register